We started stacked up, so as soon as 5 drop below we got instantly in p2. Our healers let us drop as soon as he starts to cast in a crazy speed.
We kited him in a triangle as mentioned above. At 8-10 stacks we opend the door and moved to the center of the room to start p1 again.
this is the only fight in the entire zone that we have opted to add a 3rd healer for.
On the pull we roll every single cooldown we have and get to 28-32 stacks of Acceleration and he is usually between 60-65% hp. This makes the tail end of the fight a complete joke assuming you can stay alive.
We did Water, Nature then Fire.
Lineup:
Tank-Druid/Paladin
Healer-Resto Shaman, Holy Paladin, Resto Druid (offspec)
DPS- Fury War, Enhance Sham, Shadow Priest, affliction lock, fire mage.
On the pull we dont CD for probably 5-6 acceration then we do the following:
-Tree of Life + Small personals
-Enhance AG + HTT
-Rallying Cry / Demo Banner
-Devo Aura (which makes you immune to interrupt) + Tranq
-2nd Devo Aura (back to back to immune interrupt) + Resto shaman Ascenence
-Spirit Link + HTT
-BoP DPS casters and BoP Resto Shaman for maximizing Healing Rain and chain heal spam
This always got us to 25-32.
It's a great start to the fight and makes the dps requirement much less later on.