Theban Nightmare [BP01-EN134] Common XY108 You can only use this

You can only use this effect of “Noble Knight Gwalchavad” once per turn

except “Thunder Dragonhawk”

If this card on the field is destroyed by battle or card effect and sent to the Graveyard: You can Special Summon 1 "Subterror" monster from your Deck in face-up or face-down Defense Position

Set: Battle Pack 2: War of the Giants Card type: Tuner Monster Rarity: Common Attack: 1300 Defense: 300 Once per turn

Theban Nightmare [BP01-EN134] Common XY108 You can only use thisSet: Battle Pack: Epic Dawn Card type: Effect Monster Rarity: Common Attack: 1500 Defense: 500 While you have no cards in your hand nor in your Spell & Trap Cards Zones, this card gains 1500 ATK.