A Vanilla Warcraft (1.12.1) addon that plays a warning sound when you mouseover a rare, elite or dangerous mob.
This addon was not created by me. It was created by "Klas" a member of <Still Alive>.
MouseOverSounds is highly customisable, allowing you to select how much higher level (or lower) a mob should be for each warning sound.
Optionally, any mob that is not a Warrior (ie. Casters, Healers, etc.) will have "+2" added to their level to help highlight them.
Example: You have are lvl 20, you "Medium Warning set to "2" and you come across a level 20 caster. The Medium Warning sound will still play. Even though the mob is not level 22.
You can find the options for MouseOverSounds in the game's Main Menu (Esc).
A small sound can also be played for any mob that gives exp, is a mob needed for a quest (if you have pfQuest installed).
A sound will also play any time you mouseover a chest. Or herb/mine if you have those professions.
Install location should be: ..\Interface\AddOns\MouseOverSounds