ancient_debris_huge.json

{
    "config": {
        "targets": [
            {
                "target": {
                    "tag": "minecraft:base_stone_overworld",
                    "predicate_type": "minecraft:tag_match"
                },
                "state": {
                    "Name": "minecraft:ancient_debris"
                }
            }
        ],
        "size": 10,
        "discard_chance_on_air_exposure": 0.0
    },
    "type": "minecraft:scattered_ore"
}

netherite_common.json

{
  "feature": "biometweaker:ancient_debris_huge",
  "placement": [
    {
      "count": 256,
      "type": "minecraft:count"
    },
    {
      "type": "minecraft:in_square"
    },
    {
      "height": {
        "min_inclusive": {
          "absolute": 0
        },
        "max_inclusive": {
          "absolute": 384
        },
        "type": "minecraft:trapezoid"
      },
      "type": "minecraft:height_range"
    },
    {
      "type": "minecraft:biome"
    }
  ]
}