[@Liotrent] Yea make it so he can only die once. You can also give him Archangel Physiology if you like which means he would have Divine Force Manipulation.

http://powerlisting.wikia.com/wiki/Archangel_Physiology

You don't have to but the option is there. You can't have any of the other Archangel's powers. Such as death inducement for obvious reasons.