Shadow Distortion (3.5e Maneuver)

You strike the sorcereress, twisting her beautiful face into an aberrant mockery that is simply wrong.

Make a melee attack. In addition to normal damage, the target must make a Fortitude save or become distorted by the plane of shadow. They effectively translates into 1d10 ability damage of an ability score of your choice, and a -4 penalty on all Charisma based skill checks for 24 hours. The ability damage, unlike most ability damage, can't decrease the score below 1. Continued exposure to reality eventually removes the damage and penalties in 24 hours.

If the creature is on the plane of shadow, this attack is even more effective. The duration becomes permenant, and can only be restored through the use of regenerate and higher when they are no longer on the Plane of Shadow.