Many viewers have pointed out that Thanos was able to lift Stormbreaker without a problem, but this is because the ax isn't enchanted as Mjolnir is. Others believe Thanos lifted Mjolnir (although briefly) and have even argued that he would be worthy of doing so.
Storm breaker is meant to be the strongest weapon of Asgard and could even summon bifrost, says Eitri. But there is no enchantment or spell on it like it was on Mjolnir. So one doesn't have to be worthy to weild it, just the strength to lift it. Clearly Thanos is capable of lifting it.
Unlike Mjølnir, however, the weapon is not enchanted to prevent those deemed "unworthy" from holding it, making anybody with sufficient strength capable of using the weapon.
Meanwhile, MCU Phase 4 saw Stormbreaker being wielded by Thor, Gorr the God Butcher, Love, and anyone else who was strong enough to actually lift and swing it. This is because of the respective origins of both legendary Asgardian weapons.
As Thor described in Infinity War, Stormbreaker was a “Thanos-killing” weapon. Like Mjolnir, Stormbreaker is one of the most powerful weapons in the universe, and both Uru hammers nearly deal killing blows to Thanos in both Infinity War and Avengers: Endgame.
How Can Thanos LIFT Stormbreaker? Avengers Endgame Explained - Stormbreaker vs Mjolnir
Why can't Thanos stop Stormbreaker?
I think, quite simply, he underestimated both Stormbreaker and this more godly Thor. He had the power to simply snuff Thor from existence or fire a beam that nothing in the universe could stop. Or anything else he could imagine.
Stormbreaker has the additional power to summon the Bifröst, allowing Thor to teleport anywhere in the Nine Realms. Screen Rant has identified Stormbreaker as the more powerful of the two, based on this ability, as well as it being a much larger and edged weapon.
This is a very simple answer that a lot of people don't understand: You don't need to be worthy to lift Stormbreaker! Unlike Mjolnir, Stormbreaker was never enchanted by the forefathers to only be held by the “worthy”. It was simply a powerfully forged weapon with near-indestructible properties.
During a conflict between Beta Ray Bill and Thor, who had been turned into an Herald of Galactus, Bill prevented Mjolnir from returning to its bearer's hand. Seeing no options to reach an agreement, Thor called Stormbreaker and destroyed it by hitting it against Mjolnir.
Because it could kill thanos, is more powerful and thor panicked. Had he thought to call Mjolnir thanks would have gone to catch it and it would have knocked thanos on his bottom or something similar. But because thor was reliant on stormbreaker because it was more powerful he did it without thinking.
If Thor decides to use the power of lightning onboard the Asgardian refugee ship to fight the villain and his minions, he may accidentally damage the ship, or worse, even kill his own people. So, he chose to hold himself back, allowing some Asgardians to escape with Valkyrie (Tessa Thompson) and Korg (Taika Waititi).
Who would win in an MCU fight: Odin or Thanos? Without the Infinity Gauntlet, Thanos stands little chance against Prime Odin. Odin is stated to be able to shatter the Earth.
Gorr the God Butcher possesses enhanced strength, durability, and agility due to his alien physiology and absorption of divine energy. Stormbreaker, a powerful enchanted weapon forged by Eitri, allows beings of sufficient strength, like Gorr, to wield it.
Can Thor (with Mjolnir and Stormbreaker) kill Syder Cut's black suit Superman? Yes, indeed Thor would easily win against Synder Cut Superman, but it will NOT be an easy win, because Synder Cut Superman is also very powerful and has many feats. So Thor would win, but with really high difficulty.
Rune King Thor is perhaps the strongest version of Thor we have ever witnessed in the Marvel Comics. In the desperate need of power, Thor makes the ultimate sacrifice of his life in the Mighty Thor #80–85. He hangs himself from the tree of Yggdrasil to get his hands on Rune Magic and he literally died.
The entire axe was undamaged by the beam from all six Infinity Stones. So the handle was likely enchanted alongside the head of Stormbreaker to be nigh-indestructible as well. After all, like other weapons of Nidavellir, Stormbreaker is a magical weapon.
The movie doesn't explain Thor's motivations for giving up Stormbreaker, but it makes sense that Chris Hemsworth simply wanted Love to have a powerful weapon to aid her in battle. It's unlikely that he could give her Mjolnir, considering that so few people in the MCU have been deemed worthy of its power.
Although Stormbreaker and Mjolnir have very similar properties and powers, Stormbreaker is the most powerful weapon wielded by Thor so far. The obvious reasons are that Stormbreaker is the physically larger weapon out of the two, and not to mention that it is an axe, which could well be more dangerous than a hammer.
Why is Stormbreaker stronger than the Infinity Gauntlet?
Originally Answered: How is Thor's Axe, Stormbreaker, stronger than the Infinity Gauntlet? The simple answer is- Dwarven magics. That's pretty much the official reason given for why, anyway.
Actually everyone can lift Stormbreaker. Odin's enchantment was only for Mjolnir not for any other weapon which he would use in future. That is why Thanos was able to lift Stormbreaker and he was not worthy of Mjolnir.
Stormbreaker survived a full blast from the IG utilizing all of its stones. Actually, not only did it survive, it overpowered it. Unless you think Hela's grip and innate powers is more destructive than all those stones combined then the answer is no, she can't destroy Stormbreaker.
In the MCU, Stormbreaker was forged by Eitri at the behest of Thor, as a weapon to use against Thanos and his Infinity Gauntlet. In the comics, however, Stormbreaker was still made by Eitri, but pretty much everything else is different.
Incredibly, though, Stormbreaker proved capable of resisting the full might of all six Infinity Stones; in the final battle of Avengers: Infinity War, Thanos projected a beam attack against Thor, one that flared with the colors of all six Stones, but Stormbreaker didn't even seem to be slowed by the blast.
