minecraft_server_zombie/config/oretweaker/templates/defaults/ancient_debris.json

{
  "oreConfig": [
    {
      "ore": "minecraft:ancient_debris",
      "fillers": [
        "BASE_STONE_NETHER"
      ],
      "distribution": "TRIANGLE",
      "minY": 8,
      "maxY": 24,
      "maxVeinSize": 3,
      "spawnRate": 1.0,
      "discardChanceOnAirExposure": 1.0,
      "biomeFilters": {
        "biomeBlacklist": [],
        "biomeWhitelist": [
          "NETHER"
        ]
      },
      "replace": true
    },
    {
      "ore": "minecraft:ancient_debris",
      "fillers": [
        "BASE_STONE_NETHER"
      ],
      "distribution": "UNIFORM",
      "minY": 8,
      "maxY": 118,
      "maxVeinSize": 2,
      "spawnRate": 1.0,
      "discardChanceOnAirExposure": 1.0,
      "biomeFilters": {
        "biomeBlacklist": [],
        "biomeWhitelist": [
          "NETHER"
        ]
      },
      "replace": true
    }
  ]
}