We just died at the same quest for the 3rd time: Grenths Servants (the one in the ice world, where you have to defend the ice king and the ghost at the monument)
How do you win this quest? We were only 7 ppl (one got disconnected) we split our team in 2 groups:
R, E and Mo -> defend the ice king
R, E, W, Mo -> defend the ghost at the monument
But there were so many Dryders, that the group at the ghost got killed very quickly, The ice king group stayed longer alive, but also got killed. We even used the winter ritual to help the ice king stay alive, but it helped only a little.
What strategy do you use to win this quest? It is no big problem to defend one guy, but to split the team for defending 2 guys always kills us