Needs review
Source: Rokugan Campaign Setting

Description: Your fury in battle is terrifying to behold

Prerequisites: Base Attack Bonus +6, Void Use

Required for: Tsuko's Storm

You can spend a Void Point to produce a fear effect in a ten-foot radius, plus two feet for every level you have attained. This effect is identical to that of a Fear spell that lasts for a number of rounds equal to your level and effects every enemy in the area of effect, with a save DC of 14 + your Charisma modifier. This is an extraordinary ability.