Number 17: Leviathan Dragon [GENF-EN039] Ghost Rare 061 that mentions "Umi"

that mentions "Umi"

1 Foil-Etched Display Commander (a thick cardstock copy of the commander card with foil etched into the card's border and art)

• 1 Tempt with Discovery

You do not use "Polymerization" to Special Summon this monster from your Fusion Deck

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Number 17: Leviathan Dragon [GENF-EN039] Ghost Rare 061 that mentions "Umi"Set: 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.