Paulington wrote: »You need to stop her enrage mechanic by unwebbing the obelisks.
Kill a Hoarvor next to an obelisk and it gets unwebbed, do this for all five and all the mobs get stunned and her enrage timer is reset. The obelisks are constantly webbed by small webspinners so you need to keep on top of those too.
The best strategy is to unweb four and "save" the last one by light attacking a Hoarvor so it attacks you (basically no damage) and unwebbing the remaining obelisk when you really need to (when big adds come, etc).