Replication Cell is a cool card, but what unit would you want to play one per turn for the rest of the game? How about - a DEADLY Black Sky Harbinger! That's right, Replication Cell keeps any battle skills that were applied to the copied unit. If wiping the opponent's board every turn for the rest of the game doesn't do it for you, try playing unlimited copies of Severin, the Mad Mage - this is a unit whose value goes up and up the more copies you have. Overall this is some lovely jank, and who knows it might even be good.