Doctor Doom has always been among the most imposing threats in the Marvel Universe. Few villains rival his malevolent power, and even they know to approach the ruler of Latveria with caution. Since his debut in 1962's Fantastic Four #5 (by Stan Lee and Jack Kirby), Doom has spread his plague of evil throughout the Marvel Universe.
Source：https://www.cbr.com/secret-wars-god-emporer-doom-powerful-form/
