PvE Event: Munin the Ancient Library Keeper

[Sephalo]

A little note about the tactic:
In this event it is crucial for players to discuss which rune warriors they are going to kill during the Stone Form ability. 3 Rune Warriors will stand near the tomb while 2 Rune Warriors will stand on the left and right ramps. Because of this it is wise to put melee damage dealers on the ones near the tomb so they don't have to run up and down the ramp. With a good group you will be able to get down 2 or 3 rune warriors before Stone Form ends.
You really have to think about which rune warriors you kill and base your choice on the setup you have.

If you have much melee damage dealers it might be wise to kill the rune warrior casting Rune of Power so it is easier for your melee to dodge the thunderclaps. However, if your melee never dodges the thunderclaps anyway it might be better to kill an other rune warrior then.
A group with a good geared tank can chose to not kill the rune warriors casting Rune of Strength and Rune of Vitality.
Keep in mind that Rune of Earth might look like a harmless rune, but in the last phase there will be lots of Rockfalls, making it harder to dodge them all.

In my opinion the best would be to kill the rune warriors casting Rune of Strength or Vitality + Rune of Earth. Since the tank damage is high I would suggest to make sure the boss won't get Rune of Strength and Vitality at the same time.
The rune warrior you most likely won't have to attack is the one casting Rune of Sturdiness.