Giant Clam
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Real Identity: Not Applicable
Appearances: Game Over for Owlman!
Powers: Enhanced Strength
Voiced By: Not Applicable
During one of the many encounters between Batman and the Joker, the Joker created a chemical that radically enlarged a standard clam into a giant rabid beast. The battle took place in an underground Gotham cavern with Batman as its intended meal. Batman was able to overcome the beast and shrivel it. He kept the Giant Clam in a glass case as one of many Joker mementos in the Batcave.