Dazing Strike(Tome of Battle: The Book of Nine Swords, p. 67)
Iron Heart (Strike)
Level: Warblade 5 (Two Iron Heart maneuvers),
Casting Time: 1 standard action
Range: Melee attack
Target: One creature
Duration: 1 round
Saving Throw: Fortitude partial
Through focus, raw power, and expert aim, you make a mighty attack against your foe, leaving him temporarily knocked senseless by your attack.
The proper application of force to just the right part of a foe?s anatomy allows you to disrupt his actions. While he stumbles back, senseless, you press the advantage.
You make a single melee attack as part of this strike. If this attack hits, the target takes melee damage normally and must make a Fortitude save (DC 15 + your Str modifier) or be dazed for 1 round.