Fire Release: Rage of the Flame Emperor

This is a justu used by Ryūza and Kuro Isei when they are working together.

It begins with Kuro creating his susanoo and Ryūza coating it in his blue flames. This gives his susanoo blue fire wings and makes its two lighting swords coated in blue fire. Kuro then has his susanoo swing its swords creating a giant cross slash of fire and lightning that decimates everything in its path.