Doctor Doom is one of the most unique and interesting super-villains of all time. Doctor Doom, otherwise known as Victor von Doom, is the monarch of Latveria and is the archnemesis of the Fantastic Four. However, despite being one of the most powerful and interesting villains in the Marvel Universe, the character has yet to receive a definitive live-action adaptation. Due to the fact that Doctor Doom is the sole ruler and monarch of Latveria, the character has certain rights that typically come with being a political leader. One of the most obvious of these rights is the notion of diplomatic immunity, which is granted to Doctor Doom.
Doctor Doom’s attempts to contain an expanding black hole resulted in his own near-death but rather than be destroyed, he was simply blasted into a parallel reality. There, Doom gets the chance to meet the man he’s been having visions of throughout the series in a version of Victor who overcame his pride and became the hero the world needed him to be. Victor, along with a still-alive Blue Marvel, is welcomed into the home of this heroic Doom. The heroic Victor tries to convince the Earth-616 Doctor Doom that he can be like him and overcome his inner darkness and in doing so, become a good man. It just requires that Doctor Doom admit his mistakes and move past them.
While revealing just how powerful and at peace this reality has become, Victor is revealed to have collected some of the universe’s most powerful weapons and artifacts, all in the name of mutual disarmament across the galaxy. This includes the Darkhold, the Ten Rings of the Mandarin, All-Black the Necrosword, the Cosmic Cube, the Casket of Ancient Winters, the Crimson Gem of Cyttorak, the Nega-Bands, the Evil Eye of Avalon, the Infinity Stones, and the Ultimate Nullifier. Each of these weapons is contained within a single case in Victor’s home, one of the Marvel multiverse’s most powerful armories, and in the hands of a Doctor Doom who chooses not to use them and instead merely keep them out of the hands of other threats.
Introduced during “The Coming of Galactus” by Stan Lee and Jack Kirby, the device can “nullify” anything aimed at it, destroying the target (and often the wielder as well) and removing them from existence. Rather than utilizing any of the other tools at his disposal, it only took a single press of the Nullifier to wipe all the rest from existence. This seems like the ultimate proof of just how powerful the device is and how good it is that before he fully returned to villainy and his lust for power, his servant Victorious confirmed with Nova that the Ultimate Nullifier has been returned to Galactus and far away from Doom himself.
Doom quickly activates it and destroys not only every single reality-bending artifact in that room with him but the entirety of the whole reality around him. Thanks to his own brilliance and power, Doom can actually use the power of the Nullifier to save himself and Blue Marvel, returning them to Earth-616 as the device destroys all things that ever existed within the noble Victor’s reality, including his family.
On top of being a new low for the Latverian tyrant, this also suggests that Doctor Doom rightly considers the Ultimate Nullifier to be the greatest source of destructive power in the galaxy.