drop arcane barrage from your rotation during ANY phase. Its a dps loss compared to Arcane Missiles.
The only time you should be using arcane barrage over arcane missiles is when you are moving... spam icelance and Arcane barrage when its off CD in places like Hagara ice phase.
Reforge all hase out that you can. Preferably to mastery, if the item has mastery then crit. (this is provided you have the 17% hit cap... if not reforget your haste to hit insted until you hit that point. Always remember that any hit over 17% is wasted, so get as close to 17% as you can. Its OK to get to 16.5% or over. 0.5% below hit cap means you will miss 5 out of 1000 spells.... not a great deal tbh, but using something like RAWR and the RAWR addon can help with reforging to get the max potential from your gear,
Also, switch to the burning phase when there are about 35-40 seconds left on the CD for Evocation.... the timing depends on your gear. You wan to hit about 35% mana JUST as evocation becomes available.... any time evocation is just sitting there not on CD is a DPS waste (apart from during the first burn phase at the pull ofc).
During the burn phase, when you are at about 90% mana, pop your mana gem to bring you back to 100% mana - that helps in 2 ways - your mana gem gives you an increase in spellpower when you take it, and you also get more damage the more mana you have.
Dont forget to pop Mage ward on a regular basis. There are sooo many fights in DS where you take damage that will proc off Incanters Absorbtion and give you up to 2k spell power. Nice to use it JUST before a burn phase.... its like a timed power torrent proc. I wouldnt be too generous with popping mana shield though except for places like Spine Heroic JUST before the tendons come up. With Mana shield and mage ward popped, you can get over 3k Spell power for the burst phase on the tendons...
During the mana conserve phase, you want to stay around 90-95% mana. Generally thats 2-3 Arcane blasts, then arcane missiles. You dont want to be any higher than 95% mana as you run the risk of your mana regen bringing you over 100%, which is a dps loss, as you could have cast arcane blast instead of arcane missiles each time it happens. Having your mage armor over-fill your mana bar in itself isnt a dps loss, it just means your rotation was slightly off, so you cast the wrong spell, resulting in a dps loss
Edited by Boradan, 28 July 2012 - 11:37 PM.