Should spawn an invisible untrackable(by normal means) mob named "An ancient Jarsath" on the east side of zone and watch the hilarity ensue. Need some benny hill music to go along with it. If it could some how death touch when targeted would be extra bonus points.
The fun part for a GM would actually be to watch all the players that instantly teleport to it's location. Hopefully followed by a swift suspension. They don't even try to hide what they're doing and have been killing Phara Dar because of it for weeks.
it can be done... got mine with a little help from a guildy sk and a guildy paladin. sense undead works wonders. that and a little luck on where he pops... not taking away from what your sayin in regards to the players themselves. but just adding that it is possible to get AJ. we got two medallions in FV in approx 4 hours