Crazy about Crystals quest

[Joryan]

Hello,
a new player here - currently level 44 Monk - trying to do the aforementioned quest. It requires clickling on two destinations and then killing mobs which spawn there.

Now my problem: on top the 2nd destination sits a level 50 monster (Kurrea). And the destination upon clicking spawns 3 Nixes right next to Kurrea.
If I just stand there, the Nixes chain-pull me which aggroes Kurrea who then easily 2-shots me.
If I try to run out of LoS of the Nixes to avoid the pull (Sticky Tongue I think it's called) at least 1 of the Nixes de-aggroes and the objective resets.
Asking in chat for tips and/or help yielded zero replies.

Anyone has an advice for my predicament or - worst came worst - can at least tell me when does this Kurrea despawn? Thanks in advance.

[Katro]

Now my problem: on top the 2nd destination sits a level 50 monster (Kurrea). And the destination upon clicking spawns 3 Nixes right next to Kurrea.

That sound like hunt monster if your call it out in zone chat or place A rank in party finder some high lvl player will come and kill it I also believe it does despawn after awhile not sure on time