Some psions claim that luck doesn’t exist. You know better.
Prerequisites: Manifester level 3rd, any luck feat.
Benefit: You can expend one luck reroll as a swift action to reroll the damage dealt by a psionic power you have just manifested.
You can expend two luck rerolls as a swift action to reroll a manifester level check.
You gain one luck reroll per day.
Source: Complete Scoundrel, page 80.