If you were to believe in a god, be sure that He is the true God. To know the true God, He must be omnipotent, omnipresent, and omniscient. Omniscient, including knowing what happened in the past and what will happen in the future.
Satan is omnipotent and omnipresent, but he is not omniscient. The spirit of Ama told us that every miracle is helped by the Devil. That is why I say that Satan is omnipotent. A person maybe replaced by another person, like in teleportation. You call that "miracle"?