*PTR tries not to get desperate by his Senseis words*
I will try as hard as i can Sensei!!!
Well, Katon...Katon (fire) is one of the basic 5 elements.Katon users can turn their chakra into fire.They first heat up their chakra into their lungs and then they release it from their mouth.It's mainly an offensive element with long/mid range jutsus that can deal great damage to the enemy.Naturally,katon is weak against suiton as water extinguishes fire but if combined with a wind style jutsu (as wind amplifies fire) it may become powerful enough to counter it.Fire style is mostly common with shinobi of Konohagure.It was also the most common affinity among the members of the Uchiha clan.In fact the children of the clan needed to learn how to perform "Fire Release: Great Fireball Technique" in order to be considered adults.It's also component of three kekkei genkais:Lava release,boil release and scorch release and of the kekkei tota

ust release.Some known users of fire release are:Hanzo,Kakashi Hatake,Roshi,Jiraiya,Hiruzen Sarutobi,Mei Terumi and Onoki.