Burners

Elemental masters known as "burners" are extremists mages who think their own element is better than the others. So they just try to destroy any other elementalist they meet.

Origins
The name "Burners" is used because the first mages to have done that politic were fire masters, descendants of the archangel Anko, whose thoughts about other elements were pretty much the same. Even nowadays, the more dangerous Burners are high skilled fire masters, who barely accept other masters thinking the way they do.

Strategies
Burners are usually elemental masters, who know their element well enough to know how to use it against others. They are often specialized in one element they have to kill. For example, the first Burners had a huge grudge against water masters, because of the eternal struggle between Anko and her fellow archangel Leviathan, so they became specialized in high temperature manipulation , making water using very difficult (ice melting and water becoming vapor).

Known Burners
The Burner sects are really officious, so very quiet, but a few of them have been met by the cast of Wonder Combat Series.
 * A demon called Micael. A powerful earth master who fought Sojiku Ogami, Pauline Bretijus and Darkness - respectively dark , water and light  masters.
 * An unknown fire Burner fought by waterbender Nolan Redfox in his adolescence. The said Burner burned atmosphere, forcing Nolan to use bloodbending  and allowing him to win the fight. But the tihrteen years old Nolan spared him, and the Burner swore to find him again and kill him.
 * Annaelle Joanson said to her fellow criminal Aaron Brewster she worked for dark Burners at some point, but never said more. She probably does not know more, in fact.