Inaccurate?

Supreme Blade Parry

(Tome of Battle: The Book of Nine Swords, p. 70)

Iron Heart (Stance)
Level: Warblade 8 (Three Iron Heart maneuvers),
Components:
Casting Time: 1 swift action
Range: Personal
Target: You
Duration: Stance

You drop into a relaxed pose, allowing your defenses to flow naturally and easily. Your blade lashes out to absorb or deflect each attack you face, blunting the force of your enemies? blows.

As a student of the Iron Heart discipline, you learn that a simple flick of the wrist or turn of the blade can transform a deadly strike into a wild miss. In battle, you enter a steady rhythm that makes you frustratingly difficult to fight. You disrupt each attack with a perfectly timed counter, leaving your foes? strikes weak and ineffectual.

While you are in this stance, you gain damage reduction 5/? against any opponent that does not catch you flat-footed. To gain this benefit, you must be proficient with the weapon you carry. You gain this benefit while unarmed only if you have the Improved Unarmed Strike feat.<