Gene-Warped Warwolf [BP02-EN002] Common Dark Revelation Volume 4 You can only use this

You can only use this effect of "Guardragon Pisty" once per turn

Set: Speed Duel Decks: Duelists of Tomorrow Card type: Effect Monster Rarity: Common Attack: 1300 Defense: 600 If there are no cards in your opponent's Spell & Trap Card Zones

the ATK of this card is decreased by 1000 points

inflict piecring battle damage to your opponent

Set: Structure Deck: Rise of the Dragon Lords Card type: Normal Spell Rarity: Common Discard 1 card

Gene-Warped Warwolf [BP02-EN002] Common Dark Revelation Volume 4 You can only use thisSet: Battle Pack 2: War of the Giants Card type: Normal Monster Rarity: Common Attack: 2000 Defense: 100