I posted this in the Tank forum but will put it here for discussion:

From a healers perspective, Living Dead needs a healing buff modifier on it of some sort or only need to heal a portion of total damage vs all of it.

At lvl 80 DRK's can have well over 100K HP (most have 111K) and if they're in a situation where living dead is used and procs, nothing but a WHM Benediciton is going to keep them alive.

I used a Recitation (guaranteed crit) > Emergency Tactics > Adlo with a lustrate and it still wasn't enough.

I'd have to burn like 2 or 3 lustrates as well to even come close and it still wouldn't be enough.

I think someone did the math somewhere and it was like 3600 total potency worth of healing to get out 111K worth of hit points. My napkin math matches this. My 400 pot physic heal averages 12500 ish (439 ilvl). That would take 8.8 of those to top a DRK off (8.8 x 400 = 3546 total pot)

That's insane.