With a single thought, all things are reborn!
For many deities, this is a power beyond reach.
Especially when the Cosmic Entity was still around, even if some gods had the power to defy fate and resurrect the dead, the Cosmic Entity would absolutely not allow such acts.
In a universe governed by the Cosmic Entity, it believed that only it had the power to create.
Resurrecting the dead was seen as an overstep by the Cosmic Entity.
It's like certain things only an emperor can do, and not his subjects, no matter how capable they are. If they attempt it, they would be condemned.
This is why when William resurrected Artemis, he always faced the Law of Cause and Effect, and later, those he resurrected turned into zombies...
It wasn't that William lacked power, but that the Cosmic Entity of that time saw William as merely one of its subjects, no matter how strong he was.
