Ryu Kokki across sets & languages(6)

• Gold Series: Haunted MineGLD5-EN013$0.68
• Invasion of ChaosIOC-090$0.56
• Invasion of Chaos (Worldwide English)IOC-EN090$0.54
• Legendary Collection 4: Joey's WorldLCJW-EN194—
• Speed Duel GX: Duelists of ShadowsSGX3-ENC13—
• Structure Deck: Zombie WorldSDZW-EN011$0.49

Same name, other languages or different rules text. Same-language reprints already sit in Printings above.