UW - Restore the monuments of Grenth. Reaper of Ice Wastes question

Me and my friend tried to do this quest, we managed to free Reaper of the Forgotten Vale. Once we came to Reaper of Ice Wastes we had to defend him from Terrorweb Dryders. Everything went well until we both just died and got kicked out of UW.
The reaper wasn't dead, in fact, he was at full hp and none of Dryders were even close to him.
What were we doing wrong?

U need to Defend also Ice King , he spawn in the midle of Ice Wastes , so when dryders will apear u can't let them go any where.

Oh, okay, thanks, I'll go try to find him

its pretty hard to do it with the 2 of you, but the way we always do it:
the monk is going to stand at the front of the statue , not on the platform where the statue is itself but like in the open area where they all spawn, the necro stays near the statue untill the monk is ready and accepts the quest and runs towards the spawning dryders and SS's them...after a while 3 dryders will go and try to kill the reaper...but let the monk put a breeze on him and he'll live

How many in the group?
If its only both of you and both of you died then thats it, you will be sent back to ToA.

As soon as a group wipes in FoW or UW it gets sent back to ToA

Well it surely is hard since it spawns 15-20 terrorweb dryders. Tried about 6-7 times and succeed only 2 times
They drop good tho, seems like they have higher chance to drop ectos than Aatxe/Smites.