Weapon of Awe

Transmutation [emotion]
Level: Artificer * 2, Cleric */Oracle * 2, Inquisitor * 2, Paladin * 2
Components: V, S, DF
Casting Time: 1 Standard Action
Range: touch
Target: weapon touched
Duration: 1 minute/level
Saving Throw: Will negates (harmless, object)
Spell Resistance: yes (harmless, object)
  You transform a single weapon into an awe-inspiring instrument. The weapon gains a +2 Sacred Bonus on damage rolls, and if the weapon scores a critical hit, the target of that critical hit becomes Shaken for 1 round with no saving throw.
  This is a mind-affecting Fear effect. A ranged weapon affected by this spell applies these effects to its ammunition.
  You can't cast this spell on a Natural Weapon, but you can cast it on an unarmed strike.