Stunning Assault (Combat)Modifier
You powerful but imprecise attacks can stun your enemies.
Prerequisites: Str 13, Power Attack, base attack bonus +16.
Benefit: You can choose to take a –5 penalty on all melee attack rolls and combat maneuver checks to stun targets you hit with your melee attacks for 1 round. A successful Fortitude save negates the effect. The DC of this save is 10 + your base attack bonus. You must choose to use this feat before making the attack roll, and its effects last until your next turn. Each failed save increase the duration of the stun by +1 round.
Essentia: The DC increase by +1 / Essentia