1) Keep as is but without the death and healing requirement or 2) Make it a 25% healing requirement and give a trait which allows the DRK to assist in the healing by way of Drain/absorb/dread spikes. It would almost be a tell in and of itself if WD phase opened up an outrageous drain, spell, or aura as a clue to healers, if they hadn't already known, to start healing. It is such a punishing and unrewarding ability as is. Not to mention the lack of an real heal ability in the DRK kit when you give a ability like LD is laughable - Here's lookin' at you Equilibrium or Clemency (Paladin is essentially a knight, right?... don't I have knight in my name too?).