I’ll try to be as concise as possible. This post isn’t meant to be a QQ post, but a compilation of my thoughts on the subject. I do think there are some serious balance issues between pets right now, and I find it hard to believe that all of them are intended.
Before Cataclysm release, Blizzard stated that they were trying to get out of the “one pet per spec” design. From a PvE perspective, right now we reached the extreme opposite, with a situation that could be labelled: “one pet for every spec”.
The Sims recently showed the Succubus to be the best single target pet for both Demonology and Affliction. And wouldn’t it be for Burning Embers and Empowered Imp, Destruction would have probably been using the Succubus too. As it turned out that Lash of Pain critical hit chance was being overestimated, EJ was proven wrong.
Yet, everyone has to realize that this is the result of awkward in game scaling: LoP being a spell but not benefiting from the spell crit debuffs or spell crit rating from the Warlock. If the succubus was benefiting from crit, as she should be via pet scaling, we would still be using her.
Now, as 4.0.6 is getting closer, the buff to the Imp’s Demon Soul effect and the fact that Firebolt is correctly scaling with debuffs and the warlock’s ratings, are pushing the little green thing as the go-to pet for the three specs.
Why is that?
1. “Basic attacks” and their interactions with Mana Feed
Mana feed only procs off basic attacks. But Firebolt and LoP are spammable whereas Legion Strike and Shadowbite both share a 6 sec cooldown. Which means that even if the Felguard and Felhunter dps was higher than the Imp’s (it’s not), they’d still have to make up for the dps loss of a three times smaller mana supply, forcing the Warlock to Life Tap more often.
2. Unbalanced glyphs
Glyph of LoP increases LoP damage by 25%. Glyph of Imp increases Firebolt damage by 20%. Glyph of Felguard increases Legion Strike damage by 5%.
As the Succubus and the Imp have no other attack than LoP and Firebolt, both glyphs effectively increase their dps by 25 and 20%. Glyph of Felguard increases its dps by 1%. Glyph of Felhunter actually increases nothing.
Because of the aforementioned reasons, Affliction is pigeonholed with a pet whose Demon Soul effect benefits to a magic school it doesn’t use.
The Felhunter, despite having an obvious synergy with Affliction via Shadowbite and Demon Soul, cannot compete with the Imp or the Succubus, because of its abysmal dps and poor interaction with Mana feed.
While being a signature ability of the Demonology tree (comparable to Conflagration for destro, and Unstable Affliction for Affliction), the Felguard is a dps loss on single target, and has to use AoE abilities on every cooldown (to the point where Felstorm is being macro’ed into most spells) to remain slightly competitive. Yet it is getting a 30% reduction on Felstorm, which will hurt its single target dps as well and is having the same issues than the Felhunter when it comes down to Mana feed.
It wouldn’t sound logical if Conflagrate or UA were a dps loss on single target fights and only worth it on fights with lots of adds, so why is it that Demonology cannot use its signature spell at its fullest?
I understand that the intent may have been to allow Warlocks to switch more conveniently between pets to adapt to boss fights, but right now it just isn’t the case.
I do think we reached the point where we need a clarification from Blizzard if this situation is intended or not.
Note : I posted this on the EU forums, feel free to copy\paste it on the US forums if you think it deserves it. Maybe we can get a blue answer from there.