As destruction you should focus far more on the drones rather than the spiderlings. chuck in shadowfury when in range of them, position yourself in the path of one of their lanes and use shadowflame when in range, but otherwise just focus on the drones. they need to die anyways and seeing how weak destruction aoe is, it's better for you to focus on the drones and just provide an aoe stun and 70% slow on the spiderlings when they pass by in range.. 2 aoe spec'd range is more than enough for each spiderling lane.
Is worth to macro Berserker Rage with Bloodthirst ?
Absolutely not. I am not against using berserker rage for rage gain rather than saving it for when you need to enable raging blow but you should still use it manually. For example, if you are high on rage, you want to save it.
Another thing is, you want to time berserker rage with an incoming damage that encounter has, so that you would gain more rage when you are taking the damage and not just the rage that the berserker rage buff itself gives you.
I honestly don't see how The "Apparatus" and "Vessel" could be taken out of the competition, at least when we talk end game concerning the Heroic versions of those two.
While HoR is a very strong trinket it simply doesn't outweigh the pure strength from the other two. Yes, a strength procc to be used together with CoolDowns is strong, but it doesn't line up with Deadly Calm or Recklessness, so in the end it's not entirely good.
I recently switched my HC HoR for a Normal Vessel to be used together with a Heroic Apparatus, and I've yet to see a decline in my damage. A Procc trinket is simply too inflexible to be used as an argument for higher item level trinkets. At least that's what I think regarding that.
In the end though the best thing to do is to simulate it. I don't see how it can be a competition though seeing how expertise isn't hard to gain and a procc is so inflexible.
It might want to be noted in the guide that at certain levels the 65 mastery chant to gloves will give more dps than the 50 haste one, notably it seems when it will help you reach another % on the mastery bonus.
Carebare, I found that tons of people don't know that MF and MS was changed in 4.1 to act like a dot and it is roughly 10% or more damage gain to clip them rather than wait them to finish. MF change was mentioned in the patch notes, but MS never got to it and there is nothing about it in the guide here too. I don't know what other info you removed, but if it was also that "useless"...
I want to propose some additions to the OP especially in the Spell Priority section.
About the priority list
The Shadowfiend is a the bottom of the list. It should be way above in priority, at least above Mind Flay (that can be spammed and such you'd never actually end up casting Shadowfiend).
I also think Archangel should be above Mind Blast with no orbs and above SW: D
The Simulationcraft Action Priority List should be the baseline for the priority list in the OP
About the Shadowfiend:
It is worth mentioning that when summoning a pet like the Shadowfiend it takes a snapshot of the caster's stats when casting. And maintains the same stats throughout its duration.
So, always wait for power torrent procs, synapse springs, embroidery, trinkets, heroism, potion etc BEFORE casting the Shadowfiend. For instance, if u cast Shadowfiend and then 1 sec later heroism is popped, the Shadowfiend will not benefit from heroism at all.
About Mind Sear and Mind Flay
As Loot just pointed out, these are considered DoTs and can/should be clipped (recast same spell before it finishes channeling).
Also MF is affected by both Empowered Shadow and Dark Evangelism while
MS is only affected by Empowered Shadow, not by Dark Evangelism (at least this is how it was the last time I checked, can anyone confirm?). Bottom line is that while spamming MS, Empowered Shadow should be up.
Someone had mentioned earlier in this thread that now, Mind Sear if targeting an enemy, it will also damage that target (can anyone confirm?)
About the best opener
DoTs and MF benefit from Empowered Shadow and from Dark Evangelism. So, make sure you have both of these up before going to the normal rotation.
For instance, in heroics, if you have an orb from the previous fight the best opener would be:
(- maybe even start with SW: P to get the 10% MF boost + possible additional orbs)
- MF, clip last MF tick with a new MF. This will get you 5 MF ticks = 5 stacks of Dark Evangelism
- MB with the orbs from before the fight. This will give you Empowered Shadows
- DoTs since both ES and DE are up
- normal rotation
You might be tempted to start with MB + DoTs but this would not give you Dark Evangelism right from the start.
The difference might be small but my point is to highlight the interaction of DoTs with ES and DE.
Haste or Mastery? I'm currently stacking mastery, I have 18.19 mastery without any mastery trinkets or uses/procs. Most of the shamans are stacking haste so I started thinking is it better than mastery? I'm playing as a raid healer, and here is my character (if you wanna take a look and give me an advice ): Mirám @ Ravenholdt - Game - World of Warcraft