{
  "display": {
    "icon": {
      "id": "minecraft:nether_star"
    },
    "title": {
      "translate": "mob_heads.advancement.collection.boss",
      "fallback": "Boss",
      "extra": [
        {
          "text": " "
        },
        {
          "translate": "mob_heads.heads",
          "fallback": "Heads"
        }
      ]
    },
    "description": {
      "translate": "mob_heads.advancement.collection.collect_all",
      "fallback": "Collect all",
      "extra": [
        {
          "text": " "
        },
        {
          "translate": "mob_heads.advancement.collection.boss",
          "fallback": "Boss"
        },
        {
          "text": " "
        },
        {
          "translate": "mob_heads.heads",
          "fallback": "Heads"
        }
      ]
    },
    "frame": "goal",
    "show_toast": true,
    "announce_to_chat": true
  },
  "parent": "mob_heads:collection/root",
  "criteria": {
    "elder_guardian": {
      "trigger": "minecraft:tick",
      "conditions": {
        "player": {
          "type_specific": {
            "type": "minecraft:player",
            "advancements": {
              "mob_heads:collection/boss/elder_guardian": true
            }
          }
        }
      }
    },
    "ender_dragon": {
      "trigger": "minecraft:tick",
      "conditions": {
        "player": {
          "type_specific": {
            "type": "minecraft:player",
            "advancements": {
              "mob_heads:collection/boss/ender_dragon": true
            }
          }
        }
      }
    },
    "warden": {
      "trigger": "minecraft:tick",
      "conditions": {
        "player": {
          "type_specific": {
            "type": "minecraft:player",
            "advancements": {
              "mob_heads:collection/boss/warden": true
            }
          }
        }
      }
    },
    "wither": {
      "trigger": "minecraft:tick",
      "conditions": {
        "player": {
          "type_specific": {
            "type": "minecraft:player",
            "advancements": {
              "mob_heads:collection/boss/wither": true
            }
          }
        }
      }
    },
    "wither_invulnerable": {
      "trigger": "minecraft:tick",
      "conditions": {
        "player": {
          "type_specific": {
            "type": "minecraft:player",
            "advancements": {
              "mob_heads:collection/boss/wither_invulnerable": true
            }
          }
        }
      }
    }
  }
}