Number 17: Leviathan Dragon [GENF-EN039] Ultimate Rare 147 If you control an Urza's

If you control an Urza's Mine and an Urza's Power-Plant

{T}: Return target permanent that isn't enchanted to its owner's hand

Set: Theros Type: Legendary Enchantment Creature — God Rarity: Mythic Cost: {3}{B} Indestructible

Set: Double Masters Type: Sorcery Rarity: Rare Cost: {B} Target player reveals their hand

Number 17: Leviathan Dragon [GENF-EN039] Ultimate Rare 147 If you control an Urza'sSet: Generation Force Card type: Xyz Effect Monster Rarity: Ultimate Rare Attack: 2000 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.