Ntsd 26 Hell Moves Direct

This created a "phantom hitbox." Even if your opponent substituted behind you, the lingering chakra from the Rasengan would clip them. Players called this the 26 Phantom . It allowed you to force a substitution and auto-punish it without any delay.

You're referring to the popular internet creepypasta "SCP-26" or more commonly known as "Hell Moves" from the NTS (NoEnd House or more commonly No Tell, No Stories, No Spoilers web serial that got adapted) . ntsd 26 hell moves