From D&D Wiki
|This material is published under the OGL|
Hostile Mind [General]
Your mind recoils violently against those who use psionics against you.
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 + 1/2 your character level + your Charisma bonus or take 2d6 points of damage.