Wild AVENGERS: DOOMSDAY Theory Says Tony Stark’s Final Snap Created Doctor Doom

Avengers: Doomsday is only four months away, and some of the biggest questions surrounding the MCU movie are still hanging in the air. We still don’t know exactly what Doctor Doom’s ultimate plan is, and there’s the much bigger mystery of why Robert Downey Jr.’s Victor von Doom apparently looks exactly like Tony Stark.

The easy answer is the multiverse. Doom could be a Tony Stark variant, or perhaps Marvel has some other alternate-reality explanation waiting for us. That would certainly work, but it also feels a little too obvious for a mystery this big.

One new Avengers: Doomsday fan theory offers a much more interesting possibility, and it goes all the way back to Tony Stark’s final moments in Avengers: Endgame.

That theory becomes even more intriguing when you consider that Endgame is returning to theaters on September 25 as Avengers: Endgame Encore. The new version reportedly adds four minutes to the movie, and Marvel hasn’t revealed what those extra minutes contain.

The Endgame Encore trailer hasn’t given away much either, although the re-release is expected to strengthen the connection between Endgame and Doomsday. Four minutes might not sound like much, but Marvel doesn’t need much time to drop one massive piece of information.

What if those extra minutes reveal that Tony Stark’s Infinity Stone snap did more than we originally thought?

Tony’s death remains one of the MCU’s defining moments. With Thanos and his army closing in, Stark gets control of the Infinity Stones, snaps his fingers and delivers his famous “I am Iron Man” before wiping Thanos and his forces from existence.

The power of the stones kills Tony, giving his story a heroic and heartbreaking ending. But what exactly did Tony ask the Infinity Stones to do?

That question is at the center of a fan theory shared on Reddit by user LethalGrey, who argues that Tony may have done considerably more than simply erase Thanos and his army.

The post, titled “There’s no way all Tony did with the Infinity Stones was ‘go away Thanos,’” includes this interesting argument:

“I have a hard time believing that when [Iron Man] snapped, he just willed away all of Thanos’ forces, I think he definitely would have tried to will into existence a way he didn’t die, or a way that the Earth would be protected in the event of his death. This is a genius with an object that can do anything.”

Tony secretly trying to save himself feels like the less convincing part of the theory. By the time he takes the stones, he understands exactly what he’s doing. His sacrifice works because he knows the cost and makes the choice anyway.

It’s also worth remembering how protective Tony was of the life he had built after Thanos’ original snap. During Endgame, he didn’t want the Avengers changing the past in a way that could erase his daughter Morgan from existence. He knew better than most characters just how dangerous it was to start screwing around with reality.

The second possibility is a lot more interesting. What if Tony used the Infinity Stones to ensure Earth would still have a protector after he was gone?

Protection was one of Tony Stark’s biggest obsessions throughout his MCU story. He built Ultron because he wanted “a suit of armor around the world,” only for his solution to become the threat itself. He spent years reacting to the fear that something worse was coming and that Earth wouldn’t be ready when it arrived.

Giving Tony the Infinity Stones, even for a few seconds, gave him access to enough power to reshape reality.

Thanos knew precisely what he wanted when he used the stones. Bruce Banner also went into his snap with a specific goal of bringing back everyone Thanos had erased. Tony was operating in the middle of a battlefield with only seconds to act.

Maybe Tony’s snap included something beyond destroying Thanos. If Stark attempted to create some form of protection for Earth, the Infinity Stones could have interpreted that desire in a way he never expected.

Perhaps his action created, pulled in, or altered a Tony Stark variant who eventually became Doctor Doom. Maybe Doom is the horrifying result of Tony getting exactly what he wanted in the worst possible way.

That would fit Tony’s MCU history surprisingly well. Some of his greatest mistakes came from trying to prevent the next disaster before it happened. Ultron is the obvious example, but the pattern stretches across several of his appearances.

Imagine discovering that Doctor Doom exists because Tony Stark tried one final time to protect the world.

It would also give Downey’s return more meaning than simply saying, “Here’s another guy from the multiverse who happens to have Tony Stark’s face.” Doom’s connection to Tony would come directly from the character’s choices in Endgame, making Doomsday an extension of Stark’s story without undoing his sacrifice.

This is where Avengers: Endgame Encore suddenly becomes very interesting. Those four additional minutes could easily contain a new scene showing an unseen consequence of Tony’s snap.

Marvel wouldn’t need to rewrite Endgame or change the emotional impact of his death. A short sequence could reveal something happening elsewhere in reality at the exact moment Tony uses the stones.

A flash of another universe. A glimpse of Victor von Doom. Some strange reaction to the Infinity Stones. Maybe even an indication that Tony unknowingly created something when he thought he was saving everyone.

Four minutes is plenty of time for Marvel to completely change how audiences interpret this scene they’ve been watching since 2019.

Of course, this remains a fan theory, and Marvel could take the Doom and Tony Stark connection in a completely different direction. The variant explanation remains the simplest possibility, and sometimes the simplest answer really is the answer.

Still, Marvel is bringing one of its biggest movies back to theaters shortly before Avengers: Doomsday, adding previously unseen footage and pointing audiences toward a connection between the two films.

If those extra minutes reveal that Tony Stark’s final snap helped create the MCU’s next major threat, Endgame Encore could go from a fun theatrical re-release to mandatory viewing before Doomsday.