You have mastered the deadly fighting arts of your people.
Benefit When you wield a masterwork version of any sword if you act before your opponent during the surprise round, you gain a +2 trait bonus on weapon damage rolls for the surprise round only. This additional damage is precision damage.
Pathfinder Player Companion: Humans of Golarion. © 2011, Paizo Publishing, LLC; Authors: James Jacobs, Colin McComb, Sean K Reynolds, Amber Scott, and Larry Wilhelm.