Fire Release: Great Dragon Fire Technique

The user compresses a large amount of chakra built up inside their body and changes its shape into a dragon-shaped fireball. The user then skillfully manipulates that great fire, and attacks their opponent. Even outside of the attack range, its power and reliability are stressed. The flames have a high temperature, as they can create an updraught which in turn can give rise to thunder clouds. A master of this technique can fire off several flames in succession. Anyone caught in the technique could potentially be reduced to ashes.

This is the setup that Sasuke uses in order to perform Kirin.