If you actually died and were resurrected after 1 turn then it would be good. Then you could combine it with talents that make you blow up on death and res with full health. Yes, I know that would be powerful, but these are talents we're talking about, you don't gain them every level. Pillars of Eternity has items and talents that proc on death (or unconscious in that game ) and allow you get back up. At the moment this talent is another way of saying you get 20% HP once per encounter (is it per battle?).
