Isshi

Isshi was a shugenja who retired as a monk of the Temple of Osano-Wo on the Plain of Thunder. A group of samurai reached Isshi's hut and requested his scroll of the Wrath of Osano-Wo spell, on behalf of a daimyo who wished to crush a rebellious underling. The monk agreed but reminded that this spell could not be unleashed without drawing blood, so their cause had to be just. Once in possession of the spell the daimyo ordered an attack, taking a scorched earth policy to every place they go, burning fields, houses and entire towns to the ground.