One Piece Royal Blood is a 2025 expansion from the One Piece Card Game, the official trading card game built around Eiichiro Oda's long-running manga and anime. Since the game's launch, its sets have drawn a devoted following that spans longtime fans of the series and newer collectors drawn in by the cards' striking illustrations. Secret rare alternate art versions in particular have become a focal point for the hobby, because they sit at the top of a set's rarity structure and showcase artwork that departs from the standard frame. Royal Blood stands as a notable entry in the game's growing catalog. Trafalgar Law, the surgeon of Death and captain of the Heart Pirates, is one of the most popular characters in the franchise, admired for his cool composure, tactical brilliance, and the sharp, deliberate style of his fights. This alternate art interpretation gives the character a bold new composition, and many collectors seek it as a centerpiece for a Law or Heart Pirates collection, or as a favorite among the set's chase cards.