Heath ledger Joker

The joker is still one of the biggest threats to batman and Arkham today With his latest appearance being Suicide squad. was responsible for the "death" of robin and the crippling of bat girl in the killing joke, and killing her unborn child. He also has taken down super man in the universe were he took Mister Mxyzptlk's powers of reality warping to put super man in the Arkham insane asylum which put joker in super mans place.

powers: Skill in almost all weapons, reality warping( if powerd up), high pain tolerance to the point were he enjoys pain. Access to vehicles

age:unknown 

weakness: human weakness likes bullets and knives, etc.

Current kill count: estimated 22,000 people are dead at his hand

Cause of death(injustice): Punched through stomach by an enraged superman after nuking the city