Shadow Forests
Spawns: Wither and Non Wither Skeleton, Floating Skulls
Mysterious Forests
Spawns: Peaceful animals and House and Tree Creepers
Petrified Abyssals
Spawns: Silbat, Ravagers, scorpion, silverfish and iron ore bug
Obsidian Plains
Spawns: Mimics
Blazing Terras
Spawns: Blazes