inner card sleeves Dragon Shield Perfect Fit Clear – CardDig LLC they provide an extra layer of defense while giving your deck a distinct visual pop CLOSABLE INNER SLEEVES - Gamegenic

The Pokemon Center exclusive version of the card has an extra detail

Disney DSY11098190 - Disney Lorcana Chapter 1 Booster Pack SKU: DSY11098190 UPC: 4050368981714 Shipping: Calculated at Checkout Frequently bought together: Description Disney Lorcana Chapter 1 Booster Pack Unlike starter decks, booster packs contain twelve random cards from Disney Lorcana: The First Chapter

While Mystic may be more powerful than some of the others it is somewhat less unique in blue

(2) After this card is Synchro Summoned, for the rest of this turn, it gains ATK equal to the total original ATK of the Synchro Monsters used as its material

I think we all know how good Ghostly Prison is, especially in control-type matchups