Union Arena's Attack on Titan set marked a significant moment for anime trading cards in 2025, bringing Hajime Isayama's globally celebrated series into the competitive card game space. Store Tournament Winner cards from this period represent the intersection of organized play and collectibility, rewarding skilled players while creating limited variants that appeal to both competitive participants and set collectors seeking complete collections. This Mikasa Ackermann card captures one of anime's most iconic characters in a tournament-exclusive printing. As the series' central figure and fan favorite, Mikasa appears frequently across card games, but tournament winner versions hold special appeal for those building comprehensive collections or valuing the story behind tournament-earned cards.