Stunning Fist (NWN)

Specifics
A character with this feat can attempt a disabling strike with a -4 attack penalty and a -4 damage penalty. If successful, the target must succeed at a Fortitude save (DC 10 + 1/2 the attacker's level + the attacker's Wisdom modifier) or be held for three rounds. This attack may be used once per day for every four levels of the character.