Fire!

Leonel was like a blazing sun. It felt and even looked as though he was the central star of a world. Even the splintered steel walls around him began to turn a fierce shade of red, causing those Invalids who still tried to climb it in his presence suffer a fate worse than death. 

This was none other than the manifestation of the female fire mage's domain. However, Leonel had come to understand that this couldn't be considered to be a true domain. The difference between it and his Chain Domain was subtle, but it was there. 

From his communication with the dictionary, Leonel learned that this went by many different names. Some worlds called it a 'Style', others called it 'Martial Arts', some called it a Dogma or a Dao… 

Ultimately, this was the final branch of what Leonel had categorized as this new world order's power system.