About 200 hp I'd say. I went to Amazons with a guild member, and we were doing great. He had to log off for a bit, then he came back. During that solo time, I decided to kill stragglers. Had fun too, but I had got rid of Fire Storms for Mass Heals. Worst idea ever, the Mass Heals healed like 130 hp. Something, somewhere, went terribly wrong. Considering my wizard's slaad wasn't there to tank (give it a shield of faith and regeneration and hed get 49 AC + 6 Regeneration with 625 HP, Uber Meat Shield), I used Mass Heals to heal myself. Big mistake, lost more hp a round then I gained from a heal (mass) spell.
I think it lost out on the improvements Heal got after it was decided worthless in Beta after its non-full heal nerf. I don't think it needs full heal, no don't get me wrong. I just think it needs to be able to bring me to at least up to Injured when I got the Healing Domain
.