Simon Scania
One of the Eight Heroes and a Wizard of the Koenigsegg Empire. Had Arthur Gaz's right leg. Spoiler After the war, he was betrayed by his best friend and wife and left to die. In anger, Simon created a fog machine fueled by Arthur's leg which causes illusions on the affected where their loves one betray them so they would feel the pain he felt. When Toru and his group finally destroys the machine, they discover Simon has been dead for a long time. In the anime, Simon is discovered to be still alive but has gone mad and delusional. (Source: Wikipedia)