Doctor DoomvsSuperman

Doctor Doom is one of Marvel's most dangerous villains, combining genius-level technology with mastery of the mystic arts. Against Superman, Doom's magical abilities become his primary weapon, since Superman has a well-known vulnerability to magic. Doom's sorcery could genuinely hurt and disorient the Man of Steel.

However, Superman's speed is the critical factor. He can move and react at faster-than-light speeds, and Doom, despite his impressive defenses, is still fundamentally limited by human reaction times augmented by technology. Superman could blitz Doom before most of his spells or technological countermeasures activate.

Doom's best chance is with preparation — if he knows Superman is coming, he could set up magical traps, kryptonite defenses, or technological countermeasures. Victor has stolen the power of cosmic entities before. But in a random encounter, Superman's speed and power advantage is overwhelming.