Great Weapon Master Utility 12Blocking Maneuver
Adjusting your grip, you move your weapon to intercept the attack.
Immediate Interrupt Personal
Requirement: You must be wielding a two-handed weapon.
Trigger: An enemy you have marked makes an attack against you
Effect: You end the mark to gain a +4 bonus to AC and Reflex until the end of your next turn.
Special: You cannot mark this enemy until the end of your next turn.
Published in Dragon Magazine 379, page(s) 67.