Number 17: Leviathan Dragon [GENF-EN039] Ultimate Rare Holofoil Set: Hobby League 1 Card

Set: Hobby League 1 Card type: Effect Monster Rarity: Super Rare Attack: 2600 Defense: 1500 Send "Umi" on your side of the field to the Graveyard to destroy all cards on the field except this card

you can Special Summon this card

its ATK/DEF become equal to the original ATK/DEF of that equipped monster

you can Special Summon 1 Level 4 DARK monster from your Graveyard

Number 17: Leviathan Dragon [GENF-EN039] Ultimate Rare Holofoil Set: Hobby League 1 CardSet: 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.