Fear was a Mastery 2 spell was originally taught to a Kuni by a Daidoji shugenja in the 9th century. The Kuni rarely use the spell, although the ones who are good at it become valuable assets to the Hida on the wall. The spell causes air spirits to begin screaming in a language chosen by the shugenja. The effect can be quite disheartening to anyone who knows the language the spirits are screaming in, and Causes subjects to flee in terror.