Duplication Magic is a form of magic which allows the user to create duplicates of themselves.
Summary[]
Duplication Magic allows the user to create duplicates of themselves to either confuse their enemies or attack them in large numbers in order to overwhelm the enemy through the numerical advantage it provides.
Youkai such as Sun Wukong and Bikou have the ability to create clones of themselves through the power of Youjutsu.
Aži Dahāka appears to have great mastery over Duplication Magic, as he has been shown to be capable of creating hundreds of clones of himself. Clones created by Aži Dahāka could use magic to attack, including forbidden techniques. Vali Lucifer noted that these clones shared Aži Dahāka's appearance & aura.