Mystique (Marvel Disk Wars: The Avengers)

Mystique, is a shapeshifting mutant supervillain.

Biography
Mystique was hired by to steal the DISKs and give them to. She disguised as and got the DISKS containing, , ,  and , but after she handed them to Crossbones, he betrayed her and knocked her out to be found by the authorities.

Powers and Abilities
Mystique can shapeshift into anyone she chooses, even matching their voices.