There is an important distinction (more than one, but this is what is relevant here) between the powers of God and magic. God is a being who decides whether to do anything, so is intrinsically not testable.
Magic is testable.
God exists outside the universe, magic within.
Is that really objectively facts?
That a god exists outside of the universe - are we talking about a multi universe interpretation? My understanding is that many of the gods humans have invented are really thought to be within the universe, at least temporarily. Tor, Oden certainly are. And in other beliefs they are part of nature itself.
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