If you want to go full on tank and retaliation you might take inspiration from this thread http://www.grimdawn.com/forums/showthread.php?t=74791
which made a tanky witchblade counter striker.
Replace the occultist with oathkeeper, shuffle some devotions and gear for more retal, pick a few placeholder skills till we figure out how things actually work and here is my first pass at something that is unoptimized.
https://www.grimtools.com/calc/4NOWvJdN
It has the tank stats to rival what malawiglenn posted with big health, big absorb, big armor, and 100% block recovery with 96% block chance and roughly 240K in average retaliation damage when at full proc power.
But more importantly, unlike your build it has ways to leverage that retaliation damage.
First there is the counter strike. Not updated on grimtools yet but spoiled elsewhere is the fact that counter strike will now add retaliation damage and this counter strike is tricked out to being procable every .2 seconds instead of once a second.
Second is Targo’s Hammer. Those block numbers from before mean that’s a lot of potentially spawned hammers each of which will multi-hit for 33% of the aforementioned 240K retaliation damage, ie 80K hits.
Now is where things get a little dicey which is why my points are spread out funny to show possible options. I simply don’t know how these skills play together yet.
Option 1 is based on Retribution and assumptions. Assuming it works like the add-ons to savagery like storm touched, that is 8% retaliation to any attack for the next 2 seconds while the charge is on. On the further assumption it is not going to require 100% weapon damage to get the full 8% retaliation added then its time to spin and win. I’ve read that baseline Eye of Reckoning hits 5 times a second. 80k of applied retaliation a second is not the most spectacular dps ever but hey its better than not using your retaliation at all.
Option 2 is to hit things in the face with a modified Aegis of Menhir for 38% retaliation damage once every 2.5 seconds (with a 20% chance for instant cooldown reset). The reason I like it less than Option 1 is that the skill has a stun and we want things hitting us and being retaliated on, not stunned. (This is also why some of the devotion picks look funny since we don’t want to be procing petrifies, knock downs, and stuns. We live with the stun chance on Targo’s Hammer because we have to, not because we like it).
If Option 1 doesn’t work shift points from there into Avenging Shield in Option 2. If Option 1 works you can shift points from Option 2 into Ascension and Clarity of Purpose