Omen of Clarity

Omen of Clarity is a passive level 33 Feral and Restoration druid ability. For Feral, your autoattacks to give a small chance to make your next Shred, Thrash (Cat Form), Swipe (Cat Form) or Brutal Slash cost no energy. For Restoration, the periodic healing from Lifebloom gives a 4% chance to make your next Regrowth cost no mana.

Improvements

 * Moment of Clarity

Tips and tactics

 * As the cost of the next ability is reduced to zero, the Clearcasting state is best used to cast an expensive spell or use an expensive ability.

History
At the time of release, Omen of Clarity was a talent available in the balance tree which applied a weapon buff to the druid's melee weapon. The clearcasting state gave mana-free spells only (not rage or energy-free feral abilities) and could only be triggered by the druid meleeing in caster form (not by attacks in bear or cat form, and moonkin form did not yet exist).

The original balance tree was exceptionally unpopular among druids, and Omen of Clarity with its requirement for significant caster-form melee was an obscure talent in that tree.

Patch 1.8 radically changed the talent by:


 * Making it a buff on the character instead of the weapon.
 * Allowing it a chance to proc on all melee attacks, including those made in feral forms.
 * Expanding clearcasting to give free feral abilities, as well as free spells.

This transitioned an obscure balance spell into a very potent feral combat spell.