2 target cleave boss. Rain of Fire will be a super strong talent here as the boss will be stacked up with the dog most of the time. Also adds in Phase 2 that need bursting down will line up with your 2nd infernal which will be super strong AoE too. The best legendary for this fight is Wilfred’s Sigil of Superior Summoning (the cooldown reduction from this legendary makes your infernal line up with Dark Souls).
Sun King's SalvationHeavy AoE
Add heavy fight in which Scouring Tithe will be very strong for the damage buff and shard generation, can be super strong if done correctly with Havoc. The more shards you can dump into Rain of Fire the more Infernals you will have up doing mass AoE damage. use Wilfred’s Sigil of Superior Summoning legendary.
Artificer Xy'moxSingle Target
Single target boss in which you will want to use Wilfred’s Sigil of Superior Summoning so you can line up your infernals with Dark Souls every 2 minutes. This boss requires high movement so Burning Rush can be put to good use here and you want to go Inferno as you will be casting Rain of Fire on the move.
Hungering DestroyerSingle Target
Single target boss in which you will want to use Wilfred’s Sigil of Superior Summoning so you can line up your infernals with Dark Souls every 2 minutes. Low to medium movement fight. Boss stands still so if you need to move you can cast Rain of Fire on the move.
Lady Inerva DarkveinCleave
There are a few adds that need to be burst down. This is a good boss to do a lot of boss damage with passive cleave to the adds, also really good for Soul Tithe to snipe Soul Shards and get the damage buff. You will want to use Soul Conduit on this boss to help reduce the cooldown on Infernals so that they’re up for every add wave. Use Wilfred’s Sigil of Superior Summoning legendary.
The Council of BloodSingle Target
This is a council boss where you need to kill them 1 by 1 so it's only worth using the other boss for shard regeneration. With really high shard regeneration and Wilfred’s Sigil of Superior Summoning legendary you’re going to have Infernals a lot throughout the fight which is perfect for the last phase as there are a lot of adds. Snipe shards using Soul Tithe with Havoc and keep the damage buff up as much as possible.
Stone Legion GeneralsHeavy AoE
This boss has a lot of add waves spawning so our Infernals and Rain of Fire will be doing a lot of damage here. Really important to use Havoc and Soul Tithe well for shard regeneration to get more Rain of Fires out which will lead to more Infernals spawning. Burning Rush is also really good with the winds and Demonic Portal in case you’re about to fall off so place it in the middle of the room. Use Wilfred’s Sigil of Superior Summoning legendary.