User blog comment:B214/Question and Answers 6/@comment-82.2.190.195-20161106002621/@comment-10330822-20161108103425

He already can breath out to blanket out a sky with it, and uses Blazing Inferno of Scorching Flames. He's got pretty good control as is if you ask me. Besides, his lack of control over his fire probably steams from the fact he can't control his Dragonification. The Ex chapters show that he does eventually gain control over the latter, so he probably learns how to breath fire with the best of them as well.