Magikey Deity - Ashtartu (Common)

2 Level 8 monsters
Once per turn, when a Normal Monster or a Magikey monster you control destroys an opponent's monster by battle: You can detach 1 material from this card; inflict damage to your opponent equal to the original ATK of the destroyed monster. Once during your opponent's Main Phase: You can target 1 monster your opponent controls that has the same Attribute as a Normal Monster or a Magikey monster you control or in your GY; detach 1 material from this card, and if you do, banish the target.