Megatron

Megatron is in many ways, a fallen hero. He rose up from the oppressed lower working castes of Kaon to become a champion in the region's illegal deathmatches, Megatronus; who named himself after one of the original thirteen Primes, he called for an end to Cybertron's decrepit caste system and told the downtrodden that freedom of self-determination was the right of all sentient beings. But absolute power corrupts absolutely and Megatron's Decepticon revolution, like many such movements, ended up becoming a whole new tyranny. Powerful, charismatic, violent and full of rage for any; who would stand in the way of his ambition and drive, Megatron brought Cybertron past the brink of destruction.