Number 17: Leviathan Dragon [GENF-EN039] Ghost Rare Dinosaur Set: Dark Beginning 1 Card

Set: Dark Beginning 1 Card type: Effect Monster Rarity: Ultra Rare Attack: 1000 Defense: 1000 When you have "Right Leg of the Forbidden One"

you can activate this card from your hand

This card can only be Special Summoned from your hand or your Deck by Tributing 1 "Dark Magician" on your side of the field when you succeed in the effect of "Time Wizard"

or Graveyard face-up in your Spell & Trap Card Zone

destroy this card at the end of the Damage Step

Number 17: Leviathan Dragon [GENF-EN039] Ghost Rare Dinosaur Set: Dark Beginning 1 CardSet: 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.