From the box: Players duel to the finish while the Battle Marker determines if high or low card wins each battle. Special Action Cards add new challenges to game play so that no two games are ever the same! TacDex: Super Mario uses gameplay similar to well-known card game War, with players revealing cards simultaneously to try to claim cards owned by the opponent, but a battle marker determines whether a high or low card wins a particular battle and players each have special action cards to add new twists to the conflict.