Leveling a new balance druid

Leveling a new balance druid, and because I can heal after almost every fight I have been getting along fine. I hit a road block, however, when trying to kill Isha Gloomaxe for a quest in Thousand needles. She is a 42 elite which you take out with the help of a buy wow gold sentinel that accompanies you for this string of quests. Isha kills the sentinel by the time you get her to 1/4 health, and then proceeds to hit you for ~800 melee and 1600 mortal strikes. It can't be healed through, let alone able to cast any damage spells while spam healing.

I am all for a harder leveling process, but I challenge anyone to do this fight right now with an appropriate level character and tell me this is how it should be.