Cloak of Deception(Tome of Battle: The Book of Nine Swords, p. 76)
Shadow Hand (Boost)
Level: Swordsage 2,
Casting Time: 1 swift action
Duration: End of turn
The shadows around you seem to surge forward and engulf you. For a brief moment, they render you invisible.
When you initiate this maneuver, you turn invisible, as the greater invisibility spell (PH 245). You remain invisible until the end of your current turn.
This maneuver is a supernatural ability.