For easy Horde solo:
Pull this guy basically straight back, toward Dawnseeker Promontory. At 42.8 42.2, there is a Mana Collector that will give you a Bloodlust buff.
Kill his raptor, probably while kiting him toward the mana collector, since it has 78K HP.
Once you reach the mana collector, use it and if you feel the need, charge the Sunreaver Ward. Also, ~2 horde-side guardians will attack him. Between all of this, the fight becomes trivial.
The Firespear/Icespear adds will follow you, but the Healer won't so don't worry. Stay out of the icespear/firespear's Line of Sight to avoid the 80K damage magic attacks (They will lock onto your position before firing, and stay locked in that LoS for a few seconds.).
They're fairly easy to avoid since they usually attack at the same time.