The Skullker

the "Skullker" would be a new undead mob exclusive to the Deep Dark, more specifically the Sculk growths. they're basically a take on a "hostile mooshroom," being that they are really just skeletons covered in~and blinded by~the sculk growths. Skullkers act like how skeletons would when de-bowed, but combined with the Warden's sound sensory powers and their enraged mechanic. Skullkers, being nothing more than blind skeletons, are just as easy to defeat as a normal skeleton~perhaps easier even, seeing as they lack their customary bow.