-Like before, I concentrate my katon chakra into my body and from my body into my mouth. When it's in my mouth, I begin to pressure it but while I do this, I also add more chakra to the center of the fireball. I then launch the fireball at your clone, and as it hits the clone. The fireball explodes into a giant pillar of flames which sear and scorch your clone until it disperses.-
Well, the explosion could blind my opponent and create an opening for me to attack. I could also use the light from the explosion to increase my shadow, and surprise the opponent (Nara). Finally, the explosion would make it more difficult for the opponent to avoid the fireball, and it would cause more damage.