Crystal biome

"Making the Hallow crystallized!"

The is a Supermode underground biome that only generate below the Underground Hallow after Moon Lord is defeated for the first time. when it reach the surface level, it stop spreading.

Enemies

 * Cryslime
 * Crystalant Bat
 * Quartz Elemental
 * Crystal Golem
 * Quartz Crawler
 * Crystal Archer
 * Shard Serpent
 * Crystal Trap
 * Crystal Mimic (rare)

Terrain Drops

 * Crystal Shard
 * Crystone
 * Crystallized Sand Block
 * Crystallites