3 Level 4 monsters

Once per turn, when this attacking card destroys an opponent's monster by battle and sends it to the Graveyard: You can detach 1 Xyz Material from this card; Special Summon the destroyed monster to your opponent's side of the field in face-up Attack Position, also it loses 1000 ATK, and if you do Summon this way, this card can make a second attack during this Battle Phase.