Number 17: Leviathan Dragon [GENF-EN039] Ultimate Rare RC15 Set: Starter Deck: Joey Card

Set: Starter Deck: Joey Card type: Normal Monster Rarity: Ultra Rare Attack: 2400 Defense: 2000 A ferocious dragon with a deadly attack

and 'Gamma the Magnet Warrior' exist in the Graveyard

if it left the field by this effect

this card's ATK becomes 5000 during that damage calculation only

Number 17: Leviathan Dragon [GENF-EN039] Ultimate Rare RC15 Set: Starter Deck: Joey CardSet: 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.