Instinctive Consummator

(Complete Psionic, page 55, DnD 3.5)

[Psionic]

You always make good on your threats.

Prerequisite

Power Attack, Cleave, STR 13

Benefit

You must expend your psionic focus to use this feat. Whenever you threaten a living foe with a critical hit on a melee attack, you can choose to automatically confirm the critical hit.

Normal

All hits that threaten a critical hit must be confirmed with an additional successful attack roll.