The cure potency for Living Dead should be buffed slightly. Just enough so that a Dark Knight can heal themselves, without receiving healing from other party members, within 3 GCDs on a single target. Normally a Dark Knight heals themselves with just 4 GCDs under Living Dead. However, if their GCD is slow(such as a 2.5 GCD or near that) and Walking Dead procs right after their GCD cooldown starts, the bad timing can make it so they can only get 3 GCDs under Walking Dead. If all 3 of those GCDs don't critical hit and roll low for variance, the Dark Knight can die while near the HP restoration requirement. This is a rare case and can never happen if you just give the Dark Knight any slight amount of healing. However, I assume the last Living Dead change was to eliminate any need for healing assistance from other party members.