Needs review
Source: Way of the Shugenja

Description: You can summon the thunder of Osano-Wo, into a single devastating blow that explodes with a burst of thunder and lightning.

Prerequisites: Improved Unarmed Strike, Void Use, Depths of the Void, 13th Level Inkyo

You may spend three Void Points when delivering a successful unarmed attack to summon the power of thunder into the blow. In addition to any damage caused by this blow, the kiho does 1d6 lightning damage per level of the monk to the target to a maximum of 10d6. This is a supernatural ability.