From DivNull RPG
With this charm, the character clouts her opponent’s ears with a deafening open palm strike. The character makes an unarmed Martial Arts attack as normal. If the attack hits, the target takes a single automatic level of bashing damage and subtracts her Stamina + Resistance from the attack’s successes. If any successes remain, the attack stuns and deafens the target for the duration of the scene. A stunned character suffers a -2 penalty to all dice pools.