Warning! Spoilers for Heroes Reborn #2 by Marvel Comics below.

Marvel's Superman, Hyperion, has proven to be a near-indestructible force in a world without the Avengers, however, his own kryptonite was just revealed: Captain America. In an encounter with the recently unfrozen hero, whose identity is hidden after being thawed from ice, Steve Rogers just showed he's actually Hyperion's biggest weakness - and all it took was a handshake to find it out.

In the Heroes Reborn universe, the Squadron Supreme - Marvel's pastiches of the DC's Justice League - have mysteriously taken the place of the Avengers as Earth's strongest heroes. In the alternate reality, the Avengers never formed as Captain America was never unfrozen from ice, Thor became an alcoholic and recluse, and the Hulk was thrown into the Negative Zone (and later killed) after first going green. Blade is the only hero who remembers the previous timeline and is trying to figure out how to return the Marvel Universe to its previous state. His mission leads him to thaw Captain America from ice, a move which immediately shows things aren't as they appear when the duo come across Hyperion.

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In Heroes Reborn #2 by Jason Aaron, Ed McGuinness, Mark Morales, Matthew Wilson, and VC's Cory Petit, Hyperion confronts a man outside of a school where he teaches history. But, when Hyperion tries to scan him using his atomic vision, it keeps shorting out. Hyperion asks if he knows him, with the man telling him he's just a homeless old vet the world's forgotten. When he shakes his hand, Hyperion notes it actually hurts and that he feels weak.

Captain America's Marvel Superman

Before Hyperion can interrogate the man further, Blade swoops in and takes him away. Blade asks him whether anything in the world seems right to him, and the man takes off his hood to reveal he's Captain America. Steve Rogers tells the vampire the universe is all wrong and that he believes him about reality being broken.

Heroes Reborn #2 strongly suggests the alternate reality is of Hyperion's making and that Captain America is actually Marvel's Superman's kryptonite. In rewriting reality, Blade - for unknown reasons - didn't have his memory wiped like his fellow heroes. Freeing Captain America from being frozen in ice and having him confront Hyperion showed something is seriously off. Steve Rogers' existence in the universe seems to be something Hyperion didn't plan for, making the longtime Squadron Supreme member extremely vulnerable against the unfrozen hero.

If Blade needs to take down Hyperion, the hero who's already killed Galactus, the Hulk, and Ultron, Captain America seems to be the key in doing so and restoring the Marvel Universe to its past self. He's Hyperion's kryptonite. Heroes Reborn #2 is in comic book stores now.

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