Weapon Finesse

(Combat)
You are trained in using your agility in melee combat, as opposed to brute strength.
 

Benefit

With a light weapon, elven curve blade, rapier, whip, or spiked chain made for a creature of your size category, you may use your Dexterity modifier instead of your Strength modifier on attack rolls. If you carry a shield, its armor check penalty applies to your attack rolls.
 

Special

Natural weapons are considered light weapons.
 

Combat Trick

If you have a Stamina pool, the following Combat Trick may be used with this feat.
  You can spend 2 Stamina points to negate the penalty on attack rolls from your shield’s armor check penalty until the start of your next turn.