I have tried Keeper vs Earth and Sky and the damage numbers are similar, only differences seem to be one uses Will vs Int. With willpower giving a slight overall damage boost. I have not tried Lighting bolt damage. From what I am seeing, unless it is a UI bug, it is only additive damage . Damage to close and distant gives a huge multiplicative damage boost via Thunderstruck node. Petrify is great with my Envenom amulet for bossing, but sadly in the pit we can not swap gear at the boss. With the way I have this setup Cataclysm is doing good damage for add clusters in the pit. As far as Andariels is concerned, it’s the poison nova procs. They proc Envenom on everything constantly in a wide radius. Procs Heightened Malice node constantly and the poison ticks scale higher then you think. Here is a short clip. Watch the white ticks of poison damage vs using Shake.

m.kzfaq.info/get/bejne/hdiHpriQ0dimp5c.html

I am playing season 4 with this build, just on eternal/main realm

Should work better on seasonal realm due to you having access to the holy bolt elixir. Should be extremely strong

Also, glyph for barrier calculate on max life. You should use that for barrier your shield dps will be x10 more