Greater Psionic Fist
( Expanded Psionics Handbook, p. 47)[Psionic]
You can charge your unarmed strike or natural weapon with additional damage potential.
Prerequisite
Psionic Fist (XPH) , STR 13, base attack bonus +5,
Benefit
When you use the Psionic Fist feat, your unarmed attack or attack with a natural weapon deals an extra 4d6 points of damage instead of an extra 2d6 points.