Number 17: Leviathan Dragon [GENF-EN039] Ultimate Rare RC15 and 'Gamma the Magnet Warrior'

and 'Gamma the Magnet Warrior' exist in the Graveyard

your opponent's card effects

Your monsters cannot be destroyed by battle while you have 10

Set: Ra Yellow Mega Pack Card type: Synchro/Effect Monster Rarity: Super Rare Attack: 2600 Defense: 2100 1 Tuner + 1 or more non-Tuner DARK monsters Once per turn: You can target 1 monster your opponent controls

Number 17: Leviathan Dragon [GENF-EN039] Ultimate Rare RC15 and 'Gamma the Magnet Warrior'Set: Generation Force Card type: Xyz Effect Monster Rarity: Ultimate Rare Attack: 2000 Defense: 0 2 Level 3 monsters Once per turn: You can detach 1 Xyz Material from this card, this card gains 500 ATK. If this card has no Xyz Materials, it cannot attack your opponent directly.