Disco Death - Tower Ref

Disco Dimension facts: The Disco Dimension

Disco Death has no experiences talking to anything other than humans. If he encountered a soulless creature like a robot or an evil soul of a demon, his confidence in fighting them drops down.

Disco Death's old powers let him see souls for miles, have the ability to fly, tell when someone was going to die, be invisible, and manipulate the flow of time. Devil removed all of these for his Tower adventure. Making him feel weaker as a result. 

He can still see a human's soul if he's few feet away though. He can't read demon souls.