SRD:Mindcrusher

Mindcrusher: Any psionic creature struck in combat by a mindcrusher weapon loses a number of power points equal to half the amount of hit point damage the weapon deals (only the base damage of the weapon contributes to the power point loss; additional damage from high Strength or other sources does not cause additional power point loss). A psionic creature that is out of power points (or has none) must succeed on a DC 17 Will save or take 1d2 points of Wisdom damage.

Strong psychometabolism; ML 12th; Craft Psionic Arms and Armor, psychic vampire; Price +2 bonus.