You have at last reached your predestination: you will die in eternal glory. As a Magic action, you can gain the following benefits for 10 minutes. At the end of the duration, you die. No force, short of a Cleric's Divine Intervention, can prevent your death, and you can't be returned to life by any means.
Immunities
You have Immunity to all damage and to all conditions except for the Grappled, Invisible, Prone, and Unconscious conditions.
Wish
You can cast Wish once without a spell slot. You suffer no stress from using effects other than duplicating another spell.