Disarm Mind

Mental Adversary (PsH3_) , CHA 13,

You deplete a number of power points equal to your Charisma modifier x 4 from your opponent on any psionic attack that deals 1 or more ability damage, after accounting for your opponent's mental hardness. To use this feat, you must pay power points equal to the cost of the psionic attack + 3. You decide whether or not to pay the extra cost after discovering the failure or success of your psionic attack to deal ability damage.

You deplete a number of power points equal to your Charisma modifier x 4 from your opponent on any psionic attack that deals 1 or more ability damage, after accounting for your opponent’s mental hardness. To use this feat, you must pay power points equal to the cost of the psionic attack + 3. You decide whether or not to pay the extra cost after discovering the failure or success of your psionic attack to deal ability damage.

You can directly deplete your foe’s power point total with psionic attacks.