Black Flame Attack
The Black FlamesThe Black Flames | Implanted RootsImplanted Roots
Info
Title	Black Flames
Users	Byakuran
Manga Debut	Chapter 280
Anime Debut	Episode 202

The Black Flame Attack is one of Byakuran's more powerful techniques, used after his wings turn black. Before Byakuran uses this technique, black roots shoot out from his legs and implant themselves in the ground to stabilize him. Next, Byakuran concentrates black Flames from his hand that rotate at an extremely high speed and then releases it as a blast.
The power of this technique is unknown, but it was able to hold a full powered X-Burner at bay for a while before it finally gave way.