Mercy received the powers of teleportation, telekinesis, and levitation from gamma radiation, which was used as a treatment that cured her of a slowly fatal brain tumor that would have eventually killed her.

Mercy was the bodyguard for Emil Blonsky. She planned to stop the Hulk from getting the fuel rods, but failed. As Mercy tried to tell the Hulk about her ex-employer's current plans, Blonsky killed Mercy when he blew up the building she was when she tried to stop him.

Community content is available under CC-BY-SA unless otherwise noted.