Please rework living dead again.

[CKNovel]

It's actually impossible to die using LD now..

It's legit possible, if you're unlucky LD can pop at a bad GCD timing and if it doesn't crit, you'll be short a few HP.
It's a very rare case but I've experienced it and I was asked to throw a Aurora/Corundum to avoid this problem.

DRK just needs a bit more self healing, it's really a ridiculously short amount.
In lower level content, your crit rate is also reduced, as well with your det stat.

Other than that, Living Dead is excellent and don't need to be changed. Please don't give DRK a "normal invuln ike the other tanks", remember we're also complaining that tanks feels too similar.