Northern Sky

Princess Huhuran

Frenzy: As in all Frenzy attacks in the game they can be tranquilized by the hunters, this is no exception.
Poison Bolt Volley: 1500-2500 damage on impact to the 15 closest targets. Only occurs when Huhuran is in frenzy mode.
Noxious Poison: 2900 damage over 8 seconds. Random area of effect spell that will silence the targets.
Wyvern Sting: 15-yard area of effect sleep. If cleansed deals 3000 damage.
Acid Spit: 219 damage to 281 damage per second; stacks 99 times affects only the main tank
Berserk: At 30% health, Huhuran's attack speed doubles, and she releases poison bolt volleys every 3 seconds to the 15 closest targets.

Preparations:

In this fight you will need 15 players with exquisite nature resistance gear. The goal is to have those players have 240+ NR and ready with greater nature protection potions.

Once she nears the 30% health level those 15 people should be standing as the picture shows in a “V” formation around her protecting the players without the nature resistance behind them.

In addition you need to have a priest in each one of the teams that will take the hit from the Volley once she Berserks, their primary job is to spare as much mana as possible during the fight and dispose of it through Prayer of Healing for the last 30%.

Aggro management:

We use three tanks to keep her in check, a tank with 300+ nature resistance can’t handle more than 13-15 stacks of the Acid Spit, and it seldom gets resisted or reset.

Tank Switching:

The tank switching in this fight should be fairly easy, once the stack is at 9, the main tank should stop any special attacks while the next tank in starts to do everything in his power to gain aggro, at some point the switch will be made and you can ping-pong back and forth between those two tanks, don’t forget to keep up the previous tank he will most certainly have a stack of 10 on him.
The third tank is just a precaution in case one of the tanks should die, he can step in and the circle is closed again.
A very important side note is that you need to have cleansers near the tanks to remove the Wyvern sting on the OFF-TANKS ONLY, you should never remove it of the main tank nor any other close combat class that may be in the area, the damage they will take will drain the healers for mana and might even kill them as well (that was OFF-TANKS, in case you missed it, NOT the MT or rogues!!).

The Fight:

As far as the fight goes the first 70% of it is really a cake-walk, the damage output on the raid is minimal. The only ones you need to keep up at all times are the 3 tanks which will take up most of the healing. All classesneed to save any high cooldown abilities until that phase, be sure to have the druids ready to innervate the priests that are healing the nature resistance people (at around 35% if needed, otherwise when the Poison Volleys start to fly), if they die it’s most certainly a wipe. Make sure that everyone drinks a greater nature protection potion if it’s available shortly into the 30% stage; dont drink it right before, wait until a PoH has been cast by your group's Priest but you are not at full HP. Drink the pot at this point, absorbing the next 1-2 hits and giving your healer a break.
Remember to Tranquilize her as soon as she frenzies you don’t want any unnecessary damage during the first 70%, healer mana is a precious thing in the latter stages of this fight and all heals should be kept on the main tanks.

Source: http://wow-inner-sanctum.org/Web/forums/9051/ShowPost.aspx