This is a cool thing I found while I was messing aroundin Shattrath. Requirements:
1) Gnomish Mind Control Cap (haven't tested with Priest MC)
2) At war with Aldor (scryer gaurds aren't humanoid)
3) Way to get to Aldor Rise
Ok, so put on the mind control cap....and mind control a guard! You will get the little action bar, and on it, will be the ability "Exile." You can Exile any attackable NPC on Aldor Rise, including gaurds, the High Priestess, and other NPC's. I don't have a high enough priest, so I only know it works with Gnomish Helmet. I would appreciate it if someone could maybe find a duel spot in Shatt so you can use it on players. Sorry for long post.