One Piece Card Game, the trading card game based on Eiichiro Oda's long-running manga and anime, has grown into one of the more active TCG communities since its launch, drawing players who know the series as well as those who came in through the cards. Royal Blood sits among the set releases that followed the game's early expansions, and event and promo releases in the line have become a particular point of interest for collectors who enjoy tracking how the game's designs evolved across its years. These cards often mark a moment in the hobby's calendar, tied to organized play and community gatherings. Card 91 features Brook, the skeletal musician of the Straw Hat Pirates, a character whose wit and whose soul-song heart make him a fan favorite. Collectors seek him for the way his character lends itself to striking, distinctive art, and for the connection he carries to the story's most memorable scenes. For many, owning Brook is a way of keeping a favorite crewmate close to the table.