White Raven Hammer p. 94

White Raven

Level: Crusader 8 , Warblade 8
Prerequisite: 3 White Raven maneuvers
Initiation Action: 1 standard action
Range: Melee attack
Target: One creature
Duration: 1 round

You slam your opponent with a mighty attack to disrupt his senses and leave him unable to defend himself while your allies close to finish him off.

As part of this maneuver, you make a single, devastating strike against an opponent. The raw force of this blow knocks him senseless. Your attack deals an extra 6d6 points of damage and stuns your opponent for 1 round.