Webthunder breathing is the idea of using blinding speed to close the distance against the opponent and take them out within a single strike. The user puts all their energy into. Webin demon slayer, zenitsu creating a 7th form of thunder breathing during his fight with kaigaku. Here’s how it works. Webthe forms are mainly used for offensive purposes, but some of them can be used for defensive purposes too, like the 3rd form: Scattering mist splash, and 6th form: Webof all the breathing techniques in demon slayer, thunder breathing is one of the most powerful. Here's every type of attack within this technique.