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[Card Name] Ruin, Queen of Oblivion [Type] Ritual/Effect Monster [Attribute] LIGHT [Sub Type] Fairy [ATK] 2300 [DEF] 2000 [Card Text] 
This card can only be Ritual Summoned with the Ritual Spell Card, "End of the World". If this card destroys your opponent's monster as a result of battle, it can attack once again in a row.
Yu-Gi-Oh! Level 8 Monsters - Yu-Gi-Oh! Card Guide
Card Text