Ok so God Can do anything, that's what makes God a God. So that means that he Can create someone stronger than him to be able to destroy him. Or it can mean that he can never make someone stronger than him because he is infinite so nothing can be stronger than him.
Ok so if he Can make someone stronger than him to destroy him, then he is not infinitely powerful thus he doesn't deserve the name God. If he can't make someone strong enough to kill him then he can't do Anything thus he doesnt deserve the name God because God is supposed to be able to do anything
It seems to me you do not understand what divine omnipotent mean.