Gem-Knight Master Diamond (Platinum Secret Rare)
EARTHFusion/Effect Monster3 "Gem-Knight" monsters Must first be Fusion Summoned. This card gains 100 ATK for each "Gem-" monster in your Graveyard. Once per turn: You can banish 1 Level 7 or lower "Gem-Knight" Fusion Monster from your Graveyard; until the End Phase, this card's name becomes that monster's, and replace this effect with that monster's original effects.
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Updated Jan 23, 2026Track Gem-Knight Master Diamond (Platinum Secret Rare) in your collection
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