SRD:Psionic Weapon

Psionic Weapon [Psionic]
You can charge your melee weapon with additional damage potential.

Prerequisite
Str 13.

Benefit
To use this feat, you must expend your psionic focus.

Your attack with a melee weapon deals an extra 2d6 points of damage. You must decide whether or not to use this feat prior to making an attack. If your attack misses, you still expend your psionic focus.