Initially, when the game began, the drop for this was much needed. Now, there is an abundance so doing this event when you have killed enough in Dark Wood is not even worth wasting your time.
Change the drop to a legendary or something that is potentially more useful, be it a green, a rune or something that is not in abundance. Even randomizing the above would be even more enticing.
Same goes for Blood Rose, Sand Golem/Hydra as once the Iben Fahd gem is gained it’s almost not worth doing anymore.
Thanks