Theban Nightmare [DR2-EN176] Rare Warrior If this card is used

If this card is used as a Synchro Material Monster

If this card is Special Summon with this effect

Set: Black & White: Emerging Powers Type: Water Rarity: Uncommon Retreat cost: Colorless

) This card cannot be destroyed by battle

Set: Return of the Duelist Card type: Xyz/Effect Monster Rarity: Super Rare Attack: 1800 Defense: 2200 2 Level 3 EARTH monsters Once per turn: You can detach 1 Xyz Material from this card to target 1 Set card in your opponent's Spell & Trap Card Zone

Theban Nightmare [DR2-EN176] Rare Warrior If this card is usedSet: Dark Revelation Volume 2 Card type: Effect Monster Rarity: Rare Attack: 1500 Defense: 500 While there are no cards in hand and in the Spell & Trap Card Zone of this card's controller, increase the ATK of this card by 1500 points.