High Priest of Val'Marr

Since Live 24 update this nolonger works to my knowledge however i have went to the NE tower and killed to the top then camped the top floor killing all that pops on the ledge 2 times now and priest poped the time can be 10 min to 2 hour spawn  you get a respawn there about every 6 to 10 min  with 3 spawns at a time to kill i was in my 30's when i did this and most was grey to me till the priest spawned and he was green i recomend this done with atleast 2 people though depending on your lvl as they are heroic mobs and not soloable at 33 by a warden unless they are twinked then it might be possible hope this helps somone looking for this mob