Divine Surge, Greater

(Tome of Battle: The Book of Nine Swords, page 58, DnD 3.5)

Devoted Spirit (Strike)

Level: ; Crusader 8
Prerequisite: Two Devoted Spirit maneuvers
Casting Time: 1 full-round action
Range: Melee attack
Target: One creature
Duration: 1 round; see text

A torrent of divine energy courses through you. With supreme force of will, you channel the energy into a devastating attack even as it saps your mortal form.

As part of this maneuver, you make a single melee attack that deals an extra 6d8 points of damage. In addition, before making this melee attack, you can also decide to take a number of points of Constitution damage equal to your initiator level or lower. For each point of Constitution damage you take, you gain a +1 bonus on your attack roll and deal an extra 2d8 points of damage. After using this maneuver, you are considered flat-footed until the beginning of your next turn.