I read a light novel once where the protagonist had just killed what amounts to a restrained god. He figured the chains used to keep it drained of energy would be REALLY handy killing off the rest of his kind so he dug them out of the wall. Turned out they lost all power once removed from the wall so they were useless to him. Im sure something like this would be the same, again, thats assuming this actually IS some omnipotent device capable of altering reality beyond that of wish spells. (I do NOT suggest casting wish and saying, "I want to be a god")