Is that true? I actually never noticed .-. I know HEALING doesn't heal the person in the field, but I didn't know damage is negated too.
Not using Fire Blast IMO. I've never bothered with DoT spreading unless Fire, which has IB in its rotation anyways.
As far as gear goes, you're using a spirit ring... Yeah, that should be replaced with almost anything. (Suggestions: Exalted Klaxxi = Mastery Hit 489, VP from Golden Lotus = Haste Hit 489, VP from Shieldwall = Crit Haste 496, Vizier drops a Hit Haste 496). Armory also says you have 14% hit and 0% expertise... Not sure if that counts Draenei's 1% but if it does, make sure you get 15% (though I'm assuming it doesn't count it so I don't REALLY want to question your intelligence xD)
By your longest attempt (
http://www.worldoflogs.com/reports/v...?s=5296&e=5653), I see you're using the Barrage rotation, but... You're using a HASTE build? Barrage isn't exactly ideal with Haste being your stat of choice, as it's much better with Mastery. Scorch-weaving is way better with Haste (though it's a secondary option for Mastery builds). Your bomb uptime is also a bit low. Try using Nether Tempest since you're a Haste build, which gives you a ton more ticks. Also, worst of all, your Rune of Power uptime is under 75%. Seems a bit low for a fight with little to no movement until P3, and seeing as how no one died to anything during a P3 tactic, I'm assuming you didn't MAKE it to P3.
You also shouldn't be bothering with Dissonance Fields unless you have Cry of Terror.