ACE SPEC cards are back and more colorful than ever! This powerful class of Trainer cards was first released in 2012 as part of the Black & White—Boundaries Crossed expansion, and they still see play in the Expanded format today. Now, Trainers can look forward to wielding the power of brand-new ACE SPEC cards that can turn the tide of a match. Look forward to the newly defined ACE SPEC rarity, Ancient and Future ACE SPEC cards, and even the return of a classic ACE SPEC card, Master Ball. These powerful cards do come with one caveat, though—you can't have more than one ACE SPEC card in your deck.