So for example, if I wanted the Earth Creeper from Elemental creepers to spawn only in caves would that be possible with anything on 1.12.2?
If not, is there anything that I can at least do to cut certain spawns to certain biomes or terrains? (Skeletons only spawn in deserts, Pigmen can spawn in the Nether and in any "Jungle" biome or "Cherry Forest" biome)?
I'm in the midst of developing some packs here and some of the spawnrates of certain mobs is way to high for decent survival gameplay, and some mobs shouldn't spawn at all or should spawn in specific areas for a more adventurous feel. (Like Terraria kinda haha).