Warning: Spoilers for Fantastic Four #28

Doctor Doommay seem all-powerful, but even he has a weakness that theFantastic Fourjust discovered. Try as they might, the members of the Fantastic Four have never vanquished the threat of Doom for good, and they’ve now found a weapon that can succeed where they have failed over the years. However, Doctor Doom isn’t one to go down without a fight, even against his version of Kryptonite.

InFantastic Four#28 by Ryan North, Steven Cummings, Wayne Faucher, Jesus Aburtov, and Joe Caramagna,Reed Richards reacts to Doctor Doombecoming the Marvel Universe’s top villain by studying magic. To aid him in this endeavor, he and the Invisible Woman travel through time with the Black Knight to locate a Fated Sword with magical properties.

Fantastic Four 28 Doctor Doom reveals the sword Reed Richards and Sue Storm found is the Doomblade

In the end, Victor von Doom appears to reveal that he tricked them into uncovering the sword’s location.The sword turns out to not be the “Fated Sword” and is instead the Doomblade, Doctor Doom’s ultimate weakness in Marvel lore.

The Doomblade: Doctor Doom Reveals the Only Weapon That Can Damage Him

Doom May Be Powerful, But Even He Is Vulnerable to This Ancient Sword

The sword the Fantastic Four find is known as the Doomblade, and according to Doom, it is"the one magical weapon that could hurt me".Created in the 1300s, the location of this artifact has long been a mystery even to Doom, hence why he goes undercover to enlist the Fantastic Four’s help. ManipulatingReed Richards' geniusto carry out his wicked deeds, Doom procures the weapon and proceeds to destroy it so that it cannot be used against him. Reed and Sue’s blunder inadvertently strips Marvel’s superheroes of a surefire method to eliminate Doctor Doom, granting him a clear path to power.

“He Can Do It Better Than Anyone”: Doctor Doom Is the Sorcerer Supreme, And He May Be Marvel’s Best Yet

Even before taking on the mantle of Sorcerer Supreme, Doctor Doom has long surpassed Stephen Strange as the world’s most powerful sorcerer.

Doctor Doom is stronger than he’s ever been before, making the Doomblade the only possible way for Marvel’s heroes to strike him down before he can enact his plot. He ascended to the role ofSorcerer SupremeinBlood Hunt#4 by Jed MacKay and Pepe Larraz, replacing Doctor Strange and gaining access to endless reserves of magic to wield as he pleases. With theOne World Under Doomeventrapidly approaching, the Fantastic Four are desperate to stop Doom before it’s too late. Unfortunately,the Doomblade’s destruction has sealed the Marvel Universe’s fate.

Fantastic Four 28 Doctor Doom destroys the Doomblade and says it is the one weapon that could hurt him

Without the Doomblade, Doctor Doom Has Officially Become Unstoppable

The Fantastic Four Is Powerless Against Sorcerer Supreme Doom

Now that Doctor Doom has eradicated the Doomblade, the Fantastic Four’s heroes have squandered their best chance at thwarting his plans. The tiny modicum ofmagic that Reed Richards can harnessis barely enough to teleport himself and Invisible Woman to safety from Doom’s clutches, so he lacks the proficiency to combat his opponent’s full mystic arsenal empty-handed. Doom is already on his way to being Marvel’smost powerful Sorcerer Supremeto date, and now he’s virtually unstoppable. TheFantastic Fourwill need to find a new plan to take downDoctor Doom, since the only weapon that can kill him is not an option.

Emperor Supreme Doctor Doom is surrounded by flames of magic.

Fantastic Four #1 2022 Comic Book Cover