create-the-brass-oncerto/config/iceandfire/ice_dragon_biomes.json

{
  "biomes": [
    [
      {
        "type": "BIOME_TAG",
        "negate": false,
        "value": "forge:is_cold/overworld"
      }
    ],
    [
      {
        "type": "REGISTRY_NAME",
        "negate": false,
        "value": "byg:shattered_glacier"
      }
    ],
    [
      {
        "type": "REGISTRY_NAME",
        "negate": false,
        "value": "byg:frosted_taiga"
      }
    ],
    [
      {
        "type": "REGISTRY_NAME",
        "negate": false,
        "value": "byg:frosted_coniferous_forest"
      }
    ]
  ]
}