The One Piece Trading Card Game has grown into a collecting phenomenon, and tournament promotional cards represent the pinnacle of competitive play recognition. Winner Promos from official tournaments hold particular significance as they commemorate actual competitive achievement, making them distinctly different from standard retail releases. Vol. 1 of this series marks an important early chapter in the game's promotional history. Kaku, the CP9 operative and skilled swordsman, appears here in premium tournament format. Collectors pursue these promos for their exclusive status and connection to the competitive scene. The card captures a pivotal character whose role in the series resonated with players, combining competitive playability with the prestige of tournament-earned distribution.