Number 17: Leviathan Dragon [GENF-EN039] Ultimate Rare 121 Set: Wizards of the Coast:

Set: Wizards of the Coast: Black Star Promos Type: Grass Rarity: Black Star Promo Retreat cost: Colorless

Sacrifice a Wizard: Counter target spell

Set: Strike of Neos Card type: Fusion/Effect Monster Rarity: Ultra Rare Attack: 2500 Defense: 2000 "Elemental Hero Neos" + "Neo-Spacian Glow Moss" This card can only be Special Summoned from your Fusion Deck by returning the above cards you control to the Deck

you can send 2 monsters you control to the Graveyard to skip your opponent's next turn

When you attack with three or more creatures

Number 17: Leviathan Dragon [GENF-EN039] Ultimate Rare 121 Set: Wizards of the Coast: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.