Aetherize [Duel Decks: Elspeth vs. Kiora] SM115 You can only use this

You can only use this effect of "Cosmo Brain" once per turn

You must control 3 or more Winged Beast-Type monsters to activate and to resolve this effect

Set: Battles of Legend: Light's Revenge Card type: Effect Monster Rarity: Ultra Rare Attack: 2000 Defense: 1200 Cannot attack directly

Set: Tournament Pack 2 Card type: Normal Monster Rarity: Rare Attack: 2200 Defense: 2350

Aetherize [Duel Decks: Elspeth vs. Kiora] SM115 You can only use thisSet: Duel Decks: Elspeth vs. Kiora Type: Instant Rarity: Uncommon Cost: {3}{U} Return all attacking creatures to their owner's hand. "You can come back once you've learned some mannersand figured out how to reconstitute your physical forms."