Doctor Doomsday
Doctor Doomsday is one of the deadliest supervillains of the Amalgam Comics. He was the amalgam of Dr. Doom (Marvel) and Doomsday (DC) who fought against the Challengers of the Fantastic, Judgment League Avengers, Magnetic Men, and the X-Patrol, and has the most appearances (supervillain) in the Amalgam comics.