Soloed lvl 60 Warlock, this guy has been sure buffed since some of the latest patches, I remember 2 manning him with my Rogue and he was much easier with much less hp. Took about 15 fears :/

As mentioned above, be sure to wait for the Alpha respawns to kill them and immediatly pull the elite after u rest cause they have a fairly quick respawn time.

Vayu,
Lightning's Blade EU Horde