Mind Strike
(Complete Psionic, page 56, DnD 3.5)
[Psionic]
When you use your psychic strike ability, you deal more damage.
Prerequisite
Ability to generate a mind blade, psychic strike +1d8
Benefit
If you expend your psionic focus when you imbue your mind blade with a psychic strike, the destructive energy instilled in your blade deals one more die of damage. For example, when a 7th-level soulknife charges his blade with a psychic strike in conjunction with expending his psionic focus, the damage potential of the blade is +3d8 points (instead of +2d8 points).