You can deliver a special unarmed strike that deal extra damage.
Prerequisite(s): Backhand Blow, BAB +9.
BENEFIT
At 10 TP or more, you may spend all TP to deliver a special unarmed strike that takes a place of an attack of a full-attack or just a single attack. This attack deals damage as normal + 2d6 points of damage. At 20 TP or more, you may spend all TP to deal + 4d6 points of damage. At 30 TP, you may spend all TP to deal + 6d6 damage.