The Black Flash is a powerful technique in Jujutsu Shenanigans that allows the user to move at incredible speeds for a short period of time. It is a difficult technique to master, but it can be devastating in the right hands.
To perform the Black Flash, the user must first build up a large amount of cursed energy. They then focus this energy into their legs and release it all at once, propelling themselves forward at incredible speeds. The Black Flash can be used to close the distance on an opponent quickly, or to dodge an attack at the last moment. It can also be used to create powerful attacks, such as the Black Flash Uppercut.