Fan Casting Resurrection Man in Twoicide Squad

An extremely violent man who cannot be killed. If he dies, he will resurrect fully healed. In addition, with each resurrection, he gets a different additional new super-power (while whatever super-power he had previously disappears). This causes him great suffering when the team repeatedly kills him to try to get him a specific power. He seems to have a knack for dying in the most violent, horrifically painful ways imaginable.