Kage Bunshin no Jutsu, the Shadow Clone Technique, comes from Naruto, the manga by Masashi Kishimoto that became a long-running anime from 2002. Naruto Uzumaki learns the forbidden technique early in the story and uses it to create solid copies of himself for fighting, training and pranks. Clips of the chant and the puff of smoke spread through anime edits, reaction videos and soundboards as Naruto became one of the most widely watched anime series worldwide. It remains popular because the line is short, dramatic and instantly tied to the idea of multiplying yourself.