DRK skill: Living Dead

[Anahlise_Auhn_Giinslai]

my personal idea for Living Dead is to trash its current design, just burn it to ashes and give up on it, and re-birth Living Dead into its function being different.

first, a question. invulnerability aside, what is the actual purpose of these skills? immune to all damage?
no. the point is to "avoid KO", and "survive what would KO you".

as for the actual idea, my first thought is to re-name Living Dead, because my intent is for Living Dead to function in a very different way, while my actual thoughts are that Living Dead could be a ability that activates a permanent passive self-buff that just sits on the Dark Knight like a Tank Stance and does naught with itself. its special effect will come into play when the Dark Knight is about to be KOed, as its passive effect would be:
"upon receiving damage that would reduce your HP to under 1, the damage is negated and (new name of the ability or name of its passive effect) is removed, while your HP is immediately restored to 50% of maximum HP, and (new name of the ability or name of its passive buff) is then replaced with (name of a different passive effect, like how Living Dead becomes Walking dead), which reduces all damage taken by 50%, for (??)seconds."

other than, obviously, having a big (???)second CD that starts when the permanent passive self-buff is turned on, the ability would also have a large initial MP cost(5000?), as this is a "investment" to the skill paying the Dark Knight back later, when the Dark Knight would have been KOed, but instead was able to stay on their feet; and "cost" 100 MP per 5 seconds, as the permanent passive self-buff would be slightly eating away at your MP a bit, as the "price" for/of its "permanence".

what do my fellow current Dark Knight hater - old Dark Knight lover Dark Knights think of this?
would this be a good KO-avoid skill and also "fit with" Dark Knight?

in the case that any person may be wondering, the inspiration of this idea is that Dark Knight uses "Blood magic", along with their Dark magic,
and this KO-avoid ability is a "Blood magic" spell.