Koby is a Promo card from the One Piece Trading Card Game, released as Official Event Prize - Japanese variant (#098). The card appears in the Promo set and is categorized at Official Event Prize rarity, making it primarily of interest to completionist collectors and event-focused archives. Current market value is listed at $0.00, indicating either extreme scarcity without recent sales or lack of recorded transactions. Grading or sales history is not provided, so availability and condition remai