Yu-Gi-Oh! - Machina Fortress ( SDMM-EN001 ) - Structure Deck: Machina Mayhem - Unlimited Edition - Ultra Rare A single individual card from the Yu-Gi-Oh! trading and collectible card game (TCG/CCG). This is of Ultra Rare rarity. From the Structure Deck: Machina Mayhem set. You will receive the Unlimited Edition version of this card.