There are number of different ratings for both NPC and monsters around Atreia. The only way to tell the difference of two NPCs/monsters is to look closely at the target frame, the heath bar that shows up when you click on the NPC / Monster. (Anyway, don't look too close to the screen. It's not good for your eyes ^w^ ) Knowing the meaning of each frame is surely going to help you decided whether you should solo this monster/quest.
Well...knowing the rating of your enemies is not exactly all you need to know about it. Aion have a system called "Target Emblems" which can be seen on the left side of the health bar. The color of the emblem indicates whether it is hostile or non-hostile and the dots on the emblem denote difficulty of the target in relation to others of its kind.
Target Frame/Rantings (monster rank)
OFFLINE
