Number 17: Leviathan Dragon [GENF-EN039] Ultimate Rare LGS011-P and a choice of two

and a choice of two Gutrippa musicians

At the beginning of the next main phase this turn

At the beginning of each opponent's upkeep

this card cannot attack

Set: Ikoria: Lair of Behemoths Type: Legendary Creature — Nightmare Beast Elemental Rarity: Mythic Cost: {2}{B}{G}{U} Mutate {2}{U/B}{G}{G} (If you cast this spell for its mutate cost

Number 17: Leviathan Dragon [GENF-EN039] Ultimate Rare LGS011-P and a choice of twoSet: 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.