Type of feat
Dex 13+, Wis 13+, Improved Unarmed Strike, base attack bonus +8 or higher.
Required for
Extra stunning attacks, Improved Stunning Fist

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. Constructs and undead are immune to this attack, as are any creatures that are immune to critical hits.


Note: Monks receive this feat for free at 1st level, even if they do not meet the prerequisites. As well, monks suffer no attack or damage penalties when using this feat and may use it once per day per level.


As of patch 1.23, Stunning Fist does not work on creatures immune to mind-affecting effects.

Also, monk levels don't stack with non-monk levels for the number of uses per day as they should, with monk levels overlapping non-monk levels. This means a multiclassed monk will only have a number of stunning fist attacks equal to his monk level, regardless of his other levels.