Number 17: Leviathan Dragon [GENF-EN039] Ghost Rare Dark Beginning 1 this card negates the effects

this card negates the effects of your opponent's Spell

You can pay 2000 Life Points to destroy all cards on the field except this card

or when a Spell/Trap Card that is already face-up on the field activates its effect: You can send this card from your hand or your side of the field to the Graveyard

Set: Force of the Breaker Card type: Effect Monster Rarity: Ultimate Rare Attack: 1600 Defense: 1500 You can discard this card to the Graveyard to add 1 "Necrovalley" from your Deck to your hand

Set: Labyrinth of Nightmare Card type: Normal Trap Rarity: Ultra Rare Attack: 0 Defense: 0 You can activate this card when a monster is Summoned (including Flip Summon and Special Summon)

Number 17: Leviathan Dragon [GENF-EN039] Ghost Rare Dark Beginning 1 this card negates the effectsSet: Generation Force Card type: Xyz Effect Monster Rarity: Ghost 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.