{
  "type": "minecraft:sequence",
  "features": [
    {
      "feature": {
        "type": "minecraft:sculk_patch",
        "amount_per_charge": 32,
        "charge_count": 10,
        "growth_rounds": 0,
        "spread_attempts": 64,
        "spread_rounds": 1
      },
      "placement": []
    },
    {
      "feature": {
        "type": "minecraft:simple_block",
        "to_place": {
          "id": "minecraft:sculk_catalyst",
          "properties": {
            "bloom": "false"
          }
        }
      },
      "placement": [
        {
          "type": "minecraft:random_chance",
          "chance": 0.5
        },
        {
          "type": "minecraft:block_predicate_filter",
          "predicate": {
            "type": "minecraft:has_sturdy_face",
            "direction": "up",
            "offset": [
              0,
              -1,
              0
            ]
          }
        }
      ]
    }
  ]
}