Spec Specific Azerite traits
Avenger’s Might: While Wings/Crusade is active your mastery is increased by 700 (amount varies based on the item level of your Azerite armor).
Light’s Decree: The Holy Power you spend in wings/Crusade deals Holy damage per Holy power spent to all nearby enemies. This trait also increases wings/crusade by 5 sec.
Relentless inquisitor: Spend Holy power to grant 16 haste for 12 sec per Holy Power spent, stacking up to 20 times (values vary based on the item level of your Azerite armor).
Recommended Azerite Traits
Cleave or m+
You could also run 3x lights decree on single target, but the RNG needed for this to do the same damage or more I think, on average, is not worth it for stable dps; If there is cleave or AoE on any fight then yes go Lights Decree.
Vision of Perfection
As of right now this Essence is by far the best because it has been buffed in 8.3, and with us playing 3x Avengers might trait, this combos so well with this essence. Note that if you play with crusade you start at 1 stack, if it procs and if you play with normal wings you will get a 100% crit on your first templar's verdict.
Condensed Life Force
Condensed Life Force: Will Summon a Guardian for 30 sec. That will deal some damage to your main target every 2 sec and every 8 sec will deal some aoe damage as well. Now for the good part, every time the guardian casts a spell you gain 2% Haste stacking up to 5 times. 3 min cooldown.
The minor is pretty much just some single target damage and when it deals damage, all damage you do to that target is increased by 5% for 6 sec.
This used to be the best essence however this was heavily nerfed in 8.3, it's still good, but if you compare it to Vision of Perfection major it's not even close. Combo this with Vision of Perfection minor and your first and third Wings will have this up. The main downside to this is the 3 min cooldown, so on some fights this is not worth it. For AoE I'd go with Vision of Perfection or blood of the enemy instead.
Blood Of The Enemy
Blood Of The Enemy: Deal AoE damage around you when used and for the next 10 sec gain 25% Crit Strike Chance and stack your minor faster. At rank 3, when used, you also get increased critical hit damage by 25% for 5 sec on targets hit.
Minor: when you crit with your spells you gain a stack of blood soaked, increasing your crit by a small bit stacking up and once you get to 40 stacks you gain around 500 haste for 8 sec. Note that at rank 3 you have a 25% chance to get the haste at 30 stacks instead of 40.
This essence is pretty strong for nuking down aoe adds or single target priority adds. This is also the essence I used on our world first azshara kill, seeing as my job was to aoe the adds. So if there is any fight that requires you to nuke an add down this essence is by far the best you can pick for those kind of fights.
The Crucible Of Flame
The Crucible Of Flame: Cast a flame on the target dealing some damage, you also gain a stack making your next cast of flame do 100% more damage. This will reset after 3 stacks and has 2 charges with a 30 sec cooldown.
Minor: Your spells have a chance to put a debuff on your target making it take some fire damage for 10 sec stacking up to 3 times.
Pretty simple essence overall not much to say, the pure single target damage is pretty decent but for cleave or aoe I'd go for something else. However, if this is all you have on a new character then it's a good pick. Also the minor is very strong.
Worldvein Resonance: Concentrate energy into the Heart of Azeroth, immediately causing 3 Lifeblood Shards to erupt from the nearby ground for 18 sec.
Minor: Every 1-25 sec, a Lifeblood Shard erupts from the nearby ground for 18 sec.
This essence has been Buffed in 8.3 heavily on the major, the minor stays unchanged. On a 1 min cooldown this essence could be very strong but compared to the other majors this one is just pure main stat.
Breath Of The Dying
Breath Of The Dying: Burn your target with a bolt of Azerite, dealing x Fire damage. If the target has less than 20% health or more than 80% health, the cooldown is reduced by 30 sec. If Reaping Flames kills an enemy, its cooldown is lowered to 5 sec and it will deal 100% increased damage on its next use.
Minor: Your spells and abilities have a chance to strike your target for x Fire damage, and heal you for 50% of the damage dealt. If your target is below 20% health, the chance for extra damage is increased by 400%. Corruption Resistance increased by 10.
This is one of the new essences. The Major is alright but the main one here is the minor, the damage it does and the 10 corruption resistance is pretty insane for a minor when you can pick 3 minors in 8.3.
Memory of Lucid Dreams
Memory of Lucid Dreams: Increasing your holy generator by 100% for the next 15 sec.
Minor: Your Holy spenders have a small chance to refund 50% of the holy power used. The first refund gives 1 holy power back and the second refund gives 2 holy power back and then back to 1 and so on.
This is a full RNG essence, this is because it has a chance to be good allowing you just to spam templars, or it could just for the 12 sec give you a bit more holy power making the other essence stronger overall. But for that short 12 sec window you can unleash some insane damage if lucky. The minor for this is very strong and could be used in many places, the major just kinda lacks compared to others. Minor is very good in m+ or heavy aoe fights.
Essence Of The Focusing Iris
Essence Of The Focusing Iris: When channeled deal high fire damage to all enemies in front of you for 3 sec.
Minor: your spells have a chance to grant you haste for 4 sec stacking up to 10 times, if you swap targets you lose the stacks.
Pretty much an aoe essence in my opinion. I can't really see many places this is used other than in m+ or aoe bosses unless some tuning comes in and buffs it for single target because you can't use spells in the channel. The minor is very strong if used a lot.
Right now as of typing this it's very early in the sims, but this is what was found.
There are a lot of just straight up Corruption procs that just do simple damage like stars or void, which I expect to be nerfed pretty hard.
What I think you should look for are the simple ones as I expect them to stay un-nerfed seeing as they are not too overpowered and are pretty decent. These are the ones that simply just give you x haste or mastery or crit for x sec, like Honed Mind/Surging Vitality and so on.
1. Infinite Stars
Infinite Stars: Your spells and abilities have a chance to strike a nearby enemy with an Infinite Star, and this increases their damage taken from your Infinite Stars by 25%, stacking up to 10 times.
Right now this sims insane compared to anything else, it's pretty simple, it procs and does damage and the more procs and stacks you have the more damage. I do expect blizzard to nerf this before Mythic raiding.
2. Echoing Void
Echoing Void: Your damaging abilities build the Echoing Void. Each time it builds, Echoing Void has a chance to collapse, dealing 2.50% of your Health as Shadow damage to all nearby enemies every 1 sec until no stacks remain.
Another just proc one, if stars gets nerfed and this stays similar then this will jump to number 1 unless this also gets nerfed, this one on AoE fights or m+ is just crazy compared to anything else.
3. Twilight Devastation
Twilight Devastation: Your attacks have a chance to trigger a beam of Twilight Devastation, dealing damage equal to 18.00% of your health to all enemies in front of you.
Not a bad one at all. I can see a lot of m+ pulls where this one can be used, but for pure single target look at the other 2, unless changed.
4. Honed Mind - Surging Vitality - Racing Pulse
Honed Mind Gives you 915 Mastery for 10 sec.
Surging Vitality gives you 728 Versatility for 20 sec.
Racing Pulse Gives you 1275 Haste for 4 sec.
These 3 sim pretty much the same, so not much to say here other than I believe these 3 to be the main ones. Seeing as they are not overpowered at all, I don't think blizzard will touch these and will instead nerf the top 3 instead. So, don't be mad if you get any of these, you can just sit on them until Mythic week to see the changes.
All the other effects sim way less than these, so once sims are more stable I will update this.