Barrage Blast

Once per turn: You can detach any number of materials from Machine Xyz Monsters you control, then target that many cards on the field; destroy them. If a Machine Xyz Monster(s) you control is destroyed by battle or an opponent’s card effect while this card is in your GY: you can banish this card and 1 Machine Xyz Monster in your GY; inflict damage to your opponent equal to the Rank of the banished monster ×200.