Re: Use it, and it's gone?
This is what I ended up putting together. Bearing in mind this is an everyman package for characters in this campaign.
Lifefire is a power imbued into these characters, and cannot be replaced at all. They cannot die while the Lifefire remains. They can't control when it heals them - the worse they get hurt, the more Lifefire it'll burn. I'm giving them the package for free, but any amendments from it have to be bought from scratch (ie, if you want cheaper Resurrection, I may allow it, but you have to buy it again, not just pay the difference). The Lifefire (END pool) has to be paid for.
Regeneration (1/hour): 8
No Conscious Control (Activates when character on negative body, whether or not they want it to): -2
Costs 1 END to activate: -0
Cost: 3 points, 1 END to activate
+ Heal Limbs: 5
Costs END to Activate: -1/4
2x END: -1/2
Cost: 3 points, 2 END to activate
+ Resurrection: 20
Costs END to Activate: -1/4
5x END: -2
Cost: 6 points, 20 END to activate
Then the Lifefire is bought as an END pool with no REC. The characters pay for how much they start with (there are rules for that, but I dont want to give those away in case people are reading)