From pathfinder-color from space-colorus Madinus mutatus it’s just what it sounds like, it mutates creatures and eats their spirits making them go mad! Eventually it eats enough so that it rockets back into space,actionably leaving a baby space color to start the process all over again.
Oni-oriental demons that are interbreed-able with mortals-extraplanus ogrus?
Illiathid-genus squidheadus psychos?