I've seen one sell for 150kCR in the AH, one traded for a Green Tabard, and one guy who I offered 190kCR for it, but he changed his mind, and used it instead. I'm disappointed that I couldn't get to the other two fast enough.

So, I'm offering 200kCR for the Ghostly Aura. Send me a message here, or in game, if you want to sell it. Thanks! :)

IGN: Knightydood