
Originally Posted by
YojimboM
There is no such thing as an "oh shit" button. It's an immunity cooldown. You use them trivial certain mechanics (eating a stack solo, taking multiple of an unsurvivable hit, etc) or to give healers time to do whatever they want or DPS instead of needing to heal the tank. They're really useful for dungeons because there are a lot of situations where a healer might not even have to heal you for most of a pull at all if you use them correctly. The last reason you want to use an immunity is for an "oh shit" situation because that means something went catastrophically wrong somewhere else.
Living Dead has, until recently, always been one of the better immunities since it has a very long duration (over 10 seconds of "immunity" most of the time since the healer knows they can just let you drop), it allows you to move (when Holmgang used to root you), and the condition to resolve it is something that had to be done anyways: healing (minus Hallowed Ground).
No. It's healing them for the value of their maximum HP. They do not need to be healed to full HP. If they have 110k HP max, are at 1 HP, get healed for 55k, take a hit down to 30k, get healed for another 55k, that's a total of of 110k and the debuff will be removed, for example.
Anyways, the topic is whether or not there is too much disparity between GCD healing and tank max HP right now, not whether or not Living Dead should exist (it should). If you don't understand the topic, usually better to not respond. You have very little understanding of how tank immunity is used or how Living Dead works.