WrathionSingle Target / AoE
Tail Swipe makes a return to BfA, so don’t stand behind the boss or inside his body. You want your movement abilities to deal with the other abilities on this fight.
Not a whole lot you can do that's special on this fight as a Demon Hunter. You just have to figure out when your second set of cooldowns are needed.
The Prophet SkitraSingle Target
Dark Inquisitor XaneshSingle Target
The HivemindAoE and Cleave
Shad'har the InsatiableSingle Target
As this is a fully single target fight with a short enrage timer, you will only get 2 uses of Metamorphosis, so you just want to time it the best you can with trinkets or something that allows you to dodge a mechanic.
Drest'agathSpread Out Cleave
Not a whole lot you can do on this fight, you just want to make sure you can get up Chaos Brand on every target that you are killing at the time.
You will want to have your cooldowns for when you get a Void Infused Ichor so you deal the most damage possible to the boss. Preferably this happens with Bloodlust but you don’t want to lose a use of Metamorphosis.
Il'gynothSingle Target / AoE
Using your cooldowns while Il’gynoth is alive and not in the organ phase is likely not as good as having them for the organ phase. This depends on if you are trying to skip a deadly ability combo however.
On the last testings of this boss, you could use Metamorphosis to get in to the middle of the boss area, it remains to be seen if you will be able to do this on live. If you can do this it is extremely useful as you can bait the lasers in to the middle instead of around the room taking up space from everybody else in your raid.
You will want to end up playing a piece with the Revolving Blades azerite trait as it gains the most value on fights like this.
Ra-den the DespoiledSingle Target / Cleave
Carapace of N'Zoth
N'Zoth the CorruptorSingle Target / Cleave
Quite honestly, we don’t know much about these fights because the testings we did for this boss were quite useless. Be sure to check back after we kill N’zoth for actual tips on how to do this fight.