الطائر المغير - صقر النصل الحارق

2 Level 4 Winged Beast-Type monsters
If this card is Xyz Summoned, and your opponent's LP is at least 3000 higher than yours: You can make this card gain 3000 ATK. When this card destroys an opponent's monster by battle: You can detach any number of Xyz Materials from this card; destroy exactly that number of monsters your opponent controls.