What a light blade lacks in weight and power, it makes up in accuracy. In your hands, this advantage becomes even deadlier when your foe's defenses are down.
Benefit: You gain a +1 feat bonus to weapon attack rolls that you make with a light blade. In addition, you gain a +1 bonus to the damage rolls of weapon attacks that you make with a light blade against a creature granting combat advantage to you. Both of these bonuses increase to +2 at 11th level and +3 at 21st level.
Essentials pg 315