Number 17: Leviathan Dragon [GENF-EN039] Ultimate Rare XY141 Once per turn: You can

Once per turn: You can target 1 monster you control

Set: Structure Deck: Machina Mayhem Card type: Effect Monster Rarity: Common Attack: 1400 Defense: 1400 If an opponent's monster attacks this face-down Defense Position card

Set: Shadows in Valhalla Card type: Normal Spell Rarity: Super Rare Fusion Summon 1 "Cyberdark Dragon" from your Extra Deck

and based on its type apply the proper effect: •Monster: End the Battle Phase

Number 17: Leviathan Dragon [GENF-EN039] Ultimate Rare XY141 Once per turn: You canSet: 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.