My Guild is starting to work on Horridon and Council, so I figured now was a good time for me to change from Destro to Demo. I've spent the last couple days trying to learn the spec, and I've made a couple unsettling observations. I'm hoping I've got it wrong here.
Destro is dead easy, the rotation only uses 4 spells: Chaos Bolt, Incinerate, Conflagrate and Immolate.
Conflagrate flows seamlessly into Incinerate spam, and Immolate doesn't feel like it interrupts what your doing. Your always casting, which feels good.
Burning Embers last until you use them, and with 40 'bits' to 4 Embers, you don't often run the risk of being Ember capped before you want to spend them.
Mana is never an issue if your on one target and gearing for haste.
This means your just spamming Incinerate/Conflagrate, reapplying Immolate every 15 seconds, and Chaos Bolting alongside Dark Soul.
Demonology has it's own equivalents of the same spells. You have Soul Fire, Shadow Bolt, Hand of Gul'dan and Corruption. All good right?
This is where it starts to go wrong for me though. In the same gear, with appropriate glyphs/talents, that 4 spell rotation nets me 75k dps as Destro. The same rotation in Demo nets me only 50k, so fully 50% less damage for the same amount of effort. Ouch!
To up your damage, you add Life Tap, Doom and Metamorphosis into the rotation, so now your at 7 spells versus Destro's 4. Worse, your having to manage Mana, Molten Core stacks (which can fall off unlike Burning Embers), Doom, Corruption and Demonic Fury. All at the same time!
Destro only has to watch 2 things, while Demo players are keeping an eye on 5.
When it comes to AoEing, Destro adds Brimstone and Rain of Fire into the mix, bringing them up to 6 spells. Demo adds in Hellfire, Void Ray, Immolation Aura (which functions differently to Hellfire) and Carrion Swarm. Bringing them up to 11.
Demo has no easy way to DoT up all the targets, and has to apply two DoTs to to each mob as well.
TLDR: Destro only uses 4 spells in a fight to DPS, with a total of 6 if AoEing. Demo seems to use 7 spells, 11 if AoEing. Destro only has to manage Immolation and Embers, Demo has to manage Mana, Molten Cores, Doom, Corruption and Demonic Fury.
Demo players seem to need to work damn hard, but personally I do 75k Dummy DPS as Destro, and 65k with what I think is a perfect Demo rotation. I'm using a whole lot more abilities, but I'm actually doing less damage, and it doesn't feel very good. Have I missed something?