Union Arena CCG: That Time I Got Reincarnated As A Slime Booster Box (UE20BT) - 16 Packs - Presale Ships 06/26/2026

The hit anime That Time I Got Reincarnated as a Slime joins UNION ARENA, arriving as the first Special Booster Pack for the English release. In Japan the content was split into Vol.1 and Vol.2, but the English edition brings them together in one large product. With nearly 200 card types featuring popular characters from Seasons 1 to 3, including Rimuru, Milim, Shizue, Shion, Benimaru, and Shuna, this is a dream item that lets players start building a variety of decks right away. There are 13 card types with brand-new illustrations made especially for UNION ARENA! Packed with irresistible content for fans, it features a wide variety of alt-art cards of must-have characters. Each card also comes with its own unique finish, giving every pack a truly special feel. A limited number of North America exclusive serial-number Action Point cards are included at an extremely rare pull rate. In addition, North America exclusive handwritten autograph AP card versions are also available, making these serial number AP cards highly collectible!