Escape Attack( Complete Scoundrel, p. 86)
[Movement, Skill Trick]
You can follow a successful escape with a swift attack.
Escape Artist 8 ranks,
When you escape a grapple, you can make a single melee attack with a light weapon as a swift action against the opponent that was grappling you. The opponent is considered flat-footed against this attack. You must have the weapon in hand at the beginning of your turn in order to use this trick.