Huntsman Altimor2 Target
Always keeping Phantom Singularity and Soul Rot together is kinda hard on this fight so feel free to use them on CD. Since there are constantly 2 targets don't forget to spend your shards to not overcap. Remember that when all three dogs are dead Huntsman gets +100% additional damage so keeping a burst for it will significantly increase your overall damage.
Sun King's SalvationSingle Target/AoE
Try to do the most damage to priority targets and keep agony on other adds. During the shade phase always make sure to have a few shards for Cloak of Flames.
Artificer Xy'moxSingle Target
Hungering DestroyerSingle Target
Place your Demonic Circle near your camp.
Lady Inerva DarkveinSingle Target
Don’t forget to re-apply dots on your main target before dotting any new adds. Once you got all the dots up you can freely spend your shards.
The Council of BloodSingle Target/Cleave
If you don't have a boomkin druid and you need damage for the adds you can switch from Siphon life to absolute corruption instead. (Tier 2 talent)
With single target build don’t forget to keep your agonies on as many targets as you can for shard generation.
Stone Legion GeneralsCleave
Sire DenathriusSingle Target / Cleave
Pre-cast seed during first phase to snipe the adds, and also don’t forget to snap shards from them.
During the second phase prioritize your damage on Sire and Remornia. Cleave the adds when possible. Last phase is pure ST with slight movements, don’t forget to utilize your Demonic Circle to deal with Shattering Pain and Blood Price.