Build critique - poison shield crush trickster

So this is not a build showcase, it's a work in progress, I'm looking for feedback on how to make the character more powerful without heavy investment - I'm a casual player so I can sink a few more divines in at most. Basically the idea is to do the Snakebite/Frenzy stacking thing, but go crit poison because Emperor's Vigilance, Seething Fury give a ton of extra crit multi, kind of like the Nightblade poison builds. I'm also getting a bunch of crit chance from self-blind with Second Sight Keystone, good synergy because you don't need a high dps weapon since your shield is doing all your damage.

The damage is pretty good, generating Frenzies is a little clunky though, if you die you need to stack them all again manually which sucks against nasty bosses. Defensively it's pretty tanky, although stun and chill are bothering me because hybrid builds have low life although decent ehp.

POB link here: https://pastebin.com/VApt0gcf