Vital Strike

(Combat)
You make a single attack that deals significantly more damage than normal.
 

Prerequisites

Base attack bonus +6.
 

Benefit

When you use the attack action, you can make one attack at your highest base attack bonus that deals additional damage. Roll the weapon's damage dice for the attack twice and add the results together before adding bonuses from Strength, weapon abilities (such as flaming), precision-based damage, and other damage bonuses. These extra weapon damage dice are not multiplied on a critical hit, but are added to the total.
 

Combat Trick

If you have a Stamina pool, the following Combat Trick may be used with this feat.
  After rolling the damage of a Vital Strike attack, you can spend 2 Stamina points to reroll up to two of the weapon’s damage dice. (For weapons with more than one damage die, count all the weapon’s base damage dice together as one.) You must take the second result, even if it’s lower.