Shriekwing is a pure single Target Boss.
You want to look out for the boss ability Bloodgorge. This makes the boss go immune, so make sure you do not use any cooldown right before as you won’t have them after the intermission for some time. This boss is really simple so there is nothing to add.
Huntsman AltimorSingle Target / Cleave
This boss is a two target Cleave for the most part, with some adds to cleave.
Barghast spawn Shades of Barghast. You will want to cc them with either traps or any other cc from your raid members as the adds gain Destabilize. Since the adds die really fast, you probably won’t wait to use Volley on them and will just use on cooldown.
Sun King's SalvationStacked Cleave
Artificer Xy'moxSingle Target
As a Hunter, you can do bombs 3 times.
Hungering DestroyerSingle Target
Lady Inerva DarkveinSingle Target / Cleave
The Council of BloodSingle Target
This fight is single Target for the most part, but also with some adds.
This is also a pure single target fight.
Whenever Sludgefist reaches 100 energy he will target a player and charge in their direction. This player will want to get behind a pillar so the boss smashes into it. When Sludgefist smashes into the pillar he gains Destructive Impact which makes him take 100% more damage for 12 seconds. You will want to line up your cooldowns for when he is vulnerable as it really makes a difference.
Stone Legion GeneralsStacked Cleave
This is a fight where there is a lot of AoE involved as well as some single Target burst situations.
Sire DenathriusStacked Cleave
When Sire reaches 70% he will cast March of the Penitent so make sure you do not use any cooldowns.