Healing for fun and profit Part Duex

So...
Listening to one of my favorite podcasts Gamerstable they were talking about healing recently. I've already posted some ideas on how to make healing more interesting here. I had a few more ideas on healing that I will be incorporating into my homebrew world.

Idea the first: Clerics can only heal in a pinch. In an effort to make my games a bit deadlier (and I do like them deadly) Clerics are not the healbots everyone thinks they are. Clerics can lay on hands much like a Paladin, but only twice per day, and they have to make a Devotion check. The Devotion check is a d20 roll, where they must roll under their class level, if the prayer fails, they did not heal the target. If they roll at or under their class level, then the target is restored to half normal hit points. To ensure wily  players can't get around this, there will be NO healing spells, potions, or magic items. because I don't completely hate PCs, I will be allowing for NPC healers. Whether it be an old crone in the woods, or a town elder, some healing will be available for the PCs. (I'm not completely heartless). Much of the healing available will not taste good. Refer to my previous healing post. ;-)

Idea the second: Healers will have a healing skill. They will only be able to heal at the moment. No saving that salve for later. Healers will NEVER, and I mean effin NEVER go adventuring. This is an NPC class only. (Anyone remember the Death master?) The GM will decide what form the healing takes. Potion, Payer, bandages, etc... A thought I just had: Spells like Remove Curse, Resurrection, etc. Can also only be performed by NPCs.

Idea the Third: Some damage sustained by the characters will be a permanent loss of health. If the Character receives a wound that exceeds more than half their hit point total, they will roll a die and permanently lose that many hit points. This may seem a bit extreme, however, have you ever seen someone with really severe injuries? They are never quite the same again, or quite 100% healthy.

That's all I have for now. Use it or not. I realize not everyone is as bloodthirsty as I am, but if you find something useful, enjoy the anguished look on your players faces.

Happy gaming!