Needs review
Source: Rokugan Campaign Setting

Description: You can use barehanded attacks to strike at your opponents Void

Prerequisites: Base Attack Bonus +3, Improved Unarmed Strike, Void Use, WIS 15

After striking a target with an unarmed melee attack you may spend any amount of your Void Points to activate this feat. Your opponent is forced to immediately expend and equal number of Void Points without effect. If your opponent loses more Void Points than they currently have in reserve, he cannot recover Void Points for a number of days equal to the difference.