A few days ago, I was in a group at MSR (about halfway up the South passage on the right), when we pulled one of these mobs. We were expecting something like a Jord Profet. Don't make the same mistake we did. This thing has approximately the same HPs as Krigers (AKA way too many) and casts shaman spells like the profets. Nasty mob, only got through it with the help of someone passing through to go to the Deep South camp. If you are unfortunate enough to run into one of these mobs below the Towers, please be more prepared than my group was.