This build represents my trip down the rabbit hole after I landed a Volcanic Rift of Snaking on my first try transmogrifying a red gem. After finding the mob tracking to be a welcome improvement, but with underwhelming results scaling fire damage, I decided to scale Corrupting Cry support, Reap, and Battlemage Cry instead. I must say, I do enjoy playing tanks, and this is no different. Vaal Reap is a surprisingly good for bursting. Righteous Fire is implemented here for Chill avoidance and Reap dot, although triple life burning damage does come in handy for taking out small mobs.
I recently decided to increase the chaos resistance by dropping Soul Gain Prevention buffs, and the build is playing through completing the atlas. It's cleared a Tier 12 Untainted Paradise.
PoB: https://pobb.in/ng94oXaUa2vN