Become a fire shaman berserker and channel primordial fury into searing blades and devastating fire spells. For the opener you want to put Flame Shock on your target and then jump in with a Fiery Heroic Leap which boosts your fire damage with 15%. Follow that up with a quick Stormstrike and then a Lava Lash. As the cherry on top - hit them with an instant cast, guaranteed critical Lava Burst for huge damage. Rotation is very simple - Lava Lash, Stormstrike, Lava Burst. Make sure to enchant your main hand weapon with frostbrand and your off-hand weapon with flametongue for maximum potential.