Precise Strike

When you make a Strike with an agile or finesse melee weapon or agile or finesse unarmed attack, you deal 2 additional precision damage. If the Strike is part of a finisher, the additional damage is 2d6 precision damage instead.

As your swashbuckler level increases, so does your additional damage for precise strike. At 5th, 9th, 13th, and 17th level, increase the amount of additional damage on a Strike by 1 and the additional damage on a finisher by 1d6.