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[Card Name] Black Luster Soldier [Type] Ritual Monster [Attribute] EARTH [Sub Type] Warrior [ATK] 3000 [DEF] 2500 [Card Text] 
This monster can only be Ritual Summoned with the Ritual Spell Card, "Black Luster Ritual".
Yu-Gi-Oh! Level 8 Monsters - Yu-Gi-Oh! Card Guide
Card Text