Crane Riposte

Combat

You use your defensive abilities to make overpowering counterattacks.

Prerequisite: Crane Style, Crane Wing, Dodge, Improved Unarmed Strike, base attack bonus +8 or monk level 7th.

Benefit: You take only a –1 penalty on attack rolls for fighting defensively. Whenever you use Crane Wing to def lect an opponent’s attack, you can make an attack of opportunity against that opponent after the attack is def lected.

Source: Ultimate Combat