Obscuring Shadow Veil

4th-level / Shadow Hand

As you strike your opponent, you summon the fell energies of the Shadow Hand school to rob your foe of sight. Inky, black energy burrows into her eyes, rendering them blind for a few critical moments.   As part of this maneuver, you make a melee attack against your opponent. This attack deals an extra 4d6 damage. If this attack hits and deals damage your target is blinded. A creature blinded this way makes a Constitution saving throw at the end of each of its turns. On a successful save, it is no longer blinded.   This maneuver is a supernatural ability.