Shadow Noose(Tome of Battle: The Book of Nine Swords, p. 79)
Shadow Hand (Strike)
Level: Swordsage 6,
Casting Time: 1 standard action
Range: 60 ft.
Target: One flat-footed living creature
Duration: 1 round
Saving Throw: Fortitude partial
As you foe struggles to ready his defenses, you make a subtle gesture in the air. A noose formed of shadow drops from above him, wraps around his throat, and hoists him aloft. His limbs flail as he struggles to free himself from the strangling noose.
As part of this maneuver, you form a noose of shadow that wraps around your target and strangles him. This maneuver works only against a flatfooted target. As part of this maneuver, you make a ranged touch attack against a flat-footed creature within range. If it hits, your opponent takes 8d6 points of damage. In addition, he must make a successful Fortitude save (DC 16 + your Wis modifier) or be stunned for 1 round. A successful save negates the stun, but not the extra damage. This strike has no effect against nonliving creatures, such as constructs and undead.
This maneuver is a supernatural ability.