Yes, those are two.Two ways, as a distraction and since you said it burns up air it could be used in trap methods to suffocate an enemy.
Also to cause panic...
Yes, that is the main way.You would become immune to katon and suiton attacks. Cold fire inside near the body, hot fire outside towards the incomming attack.
(punches him with a fist of sand) -.-Engulf yourself in flames and use a substitution with Shijutsu Kikon Yuugi (Dark Medical Technique, Death Preservation) to leave behind a charred body... probably not the way you was thinking though....
no, but that works too.Engulf yourself in flames and use a substitution with Shijutsu Kikon Yuugi (Dark Medical Technique, Death Preservation) to leave behind a charred body... probably not the way you was thinking though....