Listen, I know you can smell the fel blood pools behind me and I'm sure you've seen the crystals that grow out of them. These crystals have special properties from the ashes of Archimonde that rain down on this side of the hill. Something about how they are formed makes them especially good at draining fel energies, which is a big problem for someone like me, but they can still have their uses. I want you to gather some for me. Try and get a few kinds. I'll know what I need when I see it.