Aura of Unluck

Type of Feat: Class
Prerequisite: Hexblade level 12
Once per day, a Hexblade of 12th level or higher can create a baleful aura of misfortune. Any melee or ranged attack made against the Hexblade while this Aura of Unluck is active has a 20 % miss chance. Activating this aura is a free action, and the aura lasts for a number of rounds equal to 3 + the Hexblade's Charisma bonus (if any). At 16th level and every 4 levels onward, a Hexblade can use his Aura of Unluck one additional time per day