Psionic Fist

Type: Psionic
Source: SRD

You can charge your unarmed strike or natural weapon with additional damage potential.

Str 13.

To use this feat, you must expend your psionic focus. Your unarmed strike or attack with a natural 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.