Prerequisite: Dexterity 13 or higher
You've learned how to carefully study your opponents' weak spots and attack when they least expect it. You can select this feat multiple times. Each time you do so, you gain the next feature on the list.
DEADLY FORCE (2ND TIME SELECTED)
Wherever you roll a critical hit on a weapon attack, roll another d20. On a roll of 15-20, you quadruple the damage dice of the attack rather double it.