A normal godclad should be feeling great pain during the transformation, experiencing more temptations, and undergoing changes to their existence at the same time.
This phenomenon is why 90% of the rank 3 godclads who try to become rank 4 godclads die during the process or mutate and lose control. This is despite the fact that their bodies haven't been fully converted yet.
Becoming an epic being is a watershed. The bulk of godclads in existence are at rank 3. It is not that many of them don't try to become rank 4. Many of them do try to become epic beings, but many of them die during the process.
So it's not an understatement to say that godclads die mostly from trying to become epic beings. It is not murder that is responsible for the death of most godclads. It is the process of trying to acquire more power that kills them.
What's more, this problem can't be solved. It will continue to remain within the godclad and will rear its head stronger during each advancement.