Number 17: Leviathan Dragon [GENF-EN039] Ultimate Rare GX Manga Promotional Cards This card can attack as

This card can attack as many of your opponent's monsters each turn as the number of Fusion Material Monsters you used for the Fusion Summon of this card

Return 1 card on your opponent''s side of the field to the top of the owner's Deck

(Only 1 card at a time can be equipped due to this effect

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Number 17: Leviathan Dragon [GENF-EN039] Ultimate Rare GX Manga Promotional Cards This card can attack asSet: 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.