One of the scenes from the anime series Full Metal Alchemist where Roy Mustang (a flame alchemist) goes absolutely berserk on Envy who is one of the members of the 7 deadly sins.
Roy Mustang shows just how powerful he truly is. His ability to manipulate the hydrogen and oxygen particles in the air around any individual and create an instantaneous explosion shows how special of a character he truly is.
In the world of flame powered individuals in both Anime and Characters, who do you think would beat Mustang in a one-one-battle? Who ever faces up against Roy will truly have their hands full.