Union Arena TCG: Attack on Titan Booster Box [UE10BT] - 16 PacksStrengthen Your Army with Union Arena TCG: Attack on Titan Booster Box! Take your Union Arena TCG deck to the next level with the Attack on Titan Booster Box! Featuring 16 packs, this expansion introduces a formidable lineup of cards inspired by the intense battles of Attack on Titan. Join Eren, Levi, and the Survey Corps as they fight for humanitys survival! This booster box includes 100 unique cards + 6 Action Point Cards, spanning multiple