Storm Generation

 is a technique used by the manifested spirit of Chōjirō Sasakibe's Zanpakutō, Gonryōmaru.

Description
Gonryōmaru can generate storms in order to increase the power of his lightning. By holding his crackling pike in front of him and raising his hand in front of his face with two fingers outstretched, Gonryōmaru causes the roof of the shrine-like box on his back to break open and release storm clouds, which fill the sky and bombard his opponents with lightning bolts at Gonryōmaru's command.