Creation and destruction are bound to the material world. If God created an angel, what matter, aside from God, would be created? If no matter is created then there is no matter to destroy. If God creates an angel from what material would God create it from? God is non material. The angel would just be an expression of God, just as a wave of the sea is just an expression of the entire sea itself, the wave is the sea, and an expression of the sea. The angel would also be just an expression of God. God would not create nor destroy anything, God would just be reconfiguring itself.

God is capable of being omnipotent and commit a logically contradictory action. If God is a perfect being, and thus can only create perfect things, and then God decided to create an imperfect object, then that object would be perfectly imperfect, like the beings that are asking the logically contradictory question: Can God kill Himself? Circular logic is in itself, complete.