Bringing together all the plots in Avengers: Infinity Wars and Endgame, Thanos became the main villain of both films. But since its departure, the MCU’s Phase 4 has been rather disjointed and received mixed reception from fans and critics alike.

Related: MCU Theory: Doctor Doom Kills Kang in Avengers: Kang Dynasty, Kicks off Multiverse Wiping Secret Wars Saga
But Marvel seems to have finally introduced its next main villain as Kang the Conqueror, who was unleashed in Loki’s latest episode after a variant of the character killed off the One Who Remains. But fans have speculated that Kang might not be the main villain and, according to the comics, it will be the Beyonder.
How Beyonder will replace Kang
This theory is based on a popular Marvel comics scenario from the 80s, where the cosmic entity Beyonder destroys all galaxies and realities except one star, and takes a few Marvel comics characters and places them on a planet called Battleworld. This comic was called Secret Wars.

Fans have suggested that the Avengers, Fantastic Four, and other characters team up to defeat Kang using Beyonder’s powers. They bring Beyonder into the picture who will then merge all the major stories to introduce the planet Battleworld and say the famous phrase:
“I come from beyond! Slay your enemies and everything you desire will be yours! Nothing you dream of is impossible for me to accomplish!
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Doctor Doom is also a candidate to replace Kang, as he does in the comics. Doctor Doom steals Beyonder’s powers just as he is trapped in Battleworld in the Secret Wars script. So we might still find Doom joining the Avengers in some capacity.
Who is the Heavenly Beyonder?
Beyonder is a god-like being, who faces an existential crisis over his true meaning in the world, after seeing the heroes on earth. He believes himself to be complete because he desires nothing, but after feeling like he is still incomplete, his actions eventually lead to the plot of Secret Wars in comics.

Unlike the MCU’s Asgardians and Olympians, the Beyonder is a literal god because he can reshape reality on a whim. Considered the dwarf of Thanos in all forms of strength, the celestial may be the real step up to titan.
Read also : Marvel Villains Other Than Kang Fans Want To See In Avengers: Secret Wars
Considering the MCU gave the heroes a taste of defeat last time out in Infinity Wars before allowing them to gain End of Game, the same thing could happen again. The Beyonder could allow the world to be destroyed, only to rebuild it as Battleworld and allow the Avengers to wish for the status quo.