Fire Release: Iron Cannon Technique

After preforming the hand seals, the user(s) spew a stream of tremendous fireballs which act as artillery fire, doing massive damage where they strike. The technique is even more devastating when using a smokescreen to conceal the fireballs/user(s).

Trivia

 * The "" (鉄砲, "Iron cannon") was a type of cannon used by the Japanese and Chinese around the year 1270. As such, they are the oldest known cannons in existence.