DRK's Over-reliance on WHM: Are we Dead or Alive?

[Tex_Mex]

What about this:

Living Dead (360s CD):
Grants the effect of Living Dead. When HP is reduced to 0 while under the effect of Living Dead, instead of becoming KO'd, your status will change to Walking Dead.
Living Dead Duration: 10s
While under the effect of Walking Dead, most damage done to you will heal you instead of dealing damage. You cannot be healed higher than 50% of your maximum health while under the Walking Dead effect.
Walking Dead Duration: 8s

This potential solution would do several things:
1) It would play on the concept of a Dark Knight feasting on the souls of its enemies.
2) This solution completely removes healing requirements from the skill. Healers would only need to heal the tank back after the immunity ends.
3) This solution makes Living Dead usable in solo content and significantly better in 4-man content.
4) The reason for the decreased Walking Dead duration, increased CD to 360 sec, and limitation on how much healing you could receive is to balance out this skill. The Walking Dead effect in this version is MUCH better than the current version, and IMO the skill would need these other limiters to keep it from being better than other tank immunities.