3e SRD:Mental Adversary
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Mental Adversary [Psionic]
Prerequisite: Cha 13+.
Benefit: The character deals +1 ability damage on a successful psionic attack when he or she pays the cost of the psionic attack +3 power points. The character decides whether or not to pay the extra cost after determining the failure or success of the psionic attack to breach the defenders Will save.
Special: A character can gain this feat multiple times, each time gaining the potential to deal bonus damage equal to the previous damage bonus +1, but at a cost equal to the previous cost plus 8 power points. The character decides what increment of bonus damage to deal within the range granted by gaining this feat multiple times.