Yu-Gi-Oh! - Slate Warrior (WC4-003) - World Championship 2004 GBA Promo - Promo Edition - Secret Rare A single individual card from the Yu-Gi-Oh! trading and collectible card game (TCG/CCG). This is of Secret Rare rarity. From the World Championship 2004 GBA Promo set. You will receive the Promo Edition version of this card.