Class is a term in WoTS that refers to the four Classes with abilities linked to the behaviors of warriors from Japanese history. They include Samurai, Shinobi, Bushi, and Sohei.
As of the MoM rule set, Classes have been all but abolished in competitive play. Only a few groups use them in practice, and they are not used in inter-shogunate meetings at all, except for special occasions. However, the teachings individuals have learned from classes has shaped their gameplay in interesting ways.