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Mordru

Mordru (also known as Mordru the Merciless) is a fictional character, a supervillain in the DC Comics' main shared universe. He first appeared in Adventure Comics #369 (June 1968).

Mordru is the most prominent Lord of Chaos and is fated to survive even after the end of the universe, although he is usually shown as a powerful wizard. While he is sometimes depicted as a present-day adversary of the Justice Society of America and the Lord of Order known as Amethyst, Mordru's primary foes are the Legion of Super-Heroes in the future world of the 30th and 31st centuries. He is arguably the team's most powerful enemy.