First, when you get near your objective, cast Aura of Restoration and Conjure Flame. Next, run and aggro target group. When they're close, start casting Meteor Shower, then WAIT before using Bed of Coals, (this is unbelievably important), then Smolderwing Embers, and Fire Storm as quickly as possible. Now start attacking for adrenaline. When you have enough adrenaline or near enough, you now cast Bed of Coals and use Earth Shaker. Make sure you keep Conjure Flame up as well, and use Crude Swing to do around 50-70dmg extra to all weaklings surrounding you. It may sound complicated, but it's easy when you have a little practice. By the way, use Crude Swing when possible (unless saving it for Earth Shaker) for it has only a 5 second cooldown and only consumes 5 Energy.