Union Arena's One Punch Man set marked an important moment for anime trading cards in 2025, bringing Bandai's growing TCG into the mainstream collector consciousness. Store tournament promos from this era have become sought-after chase pieces, representing the intersection of competitive play and limited distribution that defines modern card collecting. Genos, the cyborg hero central to One Punch Man's narrative, appears here as a tournament winner card with artwork that captures his distinctive mechanical design. Collectors value these promotional versions for their scarcity and the prestige associated with tournament-exclusive releases, making them notable additions to any One Punch Man collection.