Raijū (Yōkai)

Raijū (雷獣, Raijū) are that dwell within thunder clouds, becoming active during thunderstorms.

Overview
Raijū are large beasts that resemble wolves or lions, and usually have bodies made up of lightning. They are masters of Lightning Release and Thunder Release, giving them the power to bend storms to their will. They have the ability to use senjutsu and can teach Sage Mode, but the person who wishes to obtain it must survive "three lightning strikes". Those who fail to do so will succumb to their injuries and die. The Raijū are very callous creatures and their respect must be earned in order to be accepted by them. Those who are respected and worthy of learning Sage Mode from them are scratched across their navels, with the scratch then turning into a seal that marks a contract between them.

Known Raijū

 * Banrai