Batman #522 1995

Batman #522, published by DC in September 1995, features Batman tracking Killer Croc into the Louisiana Bayou. There, he confronts Swamp Thing, who has called Croc to the swamp. Swamp Thing reveals Croc's devolution into a more primal state, intending for him to live as a natural predator. This notable issue showcases a unique crossover, exploring the complex dynamic between Batman, a transformed Killer Croc, and the elemental Swamp Thing, as Batman reluctantly leaves Croc in Swamp Thing's care.