Bring the voodoo feathers to Ashlam Valorfist.
Now we must combine the inert scourgestones and create a weapon to shatter the ranks of undead. This is no trivial task, <name>. Only the trolls of the sunken temple carry the kind of rare magic able to turn the evil of something against itself.
Have you slain the wretched trolls?
This is excellent, <name>. I would say I am surprised, but I knew without question that you wouldn't let us down.
It is my honor to bestow one of the Holy Mightstones to you. Use it well.
Upon completion of this quest you will gain:
The temple that Commander Ashlam Valorfist speaks of is the Temple of Atal'Hakkar, also known as "The Sunken Temple", in the Swamp of Sorrows. The trolls are on the level above the serpent statues. The feathers you gather are a group loot - anyone on a quest needing them gets one.
The reputation gain was increased from 350 by patch 2.3.0.