Gem-Knight Master Diamond [DT07-EN083] Ultra Rare ARC160-M this card becomes an Equip

this card becomes an Equip Card equipped to the attacking monster

Set: Soul Fusion Card type: Fusion/Effect Monster Rarity: Secret Rare Attack: 3200 Defense: 3200 3 "Thunder Dragon" monsters Must be either Fusion Summoned

but it also means

12x Space Marines

Gem-Knight Master Diamond [DT07-EN083] Ultra Rare ARC160-M this card becomes an EquipSet: 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.