Gem-Knight Master Diamond [DT07-EN083] Ultra Rare Monk destroy all Spell and Trap

destroy all Spell and Trap Cards on the field

Left Leg of the Forbidden One

and each monster they control must attack this card

When Cavalier of Night enters the battlefield

untap Goblin Sharpshooter

Gem-Knight Master Diamond [DT07-EN083] Ultra Rare Monk destroy all Spell and TrapSet: 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.