Union Arena's Attack on Titan set arrived during a period of renewed collector enthusiasm for anime trading cards. Released in 2025, this set captured the enduring appeal of one of anime's most influential series, offering a comprehensive roster of characters from the franchise. The set represents the continued evolution of anime card collecting as a mainstream hobby, blending competitive gameplay mechanics with the visual appeal that draws collectors to licensed anime properties. Mikasa Ackermann stands as one of the series' most iconic characters, and this Super Rare iteration showcases her distinctive design and combat prowess. Collectors seek this card for its beautiful artwork and Mikasa's central role in the narrative—she remains a fan favorite whose cards hold consistent appeal across the collecting community.