Hrm I've tried imperium before; I didnt feel like negating 1 attack every 12 secs was worth it; even with mist form.
Maybe its cuz I didnt stack it with others like you have; which is pretty interesting concept.
I like that.
Well, even individually it is consistently absorbing between 20-30% of damage taken in every BG I do - same with Ciannait. You can check these numbers in combat metrics (the damage absorbed by damage shields shows up in healing done section).
For comparison, Pariah at full value provides "just" 15% dmg mitigation and other defensive sets with 100% up time usually have the number around 10% (Buffer of the Swift or Steadfast for example).
Another way to look at it: 5,6k shield every 12s means 466 shield per second. That means you get around 20-30% damage reduction if your damage taken is between 1,5-2k.
So the more damage you avoid in the first place (mist form/mobility/playing ranged) the more useful these damage shields become.
Now if your average damage taken per second was above 5k (through mist form!) then something like Buffer of the Swift would be slightly better at -500 dps, but I don't think surviving that much incoming damage is very realistic in the first place.
Interesting set-up! Maybe you could also post 5 min or so of footage!
PC NA @gariondavey, BG, IC & Cyrodiil Focused Since October 2017 Stamplar (main), Magplar, Magsorc, Stamsorc, StamDK, MagDK, Stamblade, Magblade, Magden, Stamden