From Compendium of Worldly Lore
Needs review
Source: Way of the Ninja
Description: A kata that channels your negative energy outward to cripple a foe by disrupting their energy flow.
Prerequisites: Improved Unarmed Strike, STR 14, DEX 16, 3rd Level Ninja
Required for: Blackened Caress
This kata requires you to use only unarmed attacks; the use of a weapon disrupts the energy flow of this kata depends on and instantly cancels the remainder of the duration. You must land a successful unarmed attack on an unarmored portion of the opponent's body (a completely armored opponent would be immune.) An opponent who is struck by this attack must make a Fortitude save (DC 10+ your Wisdom modifier) or be stunned for one round. If a stunned opponent fails his save against this kata he is knocked unconscious for one hour. If you take more than ten damage (subdual or actual damage) during the duration of this kata, the kata ends.