SCH lacks a single target mitigation ability

[UkcsAlias]

That's not a job balance issue

Not entirely, it can be a coding issue that is part of the balance of a job. Lets say you use living dead and your HP is exactly 10k in the normal case. If you now get 10% extra, it becomes 11k, and walking dead now triggers. If expedient ends, you have only 10k max. Lets say the 2nd healer uses benediction on you, effectively being that 100% heal. What happens?

If the game considers the value on start, you die.
If the game considers the value on end, you are safe

Since its not described when the value is decided, its guessing.

(and yes, this similar behaviour works acros many aspects. but this example is easier to follow due to its very slow progress in what happens)

[AnotherPerson]

Not entirely, it can be a coding issue that is part of the balance of a job. Lets say you use living dead and your HP is exactly 10k in the normal case. If you now get 10% extra, it becomes 11k, and walking dead now triggers. If expedient ends, you have only 10k max. Lets say the 2nd healer uses benediction on you, effectively being that 100% heal. What happens?

From what I understand, Living dead only activates when you hit below 1 HP, not when you lose a certain amount of HP. Walking Dead will not trigger unless you drop below 1 HP, not when you reach 1 HP because a buff expired.
The reverse is also different - Walking dead only requires you to restore a certain amount of HP to get out of Walking dead, not reach a certain percentage of HP. Plus, the Cure Potency of Walking dead is pretty much good enough to prevent that from happening now, even if a healer benediction late, because the DRK can just attack and cover the difference if the Walking Dead debuff hasn't been removed.

[UkcsAlias]

Walking dead only requires you to restore a certain amount of HP to get out of Walking dead, not reach a certain percentage of HP.

You have to be healed an ammount equal to your max hp, hence the max health is a factor. The issue is when this max health value is taken (which is mostly a coding thing as in most cases its simply not relevant as your max hp doesnt realy change as often).
And thats why i also used benediction, since if that is the only ability that was used, it does not provide any overhealing, causing the risk.

In actual gameplay its unlikely that you heal someone to full health in a single ability without him facing a few extra attacks. But if the risk exists, its good to know how it works.