Här är strategin för att spöa Kuunavangen ikväll:
Defeating Kuunavang
After breaching the last barrier, a cutscene will play and then the party will be standing face to face with Kuunavang at the top of the temple. She will be called Enraged Kuunavang and presumably her attacks and power will be augmented.
This battle is more-or-less the same as your previous battles with Kuunavang, except: (1) your melee attackers can now reach Kuunavang, and (2) you are in an enclosed area which will rapidly become filled with Corrupted Dragon Scales if you fail to interrupt Kuunavang's casting.
The first thing to do, immediately after the cutscene ends, is to scatter/fan out. Sometimes Kuunavang will cast Corrupted Dragon Scales the moment the battle starts, and follow up with Dark Chain Lightning immediately after that. If she does this, and your entire party is still standing in the spot you were in at the end of the cutscene, you will all be knocked down in the scales, which will probably kill too many party members for you to recover. By fanning out, you limit your losses to one or two party members at most, should Kuunavang begin with this most deadly opening move.
From there, battle Kuunavang as before -- dish out as much damage as you can and make sure to interrupt the Corrupted Dragon Scales (and Dark Chain Lightning if you have the interrupts to spare).
If Kuunavang does manage to cast any Corrupted Dragon Scales, simply run out of them and continue attacking her. Don't stop to destroy them -- they will die on their own soon enough, and she can create more of them far faster than you can destroy them if your interrupters don't stay focused on her.
It is vital to be mindful of the basics of defeating a powerful foe in this game:
* Bringing interrupts to try to prevent Kuunavang from invoking her skills will work. However she is resistant to interrupts so it takes two or more to stop her from casting. Dazed works well, but the duration of conditions is shortened and needs to be reapplied often to be effective.
* Bring armor-ignoring skills if possible as they will inflict their damage equally regardless of Kuunavang's high level.
* Wastrel's Worry is particullary useful in dealing damage because hexes expire faster on Kuunavang allowing the hex to be reapplied often.
* Grenth's Balance is a very effective way for recovering from spikes and dealing massive damage to Kuunavang. Frontline Warriors can bring this skill without losing combat potential.
* A Necromancer with Spinal Shivers or Shivers of Dread along with a Ranger with Greater Conflagration and Winter can be very helpful for interrupting Kuunavang. Greater Conflagration + Winter will turn all physical and elemental damage into Cold Damage, meaning that it will trigger Spinal Shivers and interrupt Kuunavang.
* Also consider a Ranger with Broad Head Arrow and Needling Shot. Once Kuunavang has been brought down past 50% health, a ranger can use Needling Shot at no recharge. With the long duration dazed condition from Broad Head Arrow, a ranger can easily lock down Kuunavang by continuously using Needling Shot, refreshing the daze as needed. Needling Shot also deals armor ignoring damage, making it ideal for high level targets like Kuunavang. A zealous bow is recommended.
One Final Note
Don't rush. The strategy outlined above will virtually guarantee a time well under the master's cutoff without any rushing. (Its author completed the mission using an elementalist with 15-henchman team in about 8 minutes.) Both Kuunavang and the afflicted can be finished quickly and easily if you hang back and fight them alone, but a battle against both of them together will drag on as you spend more time on self-preservation than doing damage. Moreover, rushing into such battles is a very good way to get party members killed, costing you even more time to revive them.