Spiritual Force
(Races of Eberron, page 113, DnD 3.5)
[Psionic, Racial]
Your forceful inner spirit allows you to deal more damage with your mind blade.
Prerequisite
Kalashtar, ability to generate a mind blade
Benefit
You can expend your psionic focus to gain a bonus equal to your Charisma modifier on damage rolls with your mind blade. This effect lasts for 1 round.