One Piece Illustration Box is a premium supplement line from Bandai's One Piece Card Game, built around the artwork of the series rather than around competitive play. Its volumes gather alternate illustrations, special printings, and promotional cards that reward collectors who care about the look and feel of the art itself. Volume 5 arrived in 2026 as part of a continuing run, and promo entries in these sets often become the focal point for people completing a set or tracking the line's progression across releases. Portgas.D.Ace, the fiery second commander of the Whitebeard Pirates, is one of the most beloved characters in the series, and his brother-bond with Luffy gives this card an emotional weight that many collectors respond to. The illustration captures his bold, unrestrained spirit, making it a natural choice for fans who count Ace among their favorites. Its place as card number five in the set adds to its appeal for those assembling the complete collection.