Perceptive Reflex (3.5e Maneuver)

''You swore you saw something flicker in the corner of your vision. Without even thinking about it, your eyes focused closer, spotting the assassin before he struck!''

Whenever you make a search, spot, or listen check, you may choose to reroll it as an immediate action with a +5 insight bonus. You must accept the result of the second roll, even if it is worse than the original.