You can Special Summon this card (from your hand) by Tributing 2 monsters with 2000 or more ATK. During either player's Battle Step, when this card battles an opponent's monster: You can target the monster this card is battling; banish both it and this card, then any monster banished by this effect returns to the field at the end of the Battle Phase. If the monster banished by this effect was an Xyz Monster, this card gains 500 ATK for each Material the Xyz Monster had when it was banished.