Your mind recoils violently against those who use psionics against you.
Prerequisites
Charisma 15.
Benefit
Whenever you are subject to a power from the telepathy discipline (regardless of whether the power is harmful or beneficial to you), the manifester must make a Will saving throw against a DC of 10 + ½ your character level + your Charisma bonus or take 2d6 points of psionic damage. This damage increases by 1 for every other psi-null feat you possess (+1 with 2 feats, +2 with 3 feats, and so on).
The benefit of this feat applies only to psionic powers and psi-like abilities. This is an exception to the psionics-magic transparency rule.
Special
You cannot take or use this feat if you have the ability to manifest powers, have a power point reserve, or have psi-like abilities.