Black Fire Technique

The Fire Release: Black Fire Technique is an extremely high-level ninjutsu developed by Kenji Kayuga after witnessing Sasuke Uchiha's Amaterasu. It allows the user to manipulate flames that are extremely powerful, and unlike normal flames, are black in color. The flames are inferior to Amaterasu only in the fact that they can be extingushed; in every other aspect they are equal to the Amaterasu.