Cthulhu eye boss
Giga_M

Cthulhu eye boss adds

Renewable Fireflies
mecha_moonboy

Registers an ABM on some ground blocks that spawn fireflies if certain criteria are met.

Ocular Networks
mt-mods

Draw power from the world, and use it to power machines and tools.

Banshee
ElCeejo

Adds Banshees, a ghostly mob that haunts pine forests