District Attorney Harvey Dent was one of Batman's strongest allies in Gotham City, until a criminal threw acid in Dent's face, hideously scarring him. The wounds fractured his psyche, and he was reborn Two-Face, a schizoid criminal mastermind obsessed with duality. His former good-luck charm, a "two-headed" trick silver dollar, was damaged on one side in the attack, and Dent has seized on it as a reflection of his half-scarred visage. He flips it to decide the fates of his victims. Two-Face is thriving in Arkham City, rallying inmates to join his gang using tried and true campaign tactics.
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Batman: Arkham City is set to be released this Fall.