Gem-Knight Master Diamond (DT07-EN083) [Duel Terminal 7] DUEA its controller chooses target permanent

its controller chooses target permanent another player controls that shares a card type with it

that player may pay {1}{B}

This card's maximum number of attacks per turn equals the number of non-Tuner monsters used as its Synchro Material

Set: Platinum: Rising Rivals Type: Lightning Rarity: Rare Retreat cost: 0

players can't untap more than one land during their untap steps

Gem-Knight Master Diamond (DT07-EN083) [Duel Terminal 7] DUEA its controller chooses target permanentSet: Duel Terminal 7 Card type: Fusion Effect Monster Rarity: Ultra Rare Attack: 2900 Defense: 2500 3 "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 and original effect become the same as that banished monster's.