Dire Blademaster's Form (3.5e Maneuver)

The Dire Blademaster’s Form is a favored fighting style of Coin’s Edge adepts, constantly peering through probability to ensure every blow landed is life-threatening.

While in this stance, you gain a +5 luck bonus on attack rolls made to confirm a critical hit. In addition, whenever you make a successful critical hit, the attack deals an additional 3d6 damage.