{
  "actions_passed": 0,
  "action_type": "GAME_TARGET",
  "players": "Gem3P Proud(you,20hp), GPT5n Contra(20hp)",
  "context": "T1 ()",
  "stop_reason": "non_priority_action",
  "response_type": "index",
  "can_cancel": false,
  "respond_with": "id=\"pN\" or index=N",
  "message": "Select a starting player",
  "choices": [
    {
      "is_you": true,
      "name": "Gem3P Proud",
      "target_type": "player",
      "index": 0,
      "id": "p1"
    },
    {
      "name": "GPT5n Contra",
      "target_type": "player",
      "index": 1,
      "id": "p2"
    }
  ],
  "required": true,
  "action_pending": true
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_ASK",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_ASK. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_target_0"
}

{
  "cards": [
    {
      "name": "Boomerang Basics",
      "rules": [
        "Return target nonland permanent to its owner's hand. If you controlled that permanent, draw a card."
      ]
    }
  ],
  "success": true
}

{
  "hand_size": 7,
  "actions_passed": 0,
  "action_type": "GAME_ASK",
  "players": "Gem3P Proud(20hp), GPT5n Contra(you,20hp)",
  "land_count": 5,
  "context": "T1 ()",
  "stop_reason": "non_priority_action",
  "response_type": "boolean",
  "respond_with": "answer=true or answer=false",
  "message": "Mulligan down to 6 cards?",
  "your_hand": [
    {
      "name": "Floodfarm Verge",
      "is_land": true
    },
    {
      "name": "Fomori Vault",
      "is_land": true
    },
    {
      "name": "Island",
      "is_land": true
    },
    {
      "name": "Plains",
      "is_land": true
    },
    {
      "name": "Temple of Enlightenment",
      "is_land": true
    },
    {
      "mana_cost": "{3}{W}",
      "name": "United Battlefront"
    },
    {
      "mana_cost": "{1}{W}{W}",
      "name": "Pinnacle Starcage"
    }
  ],
  "action_pending": true
}

{
  "success": true,
  "action_taken": "no"
}

{
  "cards": [
    {
      "name": "Wild Ride",
      "rules": [
        "Target creature gets +3/+0 and gains haste until end of turn.",
        "Harmonize {4}{R} (You may cast this card from your graveyard for its harmonize cost. You may tap a creature you control to reduce that cost by {X}, where X is its power. Then exile this spell.)"
      ]
    },
    {
      "name": "Stock Up",
      "rules": [
        "Look at the top five cards of your library. Put two of them into your hand and the rest on the bottom of your library in any order."
      ]
    }
  ],
  "success": true
}

{
  "actions_passed": 0,
  "land_drops_used": 0,
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(you,20hp), GPT5n Contra(20hp)",
  "context": "T1 Precombat Main/Precombat Main (Gem3P Proud) YOUR_MAIN",
  "stop_reason": "pending_action_from_choose_action",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "response_type": "select",
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "message": "Play spells and abilities",
  "choices": [
    {
      "name": "Steam Vents",
      "index": 0,
      "action": "land",
      "id": "p7"
    },
    {
      "name": "Riverpyre Verge",
      "index": 1,
      "action": "land",
      "id": "p8"
    }
  ],
  "action_pending": true
}

{
  "cards": [
    {
      "name": "Riverpyre Verge",
      "rules": [
        "{T}: Add {R}.",
        "{T}: Add {U}. Activate only if you control an Island or a Mountain."
      ]
    }
  ],
  "success": true
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_1"
}

{
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(you,20hp), GPT5n Contra(20hp)",
  "stop_reason": "pending_action_from_choose_action",
  "response_type": "select",
  "untapped_lands": 1,
  "message": "Play spells and abilities",
  "action_pending": true,
  "actions_passed": 0,
  "land_drops_used": 1,
  "context": "T1 Precombat Main/Precombat Main (Gem3P Proud) YOUR_MAIN",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "choices": [
    {
      "mana_cost": "{R}",
      "name": "Burst Lightning",
      "index": 0,
      "action": "cast",
      "id": "p3"
    }
  ]
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "passed_priority"
}

{
  "actions_passed": 3,
  "action_type": "GAME_SELECT",
  "stop_reason": "step_not_reached",
  "recent_chat": [
    "Gem3P Proud: This is workable. Let's roll."
  ],
  "action_pending": true,
  "current_step": "Precombat Main"
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_0"
}

{
  "actions_passed": 1,
  "has_playable_cards": true,
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(you,20hp), GPT5n Contra(20hp)",
  "context": "T1 Combat/Declare Attackers (GPT5n Contra)",
  "stop_reason": "playable_cards",
  "response_type": "select",
  "untapped_lands": 1,
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "message": "Play instants and activated abilities",
  "choices": [
    {
      "mana_cost": "{R}",
      "name": "Burst Lightning",
      "index": 0,
      "action": "cast",
      "id": "p3"
    }
  ],
  "action_pending": true
}

{
  "phase": "Postcombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 1,
  "stack": [],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 5,
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p6"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 50,
      "life": 20
    },
    {
      "hand_size": 7,
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": false,
          "name": "Floodfarm Verge",
          "id": "p1"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 50,
      "life": 20,
      "hand": [
        {
          "name": "Fomori Vault",
          "is_land": true,
          "id": "p2"
        },
        {
          "name": "Island",
          "is_land": true,
          "id": "p4"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "name": "Temple of Enlightenment",
          "is_land": true,
          "id": "p3"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p9"
        }
      ]
    }
  ],
  "available": true,
  "step": "Postcombat Main",
  "turn": 1
}

{
  "success": true,
  "action_taken": "passed_priority"
}

{
  "actions_passed": 0,
  "land_drops_used": 0,
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(20hp), GPT5n Contra(you,20hp)",
  "context": "T1 Postcombat Main/Postcombat Main (GPT5n Contra) YOUR_MAIN",
  "stop_reason": "pending_action_from_choose_action",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "response_type": "boolean",
  "untapped_lands": 1,
  "respond_with": "answer=true (confirm) or answer=false (pass)",
  "message": "Play spells and abilities",
  "action_pending": true
}

{
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(you,20hp), GPT5n Contra(20hp)",
  "stop_reason": "playable_cards",
  "response_type": "select",
  "untapped_lands": 1,
  "message": "Play spells and abilities",
  "action_pending": true,
  "actions_passed": 1,
  "land_drops_used": 0,
  "has_playable_cards": true,
  "context": "T2 Precombat Main/Precombat Main (Gem3P Proud) YOUR_MAIN",
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "choices": [
    {
      "mana_cost": "{R}",
      "name": "Burst Lightning",
      "index": 0,
      "action": "cast",
      "id": "p3"
    },
    {
      "name": "Steam Vents",
      "index": 1,
      "action": "land",
      "id": "p10"
    },
    {
      "name": "Steam Vents",
      "index": 2,
      "action": "land",
      "id": "p7"
    }
  ]
}

{
  "success": true,
  "action_taken": "confirmed"
}

{
  "phase": "Precombat Main",
  "priority_player": "Gem3P Proud",
  "cursor": 2,
  "stack": [],
  "active_player": "Gem3P Proud",
  "players": [
    {
      "hand_size": 6,
      "is_active": true,
      "is_you": false,
      "battlefield": [
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p6"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 49,
      "life": 20
    },
    {
      "hand_size": 7,
      "is_active": false,
      "is_you": true,
      "battlefield": [
        {
          "tapped": false,
          "name": "Floodfarm Verge",
          "id": "p1"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 50,
      "life": 20,
      "hand": [
        {
          "name": "Fomori Vault",
          "is_land": true,
          "id": "p2"
        },
        {
          "name": "Island",
          "is_land": true,
          "id": "p4"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "name": "Temple of Enlightenment",
          "is_land": true,
          "id": "p3"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p9"
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 2
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_ASK",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_ASK. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_2"
}

{
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(you,20hp), GPT5n Contra(20hp)",
  "stop_reason": "pending_action_from_choose_action",
  "response_type": "select",
  "untapped_lands": 1,
  "message": "Play spells and abilities",
  "action_pending": true,
  "actions_passed": 0,
  "land_drops_used": 1,
  "context": "T2 Precombat Main/Precombat Main (Gem3P Proud) YOUR_MAIN",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "choices": [
    {
      "mana_cost": "{R}",
      "name": "Burst Lightning",
      "index": 0,
      "action": "cast",
      "id": "p3"
    },
    {
      "mana_cost": "{U}",
      "name": "Sleight of Hand",
      "index": 1,
      "action": "cast",
      "id": "p4"
    },
    {
      "mana_cost": "{U}",
      "name": "Opt",
      "index": 2,
      "action": "cast",
      "id": "p6"
    }
  ]
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_CHOOSE_ABILITY",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_CHOOSE_ABILITY. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_1"
}

{
  "retryable": false,
  "success": false,
  "error_code": "no_pending_action",
  "error": "No pending action after 10s wait"
}

{
  "actions_passed": 0,
  "action_type": "GAME_SELECT",
  "stop_reason": "step_not_reached",
  "action_pending": true,
  "current_step": "Precombat Main"
}

{
  "action_type": "GAME_TARGET",
  "players": "Gem3P Proud(you,20hp), GPT5n Contra(20hp)",
  "stop_reason": "non_priority_action",
  "response_type": "index",
  "can_cancel": false,
  "message": "Select a card (to put into your hand)",
  "required": true,
  "action_pending": true,
  "actions_passed": 0,
  "land_drops_used": 1,
  "context": "T2 Precombat Main/Precombat Main (Gem3P Proud) YOUR_MAIN",
  "respond_with": "id=\"pN\" or index=N",
  "choices": [
    {
      "name": "Sleight of Hand",
      "target_type": "card",
      "index": 0,
      "id": "p13"
    },
    {
      "name": "Multiversal Passage",
      "target_type": "card",
      "index": 1,
      "id": "p14"
    }
  ]
}

{
  "cards": [
    {
      "name": "Multiversal Passage",
      "rules": [
        "As {this} enters, choose a basic land type. Tap {this} unless you pay 2 life.",
        "This land is the chosen type."
      ]
    }
  ],
  "success": true
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_target_0"
}

{
  "actions_passed": 3,
  "action_type": "GAME_SELECT",
  "stop_reason": "step_not_reached",
  "action_pending": true,
  "current_step": "Precombat Main"
}

{
  "phase": "Combat",
  "priority_player": "GPT5n Contra",
  "cursor": 4,
  "stack": [],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 5,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p11"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 48,
      "life": 20
    },
    {
      "hand_size": 7,
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": false,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": false,
          "name": "Fomori Vault",
          "id": "p2"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 49,
      "life": 20,
      "hand": [
        {
          "name": "Island",
          "is_land": true,
          "id": "p4"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "name": "Temple of Enlightenment",
          "is_land": true,
          "id": "p3"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p9"
        },
        {
          "name": "Floodfarm Verge",
          "is_land": true,
          "id": "p10"
        }
      ]
    }
  ],
  "available": true,
  "step": "Declare Attackers",
  "turn": 2
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "passed_priority",
  "warning": "Ignored attackers parameter (not in declare_attackers phase)"
}

{
  "phase": "Postcombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 5,
  "stack": [],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 5,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p11"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 48,
      "life": 20
    },
    {
      "hand_size": 7,
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": false,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": false,
          "name": "Fomori Vault",
          "id": "p2"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 49,
      "life": 20,
      "hand": [
        {
          "name": "Island",
          "is_land": true,
          "id": "p4"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "name": "Temple of Enlightenment",
          "is_land": true,
          "id": "p3"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p9"
        },
        {
          "name": "Floodfarm Verge",
          "is_land": true,
          "id": "p10"
        }
      ]
    }
  ],
  "available": true,
  "step": "Postcombat Main",
  "turn": 2
}

{
  "retryable": true,
  "success": false,
  "warning": "Both id and index provided; used id=p1, ignored index=0",
  "error_code": "invalid_choice",
  "error": "Object p1 not found in current choices"
}

{
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(you,20hp), GPT5n Contra(20hp)",
  "stop_reason": "playable_cards",
  "response_type": "select",
  "untapped_lands": 2,
  "message": "Play spells and abilities",
  "action_pending": true,
  "actions_passed": 5,
  "land_drops_used": 0,
  "has_playable_cards": true,
  "context": "T3 Precombat Main/Precombat Main (Gem3P Proud) YOUR_MAIN",
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "choices": [
    {
      "mana_cost": "{U}",
      "name": "Sleight of Hand",
      "index": 0,
      "action": "cast",
      "id": "p13"
    },
    {
      "mana_cost": "{R}",
      "name": "Burst Lightning",
      "index": 1,
      "action": "cast",
      "id": "p3"
    },
    {
      "name": "Steam Vents",
      "index": 2,
      "action": "land",
      "id": "p10"
    },
    {
      "name": "Spirebluff Canal",
      "index": 3,
      "action": "land",
      "id": "p15"
    },
    {
      "mana_cost": "{U}",
      "name": "Opt",
      "index": 4,
      "action": "cast",
      "id": "p6"
    }
  ]
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_3"
}

{
  "cards": [
    {
      "name": "Stock Up",
      "rules": [
        "Look at the top five cards of your library. Put two of them into your hand and the rest on the bottom of your library in any order."
      ]
    }
  ],
  "success": true
}

{
  "actions_passed": 1,
  "action_type": "GAME_SELECT",
  "stop_reason": "step_not_reached",
  "action_pending": true,
  "current_step": "Precombat Main"
}

{
  "cards": [
    {
      "name": "Stormchaser's Talent",
      "rules": [
        "(Gain the next level as a sorcery to add its ability.)",
        "When {this} enters, create a 1/1 blue and red Otter creature token with prowess.",
        "{3}{U}: Level 2",
        "When this Class becomes level 2, return target instant or sorcery card from your graveyard to your hand.",
        "{5}{U}: Level 3",
        "Whenever you cast an instant or sorcery spell, create a 1/1 blue and red Otter creature token with prowess."
      ]
    }
  ],
  "success": true
}

{
  "cursor": 6,
  "available": true,
  "unchanged": true
}

{
  "phase": "Precombat Main",
  "priority_player": "Gem3P Proud",
  "cursor": 7,
  "stack": [],
  "active_player": "Gem3P Proud",
  "players": [
    {
      "hand_size": 6,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p4"
        },
        {
          "name": "Stock Up",
          "id": "p9"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p8"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p7"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p15"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 45,
      "life": 20,
      "hand": [
        {
          "mana_cost": "{R}",
          "name": "Burst Lightning",
          "id": "p3"
        },
        {
          "mana_cost": "{U}",
          "name": "Opt",
          "id": "p6"
        },
        {
          "name": "Steam Vents",
          "is_land": true,
          "id": "p10"
        },
        {
          "mana_cost": "{U}",
          "name": "Sleight of Hand",
          "id": "p13"
        },
        {
          "mana_cost": "{U}",
          "name": "Stormchaser's Talent",
          "id": "p18"
        },
        {
          "mana_cost": "{R}",
          "name": "Burst Lightning",
          "id": "p20"
        }
      ]
    },
    {
      "hand_size": 7,
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": false,
          "name": "Floodfarm Verge",
          "id": "p11"
        },
        {
          "tapped": false,
          "name": "Fomori Vault",
          "id": "p16"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 49,
      "life": 20
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 3
}

{
  "actions_passed": 0,
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(you,20hp), GPT5n Contra(20hp)",
  "context": "T3 Combat/Declare Attackers (Gem3P Proud)",
  "stop_reason": "pending_action_from_choose_action",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "response_type": "boolean",
  "respond_with": "answer=true (confirm) or answer=false (pass)",
  "message": "Play instants and activated abilities",
  "action_pending": true
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "passed_priority"
}

{
  "actions_passed": 3,
  "action_type": "GAME_SELECT",
  "stop_reason": "step_not_reached",
  "recent_chat": [
    "Gem3P Proud: Digging deep. Found the goods."
  ],
  "action_pending": true,
  "current_step": "Precombat Main"
}

{
  "actions_passed": 0,
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(you,20hp), GPT5n Contra(20hp)",
  "context": "T3 Precombat Main/Precombat Main (GPT5n Contra)",
  "stop_reason": "pending_action_from_choose_action",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "response_type": "boolean",
  "respond_with": "answer=true (confirm) or answer=false (pass)",
  "message": "Play instants and activated abilities",
  "action_pending": true
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "passed_priority"
}

{
  "phase": "Combat",
  "priority_player": "GPT5n Contra",
  "cursor": 9,
  "stack": [],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 6,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 45,
      "life": 20
    },
    {
      "hand_size": 7,
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": false,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": false,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": true,
          "name": "Temple of Enlightenment",
          "id": "p3"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 48,
      "life": 20,
      "hand": [
        {
          "name": "Island",
          "is_land": true,
          "id": "p4"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p9"
        },
        {
          "name": "Floodfarm Verge",
          "is_land": true,
          "id": "p10"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p15"
        }
      ]
    }
  ],
  "available": true,
  "step": "Declare Attackers",
  "turn": 3
}

{
  "actions_passed": 0,
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(20hp), GPT5n Contra(you,20hp)",
  "context": "T3 Combat/Declare Attackers (GPT5n Contra)",
  "stop_reason": "pending_action_from_choose_action",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "response_type": "boolean",
  "untapped_lands": 2,
  "respond_with": "answer=true (confirm) or answer=false (pass)",
  "message": "Play instants and activated abilities",
  "action_pending": true
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "passed_priority"
}

{
  "phase": "Postcombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 10,
  "stack": [],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 6,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 45,
      "life": 20
    },
    {
      "hand_size": 7,
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": false,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": false,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": true,
          "name": "Temple of Enlightenment",
          "id": "p3"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 48,
      "life": 20,
      "hand": [
        {
          "name": "Island",
          "is_land": true,
          "id": "p4"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p9"
        },
        {
          "name": "Floodfarm Verge",
          "is_land": true,
          "id": "p10"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p15"
        }
      ]
    }
  ],
  "available": true,
  "step": "Postcombat Main",
  "turn": 3
}

{
  "actions_passed": 0,
  "land_drops_used": 1,
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(20hp), GPT5n Contra(you,20hp)",
  "context": "T3 Postcombat Main/Postcombat Main (GPT5n Contra) YOUR_MAIN",
  "stop_reason": "pending_action_from_choose_action",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "response_type": "boolean",
  "untapped_lands": 2,
  "respond_with": "answer=true (confirm) or answer=false (pass)",
  "message": "Play spells and abilities",
  "action_pending": true
}

{
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(you,20hp), GPT5n Contra(20hp)",
  "stop_reason": "playable_cards",
  "response_type": "select",
  "untapped_lands": 3,
  "message": "Play spells and abilities",
  "action_pending": true,
  "actions_passed": 2,
  "land_drops_used": 0,
  "has_playable_cards": true,
  "context": "T4 Precombat Main/Precombat Main (Gem3P Proud) YOUR_MAIN",
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "choices": [
    {
      "mana_cost": "{U}",
      "name": "Sleight of Hand",
      "index": 0,
      "action": "cast",
      "id": "p13"
    },
    {
      "mana_cost": "{R}",
      "name": "Burst Lightning",
      "index": 1,
      "action": "cast",
      "id": "p3"
    },
    {
      "name": "Steam Vents",
      "index": 2,
      "action": "land",
      "id": "p10"
    },
    {
      "mana_cost": "{U}",
      "name": "Opt",
      "index": 3,
      "action": "cast",
      "id": "p6"
    },
    {
      "mana_cost": "{U}",
      "name": "Stormchaser's Talent",
      "index": 4,
      "action": "cast",
      "id": "p18"
    },
    {
      "name": "Spirebluff Canal",
      "index": 5,
      "action": "land",
      "id": "p24"
    },
    {
      "mana_cost": "{R}",
      "name": "Burst Lightning",
      "index": 6,
      "action": "cast",
      "id": "p20"
    }
  ]
}

{
  "phase": "Precombat Main",
  "priority_player": "Gem3P Proud",
  "cursor": 10,
  "stack": [],
  "active_player": "Gem3P Proud",
  "players": [
    {
      "hand_size": 7,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p4"
        },
        {
          "name": "Stock Up",
          "id": "p9"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p8"
        },
        {
          "tapped": false,
          "name": "Steam Vents",
          "id": "p7"
        },
        {
          "tapped": false,
          "name": "Spirebluff Canal",
          "id": "p15"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 44,
      "life": 20,
      "hand": [
        {
          "mana_cost": "{R}",
          "name": "Burst Lightning",
          "id": "p3",
          "playable": true
        },
        {
          "mana_cost": "{U}",
          "name": "Opt",
          "id": "p6",
          "playable": true
        },
        {
          "name": "Steam Vents",
          "is_land": true,
          "id": "p10",
          "playable": true
        },
        {
          "mana_cost": "{U}",
          "name": "Sleight of Hand",
          "id": "p13",
          "playable": true
        },
        {
          "mana_cost": "{U}",
          "name": "Stormchaser's Talent",
          "id": "p18",
          "playable": true
        },
        {
          "mana_cost": "{R}",
          "name": "Burst Lightning",
          "id": "p20",
          "playable": true
        },
        {
          "name": "Spirebluff Canal",
          "is_land": true,
          "id": "p24",
          "playable": true
        }
      ]
    },
    {
      "hand_size": 7,
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": false,
          "name": "Floodfarm Verge",
          "id": "p11"
        },
        {
          "tapped": false,
          "name": "Fomori Vault",
          "id": "p16"
        },
        {
          "tapped": true,
          "name": "Temple of Enlightenment",
          "id": "p23"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 48,
      "life": 20
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 4
}

{
  "success": true,
  "action_taken": "confirmed"
}

{
  "phase": "Precombat Main",
  "priority_player": "Gem3P Proud",
  "cursor": 11,
  "stack": [],
  "active_player": "Gem3P Proud",
  "players": [
    {
      "hand_size": 7,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        }
      ],
      "is_active": true,
      "is_you": false,
      "battlefield": [
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": false,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": false,
          "name": "Spirebluff Canal",
          "id": "p13"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 44,
      "life": 20
    },
    {
      "hand_size": 7,
      "is_active": false,
      "is_you": true,
      "battlefield": [
        {
          "tapped": false,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": false,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": true,
          "name": "Temple of Enlightenment",
          "id": "p3"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 48,
      "life": 20,
      "hand": [
        {
          "name": "Island",
          "is_land": true,
          "id": "p4"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p9"
        },
        {
          "name": "Floodfarm Verge",
          "is_land": true,
          "id": "p10"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p15"
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 4
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_5"
}

{
  "actions_passed": 0,
  "action_type": "GAME_SELECT",
  "stop_reason": "step_not_reached",
  "action_pending": true,
  "current_step": "Precombat Main"
}

{
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(you,20hp), GPT5n Contra(20hp)",
  "stop_reason": "playable_cards",
  "response_type": "select",
  "untapped_lands": 2,
  "message": "Play spells and abilities",
  "action_pending": true,
  "actions_passed": 1,
  "land_drops_used": 1,
  "has_playable_cards": true,
  "context": "T4 Precombat Main/Precombat Main (Gem3P Proud) YOUR_MAIN",
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "choices": [
    {
      "mana_cost": "{U}",
      "name": "Sleight of Hand",
      "index": 0,
      "action": "cast",
      "id": "p13"
    },
    {
      "mana_cost": "{R}",
      "name": "Burst Lightning",
      "index": 1,
      "action": "cast",
      "id": "p3"
    },
    {
      "mana_cost": "{U}",
      "name": "Opt",
      "index": 2,
      "action": "cast",
      "id": "p6"
    },
    {
      "mana_cost": "{R}",
      "name": "Burst Lightning",
      "index": 3,
      "action": "cast",
      "id": "p20"
    }
  ]
}

{
  "phase": "Precombat Main",
  "priority_player": "Gem3P Proud",
  "cursor": 14,
  "stack": [],
  "active_player": "Gem3P Proud",
  "players": [
    {
      "hand_size": 5,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p4"
        },
        {
          "name": "Stock Up",
          "id": "p9"
        },
        {
          "name": "Sleight of Hand",
          "id": "p13"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p8"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p7"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p15"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p24"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p18"
        },
        {
          "tapped": false,
          "name": "Otter Token",
          "summoning_sickness": true,
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p25",
          "power": "2",
          "toughness": "2",
          "token": true
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 43,
      "life": 20,
      "hand": [
        {
          "mana_cost": "{R}",
          "name": "Burst Lightning",
          "id": "p3",
          "playable": true
        },
        {
          "mana_cost": "{U}",
          "name": "Opt",
          "id": "p6",
          "playable": true
        },
        {
          "name": "Steam Vents",
          "is_land": true,
          "id": "p10"
        },
        {
          "mana_cost": "{R}",
          "name": "Burst Lightning",
          "id": "p20",
          "playable": true
        },
        {
          "mana_cost": "{U}",
          "name": "Into the Flood Maw",
          "id": "p28"
        }
      ]
    },
    {
      "hand_size": 7,
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": false,
          "name": "Floodfarm Verge",
          "id": "p11"
        },
        {
          "tapped": false,
          "name": "Fomori Vault",
          "id": "p16"
        },
        {
          "tapped": true,
          "name": "Temple of Enlightenment",
          "id": "p23"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 48,
      "life": 20
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 4
}

{
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(20hp), GPT5n Contra(you,20hp)",
  "stop_reason": "playable_cards",
  "response_type": "select",
  "untapped_lands": 3,
  "message": "Play spells and abilities",
  "action_pending": true,
  "actions_passed": 5,
  "land_drops_used": 0,
  "has_playable_cards": true,
  "context": "T4 Precombat Main/Precombat Main (GPT5n Contra) YOUR_MAIN",
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "choices": [
    {
      "name": "Fomori Vault",
      "index": 0,
      "action": "activate",
      "playable_abilities": [
        "{3}, {T}, Discard a card: Look at the top X cards..."
      ],
      "id": "p2"
    },
    {
      "name": "Plains",
      "index": 1,
      "action": "land",
      "id": "p15"
    },
    {
      "name": "Floodfarm Verge",
      "index": 2,
      "action": "land",
      "id": "p10"
    },
    {
      "mana_cost": "{U}",
      "name": "Three Steps Ahead",
      "index": 3,
      "action": "cast",
      "id": "p19"
    },
    {
      "name": "Island",
      "index": 4,
      "action": "land",
      "id": "p4"
    },
    {
      "name": "Plains",
      "index": 5,
      "action": "land",
      "id": "p5"
    },
    {
      "mana_cost": "{1}{W}{W}",
      "name": "Pinnacle Starcage",
      "index": 6,
      "action": "cast",
      "id": "p8"
    }
  ]
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_CHOOSE_ABILITY",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_CHOOSE_ABILITY. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_3"
}

{
  "phase": "Precombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 14,
  "stack": [],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 5,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": false,
          "name": "Otter Token",
          "summoning_sickness": true,
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 43,
      "life": 20
    },
    {
      "hand_size": 8,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": true,
          "name": "Temple of Enlightenment",
          "id": "p3"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 45,
      "life": 20,
      "hand": [
        {
          "name": "Island",
          "is_land": true,
          "id": "p4",
          "playable": true
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5",
          "playable": true
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p9"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p15",
          "playable": true
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25"
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26"
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 4
}

{
  "actions_passed": 0,
  "land_drops_used": 0,
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(20hp), GPT5n Contra(you,20hp)",
  "context": "T4 Precombat Main/Precombat Main (GPT5n Contra) YOUR_MAIN",
  "stop_reason": "pending_action_from_choose_action",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "response_type": "select",
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "message": "Play spells and abilities",
  "choices": [
    {
      "name": "Plains",
      "index": 0,
      "action": "land",
      "id": "p15"
    },
    {
      "name": "Island",
      "index": 1,
      "action": "land",
      "id": "p4"
    },
    {
      "name": "Plains",
      "index": 2,
      "action": "land",
      "id": "p5"
    }
  ],
  "action_pending": true
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_0"
}

{
  "phase": "Precombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 15,
  "stack": [],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 5,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": false,
          "name": "Otter Token",
          "summoning_sickness": true,
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 43,
      "life": 20
    },
    {
      "hand_size": 7,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": true,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": false,
          "name": "Plains",
          "id": "p15"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 45,
      "life": 20,
      "hand": [
        {
          "name": "Island",
          "is_land": true,
          "id": "p4"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p9"
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25"
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26"
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 4
}

{
  "actions_passed": 1,
  "has_playable_cards": true,
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(you,20hp), GPT5n Contra(20hp)",
  "context": "T4 Precombat Main/Precombat Main (GPT5n Contra)",
  "stop_reason": "playable_cards",
  "response_type": "select",
  "untapped_lands": 1,
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "message": "Play instants and activated abilities",
  "choices": [
    {
      "mana_cost": "{R}",
      "name": "Burst Lightning",
      "index": 0,
      "action": "cast",
      "id": "p3"
    },
    {
      "mana_cost": "{U}",
      "name": "Opt",
      "index": 1,
      "action": "cast",
      "id": "p6"
    },
    {
      "mana_cost": "{R}",
      "name": "Burst Lightning",
      "index": 2,
      "action": "cast",
      "id": "p20"
    }
  ],
  "action_pending": true
}

{
  "phase": "Precombat Main",
  "priority_player": "Gem3P Proud",
  "cursor": 16,
  "stack": [],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 5,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p4"
        },
        {
          "name": "Stock Up",
          "id": "p9"
        },
        {
          "name": "Sleight of Hand",
          "id": "p13"
        }
      ],
      "is_active": false,
      "is_you": true,
      "battlefield": [
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p8"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p7"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p15"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p24"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p18"
        },
        {
          "tapped": false,
          "name": "Otter Token",
          "summoning_sickness": true,
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p25",
          "power": "1",
          "toughness": "1",
          "token": true
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 43,
      "life": 20,
      "hand": [
        {
          "mana_cost": "{R}",
          "name": "Burst Lightning",
          "id": "p3",
          "playable": true
        },
        {
          "mana_cost": "{U}",
          "name": "Opt",
          "id": "p6",
          "playable": true
        },
        {
          "name": "Steam Vents",
          "is_land": true,
          "id": "p10"
        },
        {
          "mana_cost": "{R}",
          "name": "Burst Lightning",
          "id": "p20",
          "playable": true
        },
        {
          "mana_cost": "{U}",
          "name": "Into the Flood Maw",
          "id": "p28"
        }
      ]
    },
    {
      "hand_size": 7,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p31"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p32"
        }
      ],
      "is_active": true,
      "is_you": false,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p16"
        },
        {
          "tapped": true,
          "name": "Temple of Enlightenment",
          "id": "p23"
        },
        {
          "tapped": false,
          "name": "Plains",
          "id": "p30"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 45,
      "life": 20
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 4
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "confirmed"
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "passed_priority"
}

{
  "actions_passed": 0,
  "land_drops_used": 1,
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(20hp), GPT5n Contra(you,20hp)",
  "context": "T4 Postcombat Main/Postcombat Main (GPT5n Contra) YOUR_MAIN",
  "stop_reason": "pending_action_from_choose_action",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "response_type": "boolean",
  "untapped_lands": 1,
  "respond_with": "answer=true (confirm) or answer=false (pass)",
  "message": "Play spells and abilities",
  "action_pending": true
}

{
  "success": true,
  "action_taken": "confirmed"
}

{
  "phase": "Precombat Main",
  "priority_player": "Gem3P Proud",
  "cursor": 17,
  "stack": [],
  "active_player": "Gem3P Proud",
  "players": [
    {
      "hand_size": 6,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        }
      ],
      "is_active": true,
      "is_you": false,
      "battlefield": [
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": false,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": false,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": false,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": false,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 42,
      "life": 20
    },
    {
      "hand_size": 7,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        }
      ],
      "is_active": false,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": true,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": false,
          "name": "Plains",
          "id": "p15"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 45,
      "life": 20,
      "hand": [
        {
          "name": "Island",
          "is_land": true,
          "id": "p4"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p9"
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25"
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26"
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 5
}

{
  "phase": "Precombat Main",
  "priority_player": "Gem3P Proud",
  "cursor": 17,
  "stack": [],
  "active_player": "Gem3P Proud",
  "players": [
    {
      "hand_size": 6,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p4"
        },
        {
          "name": "Stock Up",
          "id": "p9"
        },
        {
          "name": "Sleight of Hand",
          "id": "p13"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p8"
        },
        {
          "tapped": false,
          "name": "Steam Vents",
          "id": "p7"
        },
        {
          "tapped": false,
          "name": "Spirebluff Canal",
          "id": "p15"
        },
        {
          "tapped": false,
          "name": "Spirebluff Canal",
          "id": "p24"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p18"
        },
        {
          "tapped": false,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p25",
          "power": "1",
          "toughness": "1",
          "token": true
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 42,
      "life": 20,
      "hand": [
        {
          "mana_cost": "{R}",
          "name": "Burst Lightning",
          "id": "p3",
          "playable": true
        },
        {
          "mana_cost": "{U}",
          "name": "Opt",
          "id": "p6",
          "playable": true
        },
        {
          "name": "Steam Vents",
          "is_land": true,
          "id": "p10",
          "playable": true
        },
        {
          "mana_cost": "{R}",
          "name": "Burst Lightning",
          "id": "p20",
          "playable": true
        },
        {
          "mana_cost": "{U}",
          "name": "Into the Flood Maw",
          "id": "p28"
        },
        {
          "mana_cost": "{U}",
          "name": "Boomerang Basics",
          "id": "p33",
          "playable": true
        }
      ]
    },
    {
      "hand_size": 7,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p31"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p32"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p16"
        },
        {
          "tapped": true,
          "name": "Temple of Enlightenment",
          "id": "p23"
        },
        {
          "tapped": false,
          "name": "Plains",
          "id": "p30"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 45,
      "life": 20
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 5
}

{
  "retryable": false,
  "success": false,
  "error_code": "no_pending_action",
  "error": "No pending action after 10s wait"
}

{
  "success": true,
  "name": "Boomerang Basics",
  "rules": [
    "Return target nonland permanent to its owner's hand. If you controlled that permanent, draw a card."
  ]
}

{
  "actions_passed": 0,
  "action_type": "GAME_SELECT",
  "stop_reason": "step_not_reached",
  "action_pending": true,
  "current_step": "Precombat Main"
}

{
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(18hp), GPT5n Contra(you,18hp)",
  "stop_reason": "playable_cards",
  "response_type": "select",
  "untapped_lands": 4,
  "message": "Play spells and abilities",
  "action_pending": true,
  "actions_passed": 5,
  "land_drops_used": 0,
  "has_playable_cards": true,
  "context": "T5 Precombat Main/Precombat Main (GPT5n Contra) YOUR_MAIN",
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "choices": [
    {
      "name": "Fomori Vault",
      "index": 0,
      "action": "activate",
      "playable_abilities": [
        "{3}, {T}, Discard a card: Look at the top X cards..."
      ],
      "id": "p2"
    },
    {
      "mana_cost": "{3}{W}",
      "name": "United Battlefront",
      "index": 1,
      "action": "cast",
      "id": "p9"
    },
    {
      "mana_cost": "{3}{W}",
      "name": "United Battlefront",
      "index": 2,
      "action": "cast",
      "id": "p7"
    },
    {
      "mana_cost": "{U}",
      "name": "Three Steps Ahead",
      "index": 3,
      "action": "cast",
      "id": "p25"
    },
    {
      "mana_cost": "{2}{W}{W}",
      "name": "Day of Judgment",
      "index": 4,
      "action": "cast",
      "id": "p26"
    },
    {
      "name": "Island",
      "index": 5,
      "action": "land",
      "id": "p4"
    },
    {
      "name": "Plains",
      "index": 6,
      "action": "land",
      "id": "p5"
    },
    {
      "mana_cost": "{1}{W}{W}",
      "name": "Pinnacle Starcage",
      "index": 7,
      "action": "cast",
      "id": "p8"
    },
    {
      "mana_cost": "{2}{U}",
      "name": "Repurposing Bay",
      "index": 8,
      "action": "cast",
      "id": "p31"
    }
  ]
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_CHOOSE_ABILITY",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_CHOOSE_ABILITY. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_1"
}

{
  "phase": "Precombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 19,
  "stack": [
    {
      "name": "United Battlefront",
      "rules": [
        "Look at the top seven cards of your library. You may put up to two noncreature, nonland permanent cards with mana value 3 or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order."
      ],
      "id": "p32"
    }
  ],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 6,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": true,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p27"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 41,
      "life": 18
    },
    {
      "hand_size": 7,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": true,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": true,
          "name": "Plains",
          "id": "p15"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 44,
      "life": 18,
      "hand": [
        {
          "name": "Island",
          "is_land": true,
          "id": "p4"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25"
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26"
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Repurposing Bay",
          "id": "p31"
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 5
}

{
  "phase": "Precombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 19,
  "stack": [
    {
      "name": "United Battlefront",
      "rules": [
        "Look at the top seven cards of your library. You may put up to two noncreature, nonland permanent cards with mana value 3 or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order."
      ],
      "id": "p32"
    }
  ],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 6,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": true,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p27"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 41,
      "life": 18
    },
    {
      "hand_size": 7,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": true,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": true,
          "name": "Plains",
          "id": "p15"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 44,
      "life": 18,
      "hand": [
        {
          "name": "Island",
          "is_land": true,
          "id": "p4"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25"
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26"
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Repurposing Bay",
          "id": "p31"
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 5
}

{
  "action_type": "GAME_TARGET",
  "players": "Gem3P Proud(18hp), GPT5n Contra(you,18hp)",
  "stop_reason": "non_priority_action",
  "response_type": "index",
  "can_cancel": true,
  "message": "Select noncreature, nonland permanent cards with mana value 3 or less (selected 0 of 2) (to put onto the battlefield)",
  "required": false,
  "action_pending": true,
  "actions_passed": 0,
  "land_drops_used": 0,
  "context": "T5 Precombat Main/Precombat Main (GPT5n Contra) YOUR_MAIN",
  "respond_with": "id=\"pN\" or index=N, or answer=false to cancel",
  "choices": [
    {
      "name": "Perilous Snare",
      "target_type": "card",
      "index": 0,
      "id": "p33"
    },
    {
      "name": "Perilous Snare",
      "target_type": "card",
      "index": 1,
      "id": "p34"
    },
    {
      "name": "Perilous Snare",
      "target_type": "card",
      "index": 2,
      "id": "p35"
    }
  ]
}

{
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(you,18hp), GPT5n Contra(18hp)",
  "stop_reason": "playable_cards",
  "response_type": "select",
  "untapped_lands": 5,
  "message": "Play spells and abilities",
  "action_pending": true,
  "actions_passed": 1,
  "land_drops_used": 0,
  "has_playable_cards": true,
  "context": "T6 Precombat Main/Precombat Main (Gem3P Proud) YOUR_MAIN",
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "choices": [
    {
      "mana_cost": "{R}",
      "name": "Burst Lightning",
      "index": 0,
      "action": "cast",
      "id": "p3"
    },
    {
      "mana_cost": "{U}",
      "name": "Boomerang Basics",
      "index": 1,
      "action": "cast",
      "id": "p33"
    },
    {
      "mana_cost": "{U}",
      "name": "Opt",
      "index": 2,
      "action": "cast",
      "id": "p6"
    },
    {
      "mana_cost": "{R}",
      "name": "Wild Ride",
      "index": 3,
      "action": "cast",
      "id": "p37"
    },
    {
      "mana_cost": "{R}",
      "name": "Burst Lightning",
      "index": 4,
      "action": "cast",
      "id": "p20"
    },
    {
      "mana_cost": "{U}",
      "name": "Opt",
      "index": 5,
      "action": "cast",
      "id": "p36"
    }
  ]
}

{
  "cursor": 18767,
  "since_player": "Gem3P Proud",
  "log": "Gem3P Proud turn 5 (18 - 18)\nGPT5n Contra draws a card\nGPT5n Contra casts United Battlefront from hand\nGPT5n Contra puts a card from library to the bottom of their library (source: United Battlefront)\nGPT5n Contra puts a card from library to the bottom of their library (source: United Battlefront)\nGPT5n Contra puts a card from library to the bottom of their library (source: United Battlefront)\nGPT5n Contra puts a card from library to the bottom of their library (source: United Battlefront)\nGPT5n Contra puts a card from library to the bottom of their library (source: United Battlefront)\nGPT5n Contra puts a card from library to the bottom of their library (source: United Battlefront)\nGPT5n Contra puts United Battlefront from stack into their graveyard\nGPT5n Contra puts a card from library to the bottom of their library (source: United Battlefront)\nGPT5n Contra skip attack\nGPT5n Contra turn 5 (18 - 18)\nGem3P Proud draws a card\nGem3P Proud casts Opt from hand\nGem3P Proud - Ability triggers: Otter Token - Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)\nGem3P Proud scries 1 (source: Opt)\nGem3P Proud puts a card from library to the top of their library (source: Opt)\nGem3P Proud draws a card\nGem3P Proud puts Opt from stack into their graveyard\nGem3P Proud attacks GPT5n Contra with 1 creature\nGem3P Proud casts Opt from hand\nGem3P Proud - Ability triggers: Otter Token - Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)\nGem3P Proud scries 1 (source: Opt)\nGem3P Proud puts a card from library to the bottom of their library (source: Opt)\nGem3P Proud draws a card\nGem3P Proud puts Opt from stack into their graveyard\nGem3P Proud casts Burst Lightning targeting GPT5n Contra from hand\nGem3P Proud - Ability triggers: Otter Token - Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)\nGem3P Proud casts Burst Lightning targeting GPT5n Contra from hand\nGem3P Proud - Ability triggers: Otter Token - Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)\nGPT5n Contra loses 2 life from Burst Lightning\nGem3P Proud puts Burst Lightning from stack into their graveyard\nGPT5n Contra loses 2 life from Burst Lightning\nGem3P Proud puts Burst Lightning from stack into their graveyard\nAttacker: Otter Token (5/5) unblocked\n[Chat] Gem3P Proud: Prowess triggers stacking up! Boom boom.\nGPT5n Contra loses 5 life at combat from Otter Token\nGem3P Proud plays Riverpyre Verge\nGem3P Proud puts Riverpyre Verge from hand onto the Battlefield",
  "since_turn": 5,
  "truncated": false,
  "total_length": 18767
}

{
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(18hp), GPT5n Contra(you,9hp)",
  "stop_reason": "playable_cards",
  "response_type": "select",
  "untapped_lands": 4,
  "message": "Play spells and abilities",
  "action_pending": true,
  "actions_passed": 10,
  "land_drops_used": 0,
  "has_playable_cards": true,
  "context": "T6 Precombat Main/Precombat Main (GPT5n Contra) YOUR_MAIN",
  "recent_chat": [
    "Gem3P Proud: Prowess triggers stacking up! Boom boom."
  ],
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "choices": [
    {
      "mana_cost": "{2}{U}",
      "name": "Simulacrum Synthesizer",
      "index": 0,
      "action": "cast",
      "id": "p36"
    },
    {
      "name": "Fomori Vault",
      "index": 1,
      "action": "activate",
      "playable_abilities": [
        "{3}, {T}, Discard a card: Look at the top X cards..."
      ],
      "id": "p2"
    },
    {
      "mana_cost": "{3}{W}",
      "name": "United Battlefront",
      "index": 2,
      "action": "cast",
      "id": "p7"
    },
    {
      "mana_cost": "{U}",
      "name": "Three Steps Ahead",
      "index": 3,
      "action": "cast",
      "id": "p25"
    },
    {
      "mana_cost": "{2}{W}{W}",
      "name": "Day of Judgment",
      "index": 4,
      "action": "cast",
      "id": "p26"
    },
    {
      "name": "Island",
      "index": 5,
      "action": "land",
      "id": "p4"
    },
    {
      "name": "Plains",
      "index": 6,
      "action": "land",
      "id": "p5"
    },
    {
      "mana_cost": "{1}{W}{W}",
      "name": "Pinnacle Starcage",
      "index": 7,
      "action": "cast",
      "id": "p8"
    },
    {
      "mana_cost": "{2}{U}",
      "name": "Repurposing Bay",
      "index": 8,
      "action": "cast",
      "id": "p31"
    }
  ]
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_CHOOSE_ABILITY",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_CHOOSE_ABILITY. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_0",
  "warning": "Both id and index provided; used id=p36, ignored index=0"
}

{
  "phase": "Precombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 21,
  "stack": [
    {
      "name": "Simulacrum Synthesizer",
      "rules": [
        "When {this} enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)",
        "Whenever another artifact you control with mana value 3 or greater enters, create a 0/0 colorless Construct artifact creature token with \"This token gets +1/+1 for each artifact you control.\""
      ],
      "id": "p43"
    }
  ],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 3,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        },
        {
          "name": "Opt",
          "id": "p39"
        },
        {
          "name": "Opt",
          "id": "p40"
        },
        {
          "name": "Burst Lightning",
          "id": "p41"
        },
        {
          "name": "Burst Lightning",
          "id": "p42"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": true,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p27"
        },
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p37"
        },
        {
          "tapped": false,
          "name": "Slickshot Show-Off",
          "id": "p38",
          "power": "1",
          "toughness": "2"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 38,
      "life": 18
    },
    {
      "hand_size": 7,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        },
        {
          "name": "United Battlefront",
          "id": "p9"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": false,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": true,
          "name": "Plains",
          "id": "p15"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 43,
      "life": 9,
      "hand": [
        {
          "name": "Island",
          "is_land": true,
          "id": "p4"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25",
          "playable": true
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26"
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Repurposing Bay",
          "id": "p31"
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 6
}

{
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(18hp), GPT5n Contra(you,9hp)",
  "stop_reason": "pending_action_from_choose_action",
  "response_type": "select",
  "untapped_lands": 1,
  "message": "Play instants and activated abilities",
  "action_pending": true,
  "actions_passed": 0,
  "land_drops_used": 0,
  "context": "T6 Precombat Main/Precombat Main (GPT5n Contra) YOUR_MAIN",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "choices": [
    {
      "mana_cost": "{U}",
      "name": "Three Steps Ahead",
      "index": 0,
      "action": "cast",
      "id": "p25"
    }
  ]
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_CHOOSE_ABILITY",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_CHOOSE_ABILITY. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_0"
}

{
  "phase": "Precombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 23,
  "stack": [
    {
      "name": "Simulacrum Synthesizer",
      "rules": [
        "When {this} enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)",
        "Whenever another artifact you control with mana value 3 or greater enters, create a 0/0 colorless Construct artifact creature token with \"This token gets +1/+1 for each artifact you control.\""
      ],
      "id": "p43"
    }
  ],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 3,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        },
        {
          "name": "Opt",
          "id": "p39"
        },
        {
          "name": "Opt",
          "id": "p40"
        },
        {
          "name": "Burst Lightning",
          "id": "p41"
        },
        {
          "name": "Burst Lightning",
          "id": "p42"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": true,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p27"
        },
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p37"
        },
        {
          "tapped": false,
          "name": "Slickshot Show-Off",
          "id": "p38",
          "power": "1",
          "toughness": "2"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 38,
      "life": 18
    },
    {
      "hand_size": 7,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        },
        {
          "name": "United Battlefront",
          "id": "p9"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": false,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": true,
          "name": "Plains",
          "id": "p15"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 43,
      "life": 9,
      "hand": [
        {
          "name": "Island",
          "is_land": true,
          "id": "p4"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25",
          "playable": true
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26"
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Repurposing Bay",
          "id": "p31"
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 6
}

{
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(18hp), GPT5n Contra(you,9hp)",
  "stop_reason": "pending_action_from_choose_action",
  "response_type": "boolean",
  "untapped_lands": 1,
  "message": "Play instants and activated abilities",
  "action_pending": true,
  "actions_passed": 0,
  "land_drops_used": 0,
  "context": "T6 Precombat Main/Precombat Main (GPT5n Contra) YOUR_MAIN",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "recent_chat": [
    "[System] Spell cancelled — not enough mana to complete payment."
  ],
  "respond_with": "answer=true (confirm) or answer=false (pass)"
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "confirmed"
}

{
  "phase": "Precombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 24,
  "stack": [
    {
      "name": "Ability",
      "rules": [
        "When Simulacrum Synthesizer enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)"
      ],
      "id": "p45"
    }
  ],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 3,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        },
        {
          "name": "Opt",
          "id": "p39"
        },
        {
          "name": "Opt",
          "id": "p40"
        },
        {
          "name": "Burst Lightning",
          "id": "p41"
        },
        {
          "name": "Burst Lightning",
          "id": "p42"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": true,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p27"
        },
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p37"
        },
        {
          "tapped": false,
          "name": "Slickshot Show-Off",
          "id": "p38",
          "power": "1",
          "toughness": "2"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 38,
      "life": 18
    },
    {
      "hand_size": 7,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        },
        {
          "name": "United Battlefront",
          "id": "p9"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": false,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": true,
          "name": "Plains",
          "id": "p15"
        },
        {
          "tapped": false,
          "name": "Simulacrum Synthesizer",
          "id": "p36"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 43,
      "life": 9,
      "hand": [
        {
          "name": "Island",
          "is_land": true,
          "id": "p4"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25",
          "playable": true
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26"
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Repurposing Bay",
          "id": "p31"
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 6
}

{
  "actions_passed": 0,
  "land_drops_used": 0,
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(18hp), GPT5n Contra(you,9hp)",
  "context": "T6 Precombat Main/Precombat Main (GPT5n Contra) YOUR_MAIN",
  "stop_reason": "pending_action_from_choose_action",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "response_type": "boolean",
  "untapped_lands": 1,
  "respond_with": "answer=true (confirm) or answer=false (pass)",
  "message": "Play instants and activated abilities",
  "action_pending": true
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_TARGET",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_TARGET. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "confirmed"
}

{
  "phase": "Precombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 24,
  "stack": [
    {
      "name": "Ability",
      "rules": [
        "When Simulacrum Synthesizer enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)"
      ],
      "id": "p45"
    }
  ],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 3,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        },
        {
          "name": "Opt",
          "id": "p39"
        },
        {
          "name": "Opt",
          "id": "p40"
        },
        {
          "name": "Burst Lightning",
          "id": "p41"
        },
        {
          "name": "Burst Lightning",
          "id": "p42"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": true,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p27"
        },
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p37"
        },
        {
          "tapped": false,
          "name": "Slickshot Show-Off",
          "id": "p38",
          "power": "1",
          "toughness": "2"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 38,
      "life": 18
    },
    {
      "hand_size": 7,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        },
        {
          "name": "United Battlefront",
          "id": "p9"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": false,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": true,
          "name": "Plains",
          "id": "p15"
        },
        {
          "tapped": false,
          "name": "Simulacrum Synthesizer",
          "id": "p36"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 43,
      "life": 9,
      "hand": [
        {
          "name": "Island",
          "is_land": true,
          "id": "p4"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25",
          "playable": true
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26"
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Repurposing Bay",
          "id": "p31"
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 6
}

{
  "action_type": "GAME_TARGET",
  "players": "Gem3P Proud(18hp), GPT5n Contra(you,9hp)",
  "stop_reason": "pending_action_from_choose_action",
  "response_type": "index",
  "can_cancel": true,
  "untapped_lands": 1,
  "message": "Select cards to PUT on the BOTTOM of your library (Scry) (selected 1 of 2)",
  "required": false,
  "action_pending": true,
  "actions_passed": 0,
  "land_drops_used": 0,
  "context": "T6 Precombat Main/Precombat Main (GPT5n Contra) YOUR_MAIN",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "respond_with": "id=\"pN\" or index=N, or answer=false to cancel",
  "choices": [
    {
      "name": "Day of Judgment",
      "target_type": "card",
      "index": 0,
      "id": "p47"
    }
  ]
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_TARGET",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_TARGET. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_target_0"
}

{
  "phase": "Precombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 24,
  "stack": [
    {
      "name": "Ability",
      "rules": [
        "When Simulacrum Synthesizer enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)"
      ],
      "id": "p45"
    }
  ],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 3,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        },
        {
          "name": "Opt",
          "id": "p39"
        },
        {
          "name": "Opt",
          "id": "p40"
        },
        {
          "name": "Burst Lightning",
          "id": "p41"
        },
        {
          "name": "Burst Lightning",
          "id": "p42"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": true,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p27"
        },
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p37"
        },
        {
          "tapped": false,
          "name": "Slickshot Show-Off",
          "id": "p38",
          "power": "1",
          "toughness": "2"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 38,
      "life": 18
    },
    {
      "hand_size": 7,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        },
        {
          "name": "United Battlefront",
          "id": "p9"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": false,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": true,
          "name": "Plains",
          "id": "p15"
        },
        {
          "tapped": false,
          "name": "Simulacrum Synthesizer",
          "id": "p36"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 43,
      "life": 9,
      "hand": [
        {
          "name": "Island",
          "is_land": true,
          "id": "p4"
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25",
          "playable": true
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26"
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Repurposing Bay",
          "id": "p31"
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 6
}

{
  "action_type": "GAME_TARGET",
  "players": "Gem3P Proud(18hp), GPT5n Contra(you,9hp)",
  "stop_reason": "pending_action_from_choose_action",
  "response_type": "index",
  "can_cancel": false,
  "untapped_lands": 1,
  "message": "Select a card ORDER to put on the BOTTOM of your library (last one chosen will be bottommost)",
  "required": true,
  "action_pending": true,
  "actions_passed": 0,
  "land_drops_used": 0,
  "context": "T6 Precombat Main/Precombat Main (GPT5n Contra) YOUR_MAIN",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "respond_with": "id=\"pN\" or index=N",
  "choices": [
    {
      "name": "Hide on the Ceiling",
      "target_type": "card",
      "index": 0,
      "id": "p46"
    },
    {
      "name": "Day of Judgment",
      "target_type": "card",
      "index": 1,
      "id": "p47"
    }
  ]
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_target_1"
}

{
  "phase": "Precombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 25,
  "stack": [],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 3,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        },
        {
          "name": "Opt",
          "id": "p39"
        },
        {
          "name": "Opt",
          "id": "p40"
        },
        {
          "name": "Burst Lightning",
          "id": "p41"
        },
        {
          "name": "Burst Lightning",
          "id": "p42"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": true,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p27"
        },
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p37"
        },
        {
          "tapped": false,
          "name": "Slickshot Show-Off",
          "id": "p38",
          "power": "1",
          "toughness": "2"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 38,
      "life": 18
    },
    {
      "hand_size": 7,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        },
        {
          "name": "United Battlefront",
          "id": "p9"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": false,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": true,
          "name": "Plains",
          "id": "p15"
        },
        {
          "tapped": false,
          "name": "Simulacrum Synthesizer",
          "id": "p36"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 43,
      "life": 9,
      "hand": [
        {
          "name": "Island",
          "is_land": true,
          "id": "p4",
          "playable": true
        },
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5",
          "playable": true
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25",
          "playable": true
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26"
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Repurposing Bay",
          "id": "p31"
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 6
}

{
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(18hp), GPT5n Contra(you,9hp)",
  "stop_reason": "pending_action_from_choose_action",
  "response_type": "select",
  "untapped_lands": 1,
  "message": "Play spells and abilities",
  "action_pending": true,
  "actions_passed": 0,
  "land_drops_used": 0,
  "context": "T6 Precombat Main/Precombat Main (GPT5n Contra) YOUR_MAIN",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "choices": [
    {
      "name": "Island",
      "index": 0,
      "action": "land",
      "id": "p4"
    },
    {
      "name": "Plains",
      "index": 1,
      "action": "land",
      "id": "p5"
    }
  ]
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_0"
}

{
  "phase": "Precombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 26,
  "stack": [],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 3,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        },
        {
          "name": "Opt",
          "id": "p39"
        },
        {
          "name": "Opt",
          "id": "p40"
        },
        {
          "name": "Burst Lightning",
          "id": "p41"
        },
        {
          "name": "Burst Lightning",
          "id": "p42"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": true,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p27"
        },
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p37"
        },
        {
          "tapped": false,
          "name": "Slickshot Show-Off",
          "id": "p38",
          "power": "1",
          "toughness": "2"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 38,
      "life": 18
    },
    {
      "hand_size": 6,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        },
        {
          "name": "United Battlefront",
          "id": "p9"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": false,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": true,
          "name": "Plains",
          "id": "p15"
        },
        {
          "tapped": false,
          "name": "Simulacrum Synthesizer",
          "id": "p36"
        },
        {
          "tapped": false,
          "name": "Island",
          "id": "p4"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 43,
      "life": 9,
      "hand": [
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25",
          "playable": true
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26"
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Repurposing Bay",
          "id": "p31"
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 6
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "confirmed"
}

{
  "phase": "Combat",
  "priority_player": "GPT5n Contra",
  "cursor": 27,
  "stack": [],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 3,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        },
        {
          "name": "Opt",
          "id": "p39"
        },
        {
          "name": "Opt",
          "id": "p40"
        },
        {
          "name": "Burst Lightning",
          "id": "p41"
        },
        {
          "name": "Burst Lightning",
          "id": "p42"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": true,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p27"
        },
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p37"
        },
        {
          "tapped": false,
          "name": "Slickshot Show-Off",
          "id": "p38",
          "power": "1",
          "toughness": "2"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 38,
      "life": 18
    },
    {
      "hand_size": 6,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        },
        {
          "name": "United Battlefront",
          "id": "p9"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": false,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": true,
          "name": "Plains",
          "id": "p15"
        },
        {
          "tapped": false,
          "name": "Simulacrum Synthesizer",
          "id": "p36"
        },
        {
          "tapped": false,
          "name": "Island",
          "id": "p4"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 43,
      "life": 9,
      "hand": [
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25",
          "playable": true
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26"
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Repurposing Bay",
          "id": "p31"
        }
      ]
    }
  ],
  "available": true,
  "step": "Declare Attackers",
  "turn": 6
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "confirmed",
  "warning": "Ignored attackers parameter (not in declare_attackers phase)"
}

{
  "phase": "Postcombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 28,
  "stack": [],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 3,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        },
        {
          "name": "Opt",
          "id": "p39"
        },
        {
          "name": "Opt",
          "id": "p40"
        },
        {
          "name": "Burst Lightning",
          "id": "p41"
        },
        {
          "name": "Burst Lightning",
          "id": "p42"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": true,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p27"
        },
        {
          "tapped": true,
          "name": "Riverpyre Verge",
          "id": "p37"
        },
        {
          "tapped": false,
          "name": "Slickshot Show-Off",
          "id": "p38",
          "power": "1",
          "toughness": "2"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 38,
      "life": 18
    },
    {
      "hand_size": 6,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        },
        {
          "name": "United Battlefront",
          "id": "p9"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": false,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": true,
          "name": "Plains",
          "id": "p15"
        },
        {
          "tapped": false,
          "name": "Simulacrum Synthesizer",
          "id": "p36"
        },
        {
          "tapped": false,
          "name": "Island",
          "id": "p4"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 43,
      "life": 9,
      "hand": [
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25",
          "playable": true
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26"
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Repurposing Bay",
          "id": "p31"
        }
      ]
    }
  ],
  "available": true,
  "step": "Postcombat Main",
  "turn": 6
}

{
  "actions_passed": 0,
  "land_drops_used": 1,
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(18hp), GPT5n Contra(you,9hp)",
  "context": "T6 Postcombat Main/Postcombat Main (GPT5n Contra) YOUR_MAIN",
  "stop_reason": "pending_action_from_choose_action",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "response_type": "boolean",
  "untapped_lands": 2,
  "respond_with": "answer=true (confirm) or answer=false (pass)",
  "message": "Play spells and abilities",
  "action_pending": true
}

{
  "retryable": true,
  "success": false,
  "warning": "Both id and index provided; used id=p25, ignored index=0",
  "error_code": "invalid_choice",
  "error": "Object p25 not found in current choices"
}

{
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(you,18hp), GPT5n Contra(9hp)",
  "stop_reason": "playable_cards",
  "response_type": "select",
  "untapped_lands": 6,
  "message": "Play spells and abilities",
  "action_pending": true,
  "actions_passed": 9,
  "land_drops_used": 0,
  "has_playable_cards": true,
  "context": "T7 Precombat Main/Precombat Main (Gem3P Proud) YOUR_MAIN",
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "choices": [
    {
      "mana_cost": "{R}",
      "name": "Shock",
      "index": 0,
      "action": "cast",
      "id": "p48"
    },
    {
      "mana_cost": "{U}",
      "name": "Into the Flood Maw",
      "index": 1,
      "action": "cast",
      "id": "p28"
    },
    {
      "mana_cost": "{U}",
      "name": "Boomerang Basics",
      "index": 2,
      "action": "cast",
      "id": "p33"
    },
    {
      "mana_cost": "{R}",
      "name": "Wild Ride",
      "index": 3,
      "action": "cast",
      "id": "p37"
    },
    {
      "name": "Stormchaser's Talent",
      "index": 4,
      "action": "activate",
      "playable_abilities": [
        "{5}{U}: Level 3"
      ],
      "id": "p18"
    }
  ]
}

{
  "phase": "Precombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 29,
  "stack": [
    {
      "name": "Ability",
      "rules": [
        "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
      ],
      "id": "p48"
    },
    {
      "name": "Ability",
      "rules": [
        "Whenever you cast a noncreature spell, Slickshot Show-Off gets +2/+0 until end of turn."
      ],
      "id": "p49"
    },
    {
      "target_count": 1,
      "name": "Shock",
      "rules": [
        "{this} deals 2 damage to any target."
      ],
      "id": "p50"
    }
  ],
  "active_player": "Gem3P Proud",
  "players": [
    {
      "hand_size": 3,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        },
        {
          "name": "Opt",
          "id": "p39"
        },
        {
          "name": "Opt",
          "id": "p40"
        },
        {
          "name": "Burst Lightning",
          "id": "p41"
        },
        {
          "name": "Burst Lightning",
          "id": "p42"
        }
      ],
      "is_active": true,
      "is_you": false,
      "battlefield": [
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": false,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": false,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": false,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        },
        {
          "tapped": false,
          "name": "Steam Vents",
          "id": "p27"
        },
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p37"
        },
        {
          "tapped": false,
          "name": "Slickshot Show-Off",
          "id": "p38",
          "power": "1",
          "toughness": "2"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 37,
      "life": 18
    },
    {
      "hand_size": 6,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        },
        {
          "name": "United Battlefront",
          "id": "p9"
        }
      ],
      "is_active": false,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": false,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": true,
          "name": "Plains",
          "id": "p15"
        },
        {
          "tapped": false,
          "name": "Simulacrum Synthesizer",
          "id": "p36"
        },
        {
          "tapped": false,
          "name": "Island",
          "id": "p4"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 43,
      "life": 9,
      "hand": [
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25",
          "playable": true
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26"
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Repurposing Bay",
          "id": "p31"
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 7
}

{
  "phase": "Precombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 29,
  "stack": [
    {
      "name": "Ability",
      "rules": [
        "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
      ],
      "id": "p48"
    },
    {
      "name": "Ability",
      "rules": [
        "Whenever you cast a noncreature spell, Slickshot Show-Off gets +2/+0 until end of turn."
      ],
      "id": "p49"
    },
    {
      "target_count": 1,
      "name": "Shock",
      "rules": [
        "{this} deals 2 damage to any target."
      ],
      "id": "p50"
    }
  ],
  "active_player": "Gem3P Proud",
  "players": [
    {
      "hand_size": 3,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        },
        {
          "name": "Opt",
          "id": "p39"
        },
        {
          "name": "Opt",
          "id": "p40"
        },
        {
          "name": "Burst Lightning",
          "id": "p41"
        },
        {
          "name": "Burst Lightning",
          "id": "p42"
        }
      ],
      "is_active": true,
      "is_you": false,
      "battlefield": [
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": false,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": false,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": false,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        },
        {
          "tapped": false,
          "name": "Steam Vents",
          "id": "p27"
        },
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p37"
        },
        {
          "tapped": false,
          "name": "Slickshot Show-Off",
          "id": "p38",
          "power": "1",
          "toughness": "2"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 37,
      "life": 18
    },
    {
      "hand_size": 6,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        },
        {
          "name": "United Battlefront",
          "id": "p9"
        }
      ],
      "is_active": false,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": false,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": true,
          "name": "Plains",
          "id": "p15"
        },
        {
          "tapped": false,
          "name": "Simulacrum Synthesizer",
          "id": "p36"
        },
        {
          "tapped": false,
          "name": "Island",
          "id": "p4"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 43,
      "life": 9,
      "hand": [
        {
          "name": "Plains",
          "is_land": true,
          "id": "p5"
        },
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25",
          "playable": true
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26"
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Repurposing Bay",
          "id": "p31"
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 7
}

{
  "action_pending": false
}

{
  "retryable": true,
  "success": false,
  "warning": "Both id and index provided; used id=p25, ignored index=0",
  "error_code": "invalid_choice",
  "recent_chat": [
    "[System] Spell cancelled — not enough mana to complete payment."
  ],
  "error": "Object p25 not found in current choices"
}

{
  "combat_phase": "attackers",
  "actions_passed": 1,
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(you,18hp), GPT5n Contra(7hp)",
  "context": "T7 Combat/Declare Attackers (Gem3P Proud)",
  "stop_reason": "combat",
  "response_type": "select",
  "untapped_lands": 5,
  "respond_with": "attackers=[\"p1\",...] or answer=true (confirm) or answer=false (skip)",
  "message": "Select attackers",
  "choices": [
    {
      "name": "Otter Token",
      "index": 0,
      "choice_type": "attacker",
      "id": "p25",
      "power": "2",
      "toughness": "2"
    },
    {
      "name": "Slickshot Show-Off",
      "index": 1,
      "choice_type": "attacker",
      "id": "p40",
      "power": "3",
      "toughness": "2"
    },
    {
      "name": "All attack",
      "index": 2,
      "choice_type": "special",
      "id": "all"
    }
  ],
  "action_pending": true
}

{
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(18hp), GPT5n Contra(you,7hp)",
  "stop_reason": "playable_cards",
  "response_type": "select",
  "untapped_lands": 5,
  "message": "Play spells and abilities",
  "action_pending": true,
  "actions_passed": 10,
  "land_drops_used": 0,
  "has_playable_cards": true,
  "context": "T7 Precombat Main/Precombat Main (GPT5n Contra) YOUR_MAIN",
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "choices": [
    {
      "mana_cost": "{X}{U}",
      "name": "Hide on the Ceiling",
      "index": 0,
      "action": "cast",
      "id": "p51"
    },
    {
      "mana_cost": "{3}{W}",
      "name": "United Battlefront",
      "index": 1,
      "action": "cast",
      "id": "p7"
    },
    {
      "mana_cost": "{U}",
      "name": "Three Steps Ahead",
      "index": 2,
      "action": "cast",
      "id": "p25"
    },
    {
      "mana_cost": "{1}{W}{W}",
      "name": "Pinnacle Starcage",
      "index": 3,
      "action": "cast",
      "id": "p8"
    },
    {
      "mana_cost": "{2}{U}",
      "name": "Repurposing Bay",
      "index": 4,
      "action": "cast",
      "id": "p31"
    },
    {
      "mana_cost": "{2}{U}",
      "name": "Simulacrum Synthesizer",
      "index": 5,
      "action": "cast",
      "id": "p36"
    },
    {
      "name": "Fomori Vault",
      "index": 6,
      "action": "activate",
      "playable_abilities": [
        "{3}, {T}, Discard a card: Look at the top X cards..."
      ],
      "id": "p2"
    },
    {
      "mana_cost": "{2}{W}{W}",
      "name": "Day of Judgment",
      "index": 7,
      "action": "cast",
      "id": "p26"
    },
    {
      "name": "Plains",
      "index": 8,
      "action": "land",
      "id": "p5"
    }
  ]
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_8"
}

{
  "phase": "Precombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 30,
  "stack": [],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 1,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        },
        {
          "name": "Opt",
          "id": "p39"
        },
        {
          "name": "Opt",
          "id": "p40"
        },
        {
          "name": "Burst Lightning",
          "id": "p41"
        },
        {
          "name": "Burst Lightning",
          "id": "p42"
        },
        {
          "name": "Shock",
          "id": "p52"
        },
        {
          "name": "Wild Ride",
          "id": "p53"
        },
        {
          "name": "Boomerang Basics",
          "id": "p54"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": false,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": false,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p27"
        },
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p37"
        },
        {
          "tapped": false,
          "name": "Slickshot Show-Off",
          "id": "p38",
          "power": "1",
          "toughness": "2"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 37,
      "life": 18
    },
    {
      "hand_size": 7,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        },
        {
          "name": "United Battlefront",
          "id": "p9"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": false,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": false,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": false,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": false,
          "name": "Plains",
          "id": "p15"
        },
        {
          "tapped": false,
          "name": "Island",
          "id": "p4"
        },
        {
          "tapped": false,
          "name": "Plains",
          "id": "p5"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 42,
      "life": 7,
      "hand": [
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7",
          "playable": true
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8",
          "playable": true
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25",
          "playable": true
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26",
          "playable": true
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Repurposing Bay",
          "id": "p31",
          "playable": true
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Simulacrum Synthesizer",
          "id": "p36",
          "playable": true
        },
        {
          "mana_cost": "{X}{U}",
          "name": "Hide on the Ceiling",
          "id": "p51",
          "playable": true
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 7
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_GET_AMOUNT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_GET_AMOUNT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_0",
  "warning": "Both id and index provided; used id=p51, ignored index=0"
}

{
  "phase": "Precombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 32,
  "stack": [
    {
      "name": "Hide on the Ceiling",
      "rules": [
        "Exile X target artifacts and/or creatures. Return the exiled cards to the battlefield under their owners' control at the beginning of the next end step."
      ],
      "id": "p55"
    }
  ],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 1,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        },
        {
          "name": "Opt",
          "id": "p39"
        },
        {
          "name": "Opt",
          "id": "p40"
        },
        {
          "name": "Burst Lightning",
          "id": "p41"
        },
        {
          "name": "Burst Lightning",
          "id": "p42"
        },
        {
          "name": "Shock",
          "id": "p52"
        },
        {
          "name": "Wild Ride",
          "id": "p53"
        },
        {
          "name": "Boomerang Basics",
          "id": "p54"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": false,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": false,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p27"
        },
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p37"
        },
        {
          "tapped": false,
          "name": "Slickshot Show-Off",
          "id": "p38",
          "power": "1",
          "toughness": "2"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 37,
      "life": 18
    },
    {
      "hand_size": 6,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        },
        {
          "name": "United Battlefront",
          "id": "p9"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": true,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": true,
          "name": "Plains",
          "id": "p15"
        },
        {
          "tapped": false,
          "name": "Island",
          "id": "p4"
        },
        {
          "tapped": false,
          "name": "Plains",
          "id": "p5"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 42,
      "mana_pool": {
        "C": 1,
        "W": 2
      },
      "life": 7,
      "hand": [
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25",
          "playable": true
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26"
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Repurposing Bay",
          "id": "p31"
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Simulacrum Synthesizer",
          "id": "p36"
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 7
}

{
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(18hp), GPT5n Contra(you,7hp)",
  "stop_reason": "pending_action_from_choose_action",
  "response_type": "select",
  "untapped_lands": 2,
  "message": "Play instants and activated abilities",
  "mana_pool": {
    "C": 1,
    "W": 2
  },
  "action_pending": true,
  "actions_passed": 0,
  "land_drops_used": 1,
  "context": "T7 Precombat Main/Precombat Main (GPT5n Contra) YOUR_MAIN",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "choices": [
    {
      "mana_cost": "{U}",
      "name": "Three Steps Ahead",
      "index": 0,
      "action": "cast",
      "id": "p25"
    }
  ]
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_CHOOSE_ABILITY",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_CHOOSE_ABILITY. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_0"
}

{
  "phase": "Precombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 35,
  "stack": [
    {
      "name": "Hide on the Ceiling",
      "rules": [
        "Exile X target artifacts and/or creatures. Return the exiled cards to the battlefield under their owners' control at the beginning of the next end step."
      ],
      "id": "p55"
    }
  ],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 1,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        },
        {
          "name": "Opt",
          "id": "p39"
        },
        {
          "name": "Opt",
          "id": "p40"
        },
        {
          "name": "Burst Lightning",
          "id": "p41"
        },
        {
          "name": "Burst Lightning",
          "id": "p42"
        },
        {
          "name": "Shock",
          "id": "p52"
        },
        {
          "name": "Wild Ride",
          "id": "p53"
        },
        {
          "name": "Boomerang Basics",
          "id": "p54"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": false,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": false,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p27"
        },
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p37"
        },
        {
          "tapped": false,
          "name": "Slickshot Show-Off",
          "id": "p38",
          "power": "1",
          "toughness": "2"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 37,
      "life": 18
    },
    {
      "hand_size": 6,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        },
        {
          "name": "United Battlefront",
          "id": "p9"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": true,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": true,
          "name": "Plains",
          "id": "p15"
        },
        {
          "tapped": false,
          "name": "Island",
          "id": "p4"
        },
        {
          "tapped": false,
          "name": "Plains",
          "id": "p5"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 42,
      "mana_pool": {
        "C": 1,
        "W": 2
      },
      "life": 7,
      "hand": [
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25",
          "playable": true
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26"
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Repurposing Bay",
          "id": "p31"
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Simulacrum Synthesizer",
          "id": "p36"
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 7
}

{
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(18hp), GPT5n Contra(you,7hp)",
  "stop_reason": "pending_action_from_choose_action",
  "response_type": "boolean",
  "untapped_lands": 2,
  "message": "Play instants and activated abilities",
  "mana_pool": {
    "C": 1,
    "W": 2
  },
  "action_pending": true,
  "actions_passed": 0,
  "land_drops_used": 1,
  "context": "T7 Precombat Main/Precombat Main (GPT5n Contra) YOUR_MAIN",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "recent_chat": [
    "[System] Spell cancelled — not enough mana to complete payment."
  ],
  "respond_with": "answer=true (confirm) or answer=false (pass)"
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_SELECT",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_SELECT. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "confirmed"
}

{
  "phase": "Precombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 36,
  "stack": [],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 1,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        },
        {
          "name": "Opt",
          "id": "p39"
        },
        {
          "name": "Opt",
          "id": "p40"
        },
        {
          "name": "Burst Lightning",
          "id": "p41"
        },
        {
          "name": "Burst Lightning",
          "id": "p42"
        },
        {
          "name": "Shock",
          "id": "p52"
        },
        {
          "name": "Wild Ride",
          "id": "p53"
        },
        {
          "name": "Boomerang Basics",
          "id": "p54"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": false,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": false,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p27"
        },
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p37"
        },
        {
          "tapped": false,
          "name": "Slickshot Show-Off",
          "id": "p38",
          "power": "1",
          "toughness": "2"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 37,
      "life": 18
    },
    {
      "hand_size": 6,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        },
        {
          "name": "United Battlefront",
          "id": "p9"
        },
        {
          "name": "Hide on the Ceiling",
          "id": "p51"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": true,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": true,
          "name": "Plains",
          "id": "p15"
        },
        {
          "tapped": false,
          "name": "Island",
          "id": "p4"
        },
        {
          "tapped": false,
          "name": "Plains",
          "id": "p5"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 42,
      "mana_pool": {
        "C": 1,
        "W": 2
      },
      "life": 7,
      "hand": [
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7",
          "playable": true
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8",
          "playable": true
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25",
          "playable": true
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26",
          "playable": true
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Repurposing Bay",
          "id": "p31",
          "playable": true
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Simulacrum Synthesizer",
          "id": "p36",
          "playable": true
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 7
}

{
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(18hp), GPT5n Contra(you,7hp)",
  "stop_reason": "pending_action_from_choose_action",
  "response_type": "select",
  "untapped_lands": 2,
  "message": "Play spells and abilities",
  "mana_pool": {
    "C": 1,
    "W": 2
  },
  "action_pending": true,
  "actions_passed": 0,
  "land_drops_used": 1,
  "context": "T7 Precombat Main/Precombat Main (GPT5n Contra) YOUR_MAIN",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "choices": [
    {
      "mana_cost": "{2}{U}",
      "name": "Simulacrum Synthesizer",
      "index": 0,
      "action": "cast",
      "id": "p36"
    },
    {
      "mana_cost": "{3}{W}",
      "name": "United Battlefront",
      "index": 1,
      "action": "cast",
      "id": "p7"
    },
    {
      "mana_cost": "{2}{W}{W}",
      "name": "Day of Judgment",
      "index": 2,
      "action": "cast",
      "id": "p26"
    },
    {
      "mana_cost": "{1}{W}{W}",
      "name": "Pinnacle Starcage",
      "index": 3,
      "action": "cast",
      "id": "p8"
    },
    {
      "mana_cost": "{2}{U}",
      "name": "Repurposing Bay",
      "index": 4,
      "action": "cast",
      "id": "p31"
    }
  ]
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_PLAY_MANA",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_PLAY_MANA. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "selected_0"
}

{
  "phase": "Precombat Main",
  "priority_player": "GPT5n Contra",
  "cursor": 38,
  "stack": [
    {
      "name": "Ability",
      "rules": [
        "When Simulacrum Synthesizer enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)"
      ],
      "id": "p56"
    }
  ],
  "active_player": "GPT5n Contra",
  "players": [
    {
      "hand_size": 1,
      "graveyard": [
        {
          "name": "Sleight of Hand",
          "id": "p12"
        },
        {
          "name": "Stock Up",
          "id": "p16"
        },
        {
          "name": "Sleight of Hand",
          "id": "p23"
        },
        {
          "name": "Opt",
          "id": "p39"
        },
        {
          "name": "Opt",
          "id": "p40"
        },
        {
          "name": "Burst Lightning",
          "id": "p41"
        },
        {
          "name": "Burst Lightning",
          "id": "p42"
        },
        {
          "name": "Shock",
          "id": "p52"
        },
        {
          "name": "Wild Ride",
          "id": "p53"
        },
        {
          "name": "Boomerang Basics",
          "id": "p54"
        }
      ],
      "is_active": false,
      "is_you": false,
      "battlefield": [
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p6"
        },
        {
          "tapped": false,
          "name": "Steam Vents",
          "id": "p11"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p13"
        },
        {
          "tapped": true,
          "name": "Spirebluff Canal",
          "id": "p20"
        },
        {
          "tapped": false,
          "name": "Stormchaser's Talent",
          "id": "p21"
        },
        {
          "tapped": false,
          "name": "Otter Token",
          "rules": [
            "Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)"
          ],
          "id": "p22",
          "power": "1",
          "toughness": "1",
          "token": true
        },
        {
          "tapped": true,
          "name": "Steam Vents",
          "id": "p27"
        },
        {
          "tapped": false,
          "name": "Riverpyre Verge",
          "id": "p37"
        },
        {
          "tapped": false,
          "name": "Slickshot Show-Off",
          "id": "p38",
          "power": "1",
          "toughness": "2"
        }
      ],
      "name": "Gem3P Proud",
      "library_size": 37,
      "life": 18
    },
    {
      "hand_size": 5,
      "graveyard": [
        {
          "name": "Floodfarm Verge",
          "id": "p10"
        },
        {
          "name": "Three Steps Ahead",
          "id": "p19"
        },
        {
          "name": "United Battlefront",
          "id": "p9"
        },
        {
          "name": "Hide on the Ceiling",
          "id": "p51"
        }
      ],
      "is_active": true,
      "is_you": true,
      "battlefield": [
        {
          "tapped": true,
          "name": "Floodfarm Verge",
          "id": "p1"
        },
        {
          "tapped": true,
          "name": "Fomori Vault",
          "id": "p2"
        },
        {
          "tapped": true,
          "name": "Temple of Enlightenment",
          "id": "p3"
        },
        {
          "tapped": true,
          "name": "Plains",
          "id": "p15"
        },
        {
          "tapped": true,
          "name": "Island",
          "id": "p4"
        },
        {
          "tapped": true,
          "name": "Plains",
          "id": "p5"
        },
        {
          "tapped": false,
          "name": "Simulacrum Synthesizer",
          "id": "p36"
        }
      ],
      "name": "GPT5n Contra",
      "library_size": 42,
      "mana_pool": {
        "C": 1,
        "W": 1
      },
      "life": 7,
      "hand": [
        {
          "mana_cost": "{3}{W}",
          "name": "United Battlefront",
          "id": "p7"
        },
        {
          "mana_cost": "{1}{W}{W}",
          "name": "Pinnacle Starcage",
          "id": "p8"
        },
        {
          "mana_cost": "{U}",
          "name": "Three Steps Ahead",
          "id": "p25"
        },
        {
          "mana_cost": "{2}{W}{W}",
          "name": "Day of Judgment",
          "id": "p26"
        },
        {
          "mana_cost": "{2}{U}",
          "name": "Repurposing Bay",
          "id": "p31"
        }
      ]
    }
  ],
  "available": true,
  "step": "Precombat Main",
  "turn": 7
}

{
  "actions_passed": 0,
  "land_drops_used": 1,
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(18hp), GPT5n Contra(you,7hp)",
  "context": "T7 Precombat Main/Precombat Main (GPT5n Contra) YOUR_MAIN",
  "stop_reason": "pending_action_from_choose_action",
  "warning": "A previous choose_action returned next_action_pending:true. Call get_action_choices or choose_action instead of pass_priority to avoid cancelling the pending action.",
  "response_type": "boolean",
  "respond_with": "answer=true (confirm) or answer=false (pass)",
  "message": "Play instants and activated abilities",
  "mana_pool": {
    "C": 1,
    "W": 1
  },
  "action_pending": true
}

{
  "next_action_pending": true,
  "next_action_type": "GAME_TARGET",
  "next_action_hint": "Call get_action_choices or choose_action to handle the pending GAME_TARGET. Do NOT call pass_priority — it would cancel the pending action.",
  "success": true,
  "action_taken": "confirmed"
}

{
  "action_type": "GAME_SELECT",
  "players": "Gem3P Proud(you,18hp), GPT5n Contra(7hp)",
  "stop_reason": "playable_cards",
  "response_type": "select",
  "untapped_lands": 6,
  "message": "Play spells and abilities",
  "action_pending": true,
  "actions_passed": 1,
  "land_drops_used": 0,
  "has_playable_cards": true,
  "context": "T8 Precombat Main/Precombat Main (Gem3P Proud) YOUR_MAIN",
  "respond_with": "id=\"pN\" or index=N to play, or answer=false to pass",
  "choices": [
    {
      "mana_cost": "{1}{R}",
      "name": "Slickshot Show-Off",
      "index": 0,
      "action": "cast",
      "id": "p60",
      "power": "1",
      "toughness": "2"
    },
    {
      "mana_cost": "{U}",
      "name": "Into the Flood Maw",
      "index": 1,
      "action": "cast",
      "id": "p28"
    },
    {
      "name": "Wild Ride",
      "index": 2,
      "action": "activate",
      "playable_abilities": [
        "Harmonize {4}{R}"
      ],
      "id": "p37"
    },
    {
      "name": "Stormchaser's Talent",
      "index": 3,
      "action": "activate",
      "playable_abilities": [
        "{5}{U}: Level 3"
      ],
      "id": "p18"
    }
  ]
}

{
  "actions_passed": 11,
  "stop_reason": "game_over",
  "action_pending": false,
  "player_dead": true
}

{
  "cursor": 30324,
  "log": "Otter Token (2/2) unblocked\nAttacker: Slickshot Show-Off (3/2) unblocked\nAttacker: Slickshot Show-Off (3/2) unblocked\nGPT5n Contra loses 3 life at combat from Slickshot Show-Off\nGPT5n Contra loses 3 life at combat from Slickshot Show-Off\nGPT5n Contra loses 2 life at combat from Otter Token\nGPT5n Contra has lost the game.\nGem3P Proud has won the game",
  "truncated": true,
  "total_length": 30324
}