Seem to be pretty straight forward fight as she doesn't seem to do anything special, but she must have a lot of HP as she literally drained my merc cleric healing my merc tank. Group were lvl 95 chanter & mage along with lvl 94 druid and 3 J5 mercs(lvl 95 tank, 95 int caster, and 94 healer). I even used a lvl 93 charmed grove coral(?) but could only got her to 11% before my healer merc ran out of mana. Wish she would not aggro on my charmed pet as it was the best dps in the group.
Last named I needed for hunter achievement in this zone, which I worked on whenever I had some time to kill. Which leads me to suspect it's a bit rarer than other nameds but who knows for sure. Still looking for her as of this post.
Of course, she spawns 10 minutes after I make the above post!