Hatorade
A nice asshole.
I'm finding as a fire mage that ilvl means very little for the class, the concept of stacking crit over anything else exponentially increases my DPS. Having to put away 850 gear for 830 gear with crit, kind of blows my mind.
Very true and 48% crit and ilevel 840 vs 51% crit ilevel 331 is something you feel. I think once you get to 850+ mastery will be more and more due to how much damage results from ignite and its effects with the artifact weapon.