Gem-Knight Master Diamond - HA07-EN059 - Secret Rare - Unlimited Edition Tweet Out of stock. $1.44 Wishlist Details Passcode: 39512984 Set: Hidden Arsenal 7: Knight of Stars Card Number: HA07-EN059 Monster Type: Rock Rarity: Secret Rare Attribute: Earth Card Text: 3 "Gem-Knight" monstersMust 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 and original effect become the same as that banished monster's. Level: 9 Card Type: Fusion Monster Name: Gem-Knight Master Diamond Edition: Unlimited