Apotheosis

You've achieved a form of Apotheosis, becoming god-like in power. You gain the following benefits:

Divine Existence. You can't be surprised, you can read and understand all languages, and you count as a deity for the purposes of spells and other effects. In addition, you are immune to exhaustion and don't require air, food, drink, or sleep. You are also immune to any spell or effect that would affect or read your mind, alter your form, send you to another plane of existence, sense your emotions, or telepathically communicate with you unless you allow it. Finally, neither your ability scores, or your hit point maximum can be reduced in any way.

Eternal Life. When you die, your body disappears into an ethereal golden mist and fades away, leaving behind any items you had on your person. You reappear completely healed and fully rested in an unoccupied space of your choice on the same plane of existence that you were slain after 1d20 days. You can't be resurrected by any other means and are immune to any effect that would instantly kill you or prevent resurrection.