{
  "feature": {
    "config": {
      "default": {
        "feature": "arboria:spikes/mesa/small",
        "placement": []
      },
      "features": [
        {
          "chance": 0.6,
          "feature": {
            "feature": "arboria:spikes/mesa/normal",
            "placement": []
          }
        }
      ]
    },
    "type": "minecraft:random_selector"
  },
  "placement": [
    {
      "chance": 3,
      "type": "minecraft:rarity_filter"
    },
    {
      "xz_spread": {
        "type": "minecraft:uniform",
        "min_inclusive": 2,
        "max_inclusive": 13
      },
      "y_spread": 0,
      "type": "minecraft:random_offset"
    },
    {
      "heightmap": "WORLD_SURFACE_WG",
      "type": "minecraft:heightmap"
    },
    {
      "predicate": {
        "predicates": [
          {
            "type": "minecraft:replaceable"
          },
          {
            "blocks": "#arboria:terracotta",
            "offset": [
              0,
              -1,
              0
            ],
            "type": "minecraft:matching_blocks"
          }
        ],
        "type": "minecraft:all_of"
      },
      "type": "minecraft:block_predicate_filter"
    },
    {
      "type": "minecraft:biome"
    }
  ]
}