{
  "id": "card.system.base_field",
  "name": "Base Camp",
  "type": "Field",
  "cost": 0,
  "countdown": 3,
  "tags": ["field", "supply", "countdown"],
  "effects": [],
  "triggers": [
    { "when": "TurnStart", "effects": [{ "op": "GenerateEnergy", "amount": 1 }] }
  ]
}