Alright this guy is not that easy, but i got him down

Paladin tank 33k hp's and most of my shaman are 4100 or so gear score. All elemental

I waited till he pathed towards the back so I didn't get LOSed all around. Bloodlusted on the first round , and really tried to get the adds and him down asap.

Spot healed for the most part using LHW till the boss went to the back. Then i ran the entire group behind a rock and chain healed up to full while clearing debuff.

2nd round after first debuff I used divine sac and divine protection continued to focus my burn and spot heal. Dropped fire elementals on this go to finish down all the adds. Took one more round and boss went down. Frost resistt aura seemed to help alolng with healing stream x4.