Spook - bongbongsaysbong/Nevermore GitHub Wiki
Spooks hunt players in groups. They take little to no knockback damage, relentlessly chase players, and occasionally stop to spit medium ranged acid projectiles. Only one spook will spit acid in a group.
When in the sea for enough time, spooks will transform into mirages, retaining their current health.
Spooks spawn around players who are insane. They spawn in packs on the surface of the overworld.