Yamakaji appears in the One Piece Japanese trading card game as part of the Op02 Paramount War set, catalogued as card #116 with an Unknown rarity. Collectors will find it relevant for completing set runs or studying less-documented printings within the series. The card currently shows a market value of $0.00, indicating no recent recorded sales or listings at established marketplaces. Its status makes it more of a reference piece for set completeness than a tracked high-demand collectible.