Fanatic was once the great commander Ezfogen the Merciless, famed for his boundless cruelty. Condemned and betrayed by his own people he miraculously escaped with his life, but his soul had died and his heart turned to stone. He completely changed, renouncing his previous name and establishing the Guild of Bringers of Evil, where he earned fame as a killer completely devoid of moral principles and feelings of compassion.