One Piece Pillars of Strength arrived during a surge of anime trading card interest, when the hobby expanded beyond traditional sports into manga and anime properties. Released in 2023, the set captured the franchise at peak mainstream momentum, appealing to both longtime collectors and newcomers discovering the series. The set's character roster and artwork helped establish One Piece as a cornerstone property in modern card collecting. Zeff represents a key supporting character from the series, and his inclusion in this rare tier reflects his importance to the narrative. Collectors appreciate cards featuring beloved secondary characters that don't always receive mainstream attention, making Zeff a meaningful pull for fans building comprehensive character collections.