Vital Strike

Prerequisite: Great Weapon Combat Style, Level 6

You can make a single attack deadlier than normal by aiming for an opponent's vital points. Once per round, when you use the Attack action with a two-handed or versatile melee weapon, you can make one attack that deals more 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.