I have been looking for this earring for quite some time now because I seem to kill a lot of demons while working on my npc. If anyone has information as to where it comes from, I would love to know. Not many sell in AH on Seraph and price is at about 1M so it seems.
Allakhazam added some info so I found it, seems Garrison-Kuzotz Region drops this and a few other killer effects earrings as well.
Edited, Jul 10th 2006 at 5:02pm EDT by SeraphSeka