I just did this on my level 46 hunter and it was a breeze. Tasgall himself has a ton of hp so he can easily take on a single mob and can tank the elites if you don't pull too much hate off of him. Just set a trap before each fight for crowd control and to give yourself a breather after you pull the agro onto yourself. I never dipped below 50% health and Tasgall's hp bar never even seemed to hardly go down at all so I let him take on all of the normals by himself.
Edited, Jul 5th 2009 2:11am by pvlSixtyFour