Insightful Strike, Greater(Tome of Battle: The Book of Nine Swords, p. 64)
Diamond Mind (Strike)
Level: Swordsage 6 (Two Diamond Mind maneuvers), Warblade 6 (Two Diamond Mind maneuvers),
Casting Time: 1 standard action
Range: Melee attack
Target: One creature
Your keen eye picks out the slightest imperfection in your opponent’s defenses. Your weapon becomes a tool of your mind.
This maneuver functions like insightful strike, except that you deal damage equal to 2 × your concentration check result.