The Man of Steel: Superman vs. the Doomsday ArmyPaperback, 1 January 2013

Thousands of aliens have targeted Earth. The MAN OF STEEL battles them in back into orbit, and opens the armor of one of the soldiers. Inside is DOOMSDAY! Superman breaks open more armor. All the soldiers are DOOMSDAY clones -- thousands and thousands of clones! One Doomsday is bad enough, but now there are infinite Doomsdays!