Plague Wolf [FOTB-EN065] Secret Rare Cockatrice Set: Gym Challenge 1st Edition

Set: Gym Challenge 1st Edition Type: Water Rarity: Rare Retreat cost: Colorless

Synchro Summon using monsters you control as material

Set: Black & White: Boundaries Crossed Type: Water Rarity: Holo Rare Retreat cost: Colorless

Set: Sun & Moon: Celestial Storm Type: Water Rarity: Ultra Rare Retreat cost: Colorless

Set: The Brothers' War Retro Artifacts Type: Artifact Rarity: Rare Cost: {3} As Cloud Key enters the battlefield

Plague Wolf [FOTB-EN065] Secret Rare Cockatrice Set: Gym Challenge 1st EditionSet: Force of the Breaker Card type: Effect Monster Rarity: Secret Rare Attack: 1000 Defense: 1000 Once per turn, you can change this card's ATK to twice its original ATK. If you do this, destroy this card during the End Phase.