FeenixServerProject/Phoenix_1.12_Bugtracker — Issue #345: Omen of Clarity doesn't proc from normal attack
Author: Kasssar
Created: 2011-11-26 14:28:44+00:00
State: open

Tested it in cat form, bear form, druid form and moonkin form. When you just attack the mob, white dmg, Omen of clarity never procs, but it has to.
It procs from yellow damage, If you for example use Claw or Maul, you can get the "Clearcasting" buff and next spell doesn't cost mana.

http://www.wowwiki.com/Omen_of_Clarity
The description here is for newer versions, but there is one for Past Versions as well. Omen of Clarity is supposed to proc if you use your normal attack.