batman vs killer croc the grim knightThe Grim Knight Ripped from Batman's greatest nightmares, The Grim Knight is his world's most dangerous vigilante, unafraid to use any weapon and go to any lengths to stop those he deems worthy of death. Armed with the finest arsenal Wayne money can buy, he is now one of the deadliest Dark Knights in existence, second only to The Batman Who Laughs. Killer Croc Born with a rare mutation that made his skin green and scaly and grew his body to grotesque