The user forms a cage of black flames by manipulating the inextinguishable black flames, that can be used as either a protection or to imprison an enemy.If the opponent tries to escape they will be critically burned. Additionally many spears made up of the black flames of amaterasu can be used to kill the enemy .While used as a barrier the spears can be extended out side of the cage to attack the enemy.
Kekkei Genkai, Ninjutsu, Dōjutsu
