I have experienced something quite interesting as i have been leveling my Warrior, and figured I would share it here with the MMOwned community. (If this is a Repost I looked and found nothing, if this is working as intended although tooltip says nothing about it, again... Sorry.)
When you use intimidating Shout it fears all enemies (Up to 5) Within 8 yards for 8 seconds. Although the target you are targetting does not move, but rather gets rooted in place and his allies get feared to all hell.
I find this very useful for PvP, and quests such as the Forsaken Courier where the Quest Mob you must slay has 4 guards, although when targetting the Courier and using fear he stays there, you kill, loot and run.
Have Fun =), Newbie to MMOwned out.
*Edit
1. Target Mob you want to Root
2. Use Intimidating Shout
3. Target is rooted, have a hay day.