Even when facing a larger foe, you aren’t afraid to take great risks in order to finish the fight.
Against a creature of size Large or larger, you can make a single melee attack as a full-round action, gaining a +4 bonus on the attack roll, damage roll, and critical confirmation roll. You gain an additional +1 on this bonus at base attack bonus +11, +16, and +20 (for a maximum of +7 at base attack +20). After you resolve your attack, the opponent you attack can spend an immediate action to make a single melee attack against you with the same bonuses.
You can combine the full-round action attack this feat allows with the benefit of Vital Strike, Improved Vital Strike, or Greater Vital Strike.
The text on this page is Open Game Content, and is licensed for public use under the terms of the Open Game License v1.0a.
Sources:
SECTION 15