Rezu

In the underworld he was known as "Abaddon" which translated to "The Destroyer", Rezu always talked about how he was going to kill every mage standing in front of him, but no one believed that Rezu was powerful enough to say this and laughed about him.

Rezu however, besides being a strong mage, was a really intelligent man and he used the people around him to do as he wished.

Rezu had eternal hate for the Magic Council, believing that it's solely purpose was for the members to have a position of power, the Magic Council became arrogant over time, and that only fed Rezu more.

Rezu was a free agent who used his magic to hunt, kill and kidnap people in exchange for money, almost like an ordinary hitman. However in the background he also used his capabilities to make the lifes of the members of the Magic Council really hard. He led a group of criminals who often launched terrorist attacks, and tried to turn the people against the council.

However, in the year 249 Rezu fell into a trap of the Magic Council, and they locked him up.

In the same jail, after weeks people started to dissapear from the surface. Raigo, the headmaster of the Magic Council, didn't trust the situation and organized a transport for Rezu to a solitary prison in the far north.

However, when they were ready to transport him, Rezu was ready to brawl. That day the entire magic council got wiped out, and with it, their building.

Rezu died in the battlefield, due to his wounds but his statement became crystal clear to the world. He smiled, and couldn't close his eyes even after his death, while he wiped out the Magic Council he rambled about how no one in this world is untouchable and he just proved it