The assault is on! The third Yu-Gi-Oh! TRADING CARD GAME booster in the 5D's series, Crimson Crisis, introduces the new Assault Mode monsters. Synchro Monsters can be transformed to Assault Mode, making them incredible fighting forces with massive attack points and potent effects. This all new 100 card booster set will improve any Duelist's collection with new Synchro Monsters, Tuners, and new themes like the Dark "Blackwing" monsters. Duelists everywhere beware because the onslaught of Crimson Crisis is drawing near!