Overheat

{
  "data": {
    "id": "crd_01m64rkxdcberae0zt387kd1rv",
    "number": "OP01-086",
    "category": "event",
    "colors": ["blue"],
    "cost": 2,
    "life": null,
    "power": null,
    "counter": null,
    "attributes": [],
    "block_icon": "1",
    "localizations": {
      "en": {
        "name": "Overheat",
        "types": ["The Seven Warlords of the Sea", "Donquixote Pirates"],
        "effect": "[Counter] Up to 1 of your Leader or Character cards gains +4000 power during this battle. Then, return up to 1 active Character with a cost of 3 or less to the owner's hand.",
        "trigger": "[Trigger] Return up to 1 Character with a cost of 4 or less to the owner's hand."
      }
    }
  }
}