Living Dead change idea

[Lyth]

The shield is superfluous. If you're at 1 HP, you're mitigating all incoming damage anyways, so you're just doubling up mitigation unnecessarily. If you wanted a flat shield effect, it would need to apply when the death prevention effect ends. One way of doing this would be:

Living Dead: Most attacks cannot reduce your HP to less than 1.
Additional Effect: Grants Shield when Living Dead expires.
Shield Effect: Creates a barrier equivalent to (fatal) damage prevented while Living Dead is active, up to a maximum of X% of your maximum HP. Duration: 5 seconds

And yeah, to echo the earlier point, any 'solution' that simply changes the % healing requirement on Living Dead doesn't address the problem. The only acceptable % healing requirement is 0%.

[Lammas]

The shield is superfluous. If you're at 1 HP, you're mitigating all incoming damage anyways, so you're just doubling up mitigation unnecessarily.

If that was aimed at me, it wouldn't be superfluous because it would allow you do to things that having the shield after would not, e.g. standing in bad without getting a damage down.
That said I do like your solution as well as it would address the immediate healing requirement after the effect ends that DRK is not too good at dealing with by himself.