Superman / Batman #51

The Man of Steel and the Dark Knight are shocked to discover little versions of themselves fighting a threat in Metropolis. But where did these tiny heroes come from? As Superman and Batman search for answers, things get worse with the arrival of the Lil' League!

Characters: Alfred Pennyworth, Batman, Bizarro, Black Canary, Black Lightning, Brainiac, Catwoman, Cyborg Superman, Doomsday, Floronic Man, Jimmy Olsen, Joker, Killer Croc, Lex Luthor, Li'l Flash, Lois Lane, Lucius Fox, Mister Mxyzptlk, Mr. Freeze, Perry White, Poison Ivy, Red Tornado, Roy Harper, Supergirl (Kara Zor-El), Superman, Tim Drake, Two-Face, Vixen, Wally West, Wonder Woman, Zatanna