Archenemy, first released in June 2010, introduced a unique multiplayer format where one powerful player—the Archenemy—faces off against a team of opponents. The set featured oversized Scheme cards, which trigger dramatic, game-altering effects each turn for the Archenemy. Each deck was preconstructed with a villainous theme and included reprints like Blatant Thievery, Beacon of Unrest, and Terminate, designed to create epic, asymmetric battles.