Blaze Release

is an advanced chakra nature. Sasuke Uchiha uses this technique when modifying the unquenchable black flames of Amaterasu. It is unknown what this nature entails. C states that Sasuke manipulates the flames with his right Mangekyō Sharingan, while he cast Amaterasu with his left. That technique was also seen at the battle of Sasuke with the Hachibi where Sasuke extinguished the Amaterasu flames with his right eye so as to save Karin. That was the first time when Sasuke realised it and actually said that these were the visual powers of his own Mangekyō Sharingan.