Clownface (DC)

Clownface is a supervillain from DC comics and one of several takes on the Clayface persona, twisted by Joker into an even more nightmarish monster it would become an enemy of Batman, debuting in 2015 it is one of the more recent additions to the Dark Knight's rogue gallery (which is one of the largest villain collections in Western comics).

Origins
The villain that would come to be known as Clownface originally began as a stray piece of Clayface's body that became unattached and gained enough sentience to morph itself into a mute old man.

This man was found and taken to Arkham Manor because of his unresponsiveness, Bruce Wayne who was undercover as Jack Shaw in the manor, was able to recognize the man as a portion ofClayface but avoided blowing his own cover to alert the guards.

The Joker, undercover, too, as the Arkham attendant Eric Border, shed his disguise and secretly infected this portion of Clayface with Joker Venom, morphing it into an entirely separate killing machine he called Clownface.

Powers
Clownface has superhuman strength, durability and endurance as well as a body made out of a clay like substance that essentially makes him invulnerable to physical damage. He is also able to project parts of his body and change shape so that he can take on the appearance of anyone else.