Thottbot:World of Warcraft Mods & Addons
Once you start to play World of Warcraft, it possibly won’t be long before you start getting annoyed by some of the interface. You want to move faster, double-check info simply and save on mouse clicks and keyboard taps.

What is Omen? It is a threat meter. Simply, enemies in WoW decide who to attack by deciding who the most is threatening based on the abilities you use.