Crimson Lotus: Phoenix Blade

is a Fire Dragon Slayer Magic Spell.

Description
While in Dragon Force, the user surrounds their entire body with the golden fire granted by the Flame of Rebuke and then propels themselves toward the target, leaving behind a long wake of flames, and hitting them with a devastating headbutt. This unstoppable and destructive spell was used to defeat Zero and destroy one of Nirvana's leg powered Lacrima.