Houndoom (H11/H32) [Aquapolis] Dinosaur Set: Strike of Neos Card

Set: Strike of Neos Card type: Effect Monster Rarity: Ultimate Rare Attack: 900 Defense: 300 If this card attacks or is attacked by an opponent's monster you can return both monsters to their owner's hands at the start of the Damage Step (without damage calculation)

you can toss a coin 3 times

Set: Hidden Arsenal 7: Knight of Stars Card type: Xyz/Effect Monster Rarity: Secret Rare Attack: 2700 Defense: 2000 2 Level 6 monsters You can also Xyz Summon this card by using a "Constellar" Xyz Monster you control as the Xyz Material

cards cannot be added from either player's Main Deck to the hand

by Tributing 1 monster they control

Houndoom (H11/H32) [Aquapolis] Dinosaur Set: Strike of Neos CardSet: Aquapolis Type: Darkness Rarity: Rare Retreat cost: Colorless