Mind Empowerment

(Complete Psionic, page 56, DnD 3.5)

[Psionic]

When you lay low a foe, you drain off a portion of its excess mental energy into the conduit of your mind blade.

Prerequisite

Mind blade class feature, psychic strike class feature, Mind Cleave*

Benefit

If you deal a creature enough damage to make it fall (typically by dropping it to below 0 hit points or killing it) with your mind blade, you capture a greater portion of the creature's liberated energy of consciousness (more than you already drain with your Mind Cleave feat). The additional liberated energy resides in your blade for 3 rounds or until you make your next successful psychic strike (whichever occurs first), whereupon you deal an additional 1d8 points of damage.