The All-New Batman: The Brave and the Bold #6

It's a battle of wits when the Martian Manhunter challenges Batman to penetrate his baffling array of shape-shifting disguises. But when the game goes awry, can even the two heroes defeat the most unexpected menace of all?

Characters: Batman, Calendar Man, Clayface (Hagen), Diane Meade, Martian Manhunter