Fire Release: Great Fireball Technique

A technique where chakra kneaded inside the body is converted into fire and expelled from the mouth either as a massive orb of roaring flame or as a continuous flame-thrower. The scope of the attack is altered by controlling the volume of chakra that is mustered. The released flames will engulf their target, and leave a crater on the ground's surface. This technique apparently requires more than average chakra reserves and most genin should not be able to do this technique.

Trivia

 * This technique was originally created by the Uchiha clan and it's unique to them.