Originally Posted by
matrix123mko
Yet it is not outside of realm of possibility to drain health from yourself to heal someone. It is just an opposite transfer process. Also, something like that was shown in Warcraft: Beginning, which suggests it could be also possible in canon lore. The closest thing to that is one nightfallen that uses fel to restore his health.
Would that matter to healer? Priests shoot light at undead without any care about them. Also, fel only kills if used offensively. It didn't kill orcs or felblood elves.
You can always kills someone, raise him and heal. Other thing a death knight could do is blood transfusion, akin to ones used by San'layn.
Or as I said, blood based healing.
healthstones lore wise are not something anyone other then warocks use, simply because while it does heal it also corrupts, so only when desperatly needed should they be used.