Needs review
Source: Rokugan Campaign Setting

Description: You are adept at resisting damage

Prerequisites: Improved Unarmed Strike, CON 15, 10th Level Monk or Inkyo

You may spend a Void Point as a free action to gain damage reduction for a number of rounds equal to your Constitution modifier. The damage reduction is equal to X/-, where X is your level divided by three (rounded down). This damage reduction may not exceed 5/-