I also put some points in Elemental Balance for dem critz, but that’s just personal preference. I you put some in Mental Alacrity you can counter the need for Ectoplasm component in rings, like this: https://www.grimtools.com/calc/qNYJEQA2
I don’t know do u really understand my build. In this setup the OA is only 2700. U don’t even crit on a hero. In this case elemental balance don’t work if u don’t crit. The crit chance is based on OA.
U drop 1 of the best aoe dmg proc meteor + 5% OA, one of the best OA granted devotion chariot of dead + grant u healing and DA. Fiend is good aoe too.
In my build i don’t have too much aoe dmg. The only 1 is cadance. I choose this devotions too have aoe and with Breonath weapon I turned them into phisical dmg, so a huge benefit from it.
Further more u don’t really need topaz, since most of time i block all the dmg, that’s why i use shield. There is 2 sec when u have to wait to put up overgaurd, but in this case the build still tanky to not die by one hit.