How Thor's Oath Brings Back Mjolnir. While it seemed like Mjolnir was done for good, its oath to Thor is what brings back the mighty hammer.
The hammer was used extensively by Thor as his primary weapon until it was destroyed by Hela in 2017. The broken pieces were eventually made into a tourist attraction in New Asgard.
The most likely explanation for Mjolnir's return in Thor: Love and Thunder is that it's been repaired, as the hammer Mighty Thor wields in footage is webbed with bright blue cracks. Given Thor's surprised reaction to seeing Mjolnir (and Jane), this repair probably didn't happen at his request.
In Thor, Thor Odinson (Chris Hemsworth), temporarily lost his ability to lift it at a low point in his life. However, when he was willing to sacrifice himself to stop Loki (Tom Hiddleston), he regained his worthiness.
The chemotherapy is attacking the cancerous cells but Mjolnir doesn't identify the cancer as an illness just as another part of her it needs to protect. Plus chemotherapy really does weaken Jane and make her sick so it's easy to see as an illness on it's own.
Other Marvel characters have lifted Mjolnir not through worthiness but through technicalities such as absorbing Thor's powers, including the Air-Walker, Awesome Android, Magneto, Rogue, Wonder Man, and Doctor Doom.
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.
Like Stormbreaker, Mjolnir also allows Thor to wield thunder and lightning; however, it's not capable of summoning the Bifrost. The magic hammer did develop a power Stormbreaker couldn't, though, and it's able to detach its broken pieces to attack multiple enemies at once, before coming together again.
Stormbreaker is jealous about Mjölnir's return because the ax is basically a moody teenager. In Thor: Love & Thunder, Chris Hemsworth's Thor comes face to face with somebody he once loved.
Every MCU fan remembers with excitement the moment in Avengers: Endgame when Captain America (Chris Evans) first lifted Mjolnir. This didn't come as a surprise to Marvel comic fans, since Cap has proved on multiple occasions to be worthy of the power of Thor.
Yes, even Spider-Man has been worthy of holding the hammer of Thor.
Hela Understood Mjolnir's Power
That opens the possibility that Hela retained some hold over her former weapon, enabling her to shatter it. We don't know if she bonded with Mjolnir through some sort of Asgardian mysticism, but she possessed the hammer for much longer than Thor did.
Thanos was able to lift Stormbreaker because the axe doesn't have worthiness enchantment as Mjlolnir does. Mjolnir is specific when it comes to the wielder's might since the only prerequisite to wielding is that the wielder is “worthy” of its might.
The hammer Stormbreaker is very similar to Mjolnir, made of mystic Uru metal and is nearly indestructible. Worthiness: Just like the original Mjolnir, no one can lift Stormbreaker who is not worthy.
It is safe to say that Stormbreaker cannot be destroyed by anything audiences have seen in the MCU so far. A power that Stormbreaker lacks is the "worthiness" enchantment of Odin. Anyone physically strong enough to lift and use Stormbreaker can use it.
Mjolnir was forged for Thor Odinson's grandfather by the dwarves, who used the core of a star and Uru metal to form the iconic hammer and imbue it with its immense strength and magic. It is nearly invulnerable and is capable of great destruction.
Can anyone lift Stormbreaker? Yes — and the reasons why a crucial point in the comparison between Stormbreaker vs Mjolnir with respect to Thor's character arc in the MCU. The God of Thunder went through a massive transformation in Taika Waititi's Thor: Ragnarok, which continued into Thor: Love and Thunder.
Can anyone lift Stormbreaker? Yes - but it's meant to be the strongest Asgardian weapon, and not just anyone can fully utilize its abilities.
Based on the analysis of powers, speed, strength, durability, and combat, we can safely say that Odin is stronger than Thanos and outmatches him in almost every aspect. Thanos might be among the most feared villains in the Marvel Universe, but he comes nowhere near when compared to All-Father Odin.
Captain America
But, they don't have to. Cap is one of the few mortals able to not only lift Mjolnir but wield its full power, making him someone who can beat Thor. Assuming the reason for their battle is because Thor is possessed or tricked, Cap would be able to use Mjolnir against him.
So is Spider-Man powerful enough to wield storm breaker I'd say probably. Well technically, Spider-Man should be able to lift it, because he possesses almost all the qualities of a worthy person. But what makes him different is that he's not self-confident. Also, he doesn't kill others, even if the situation depends.
Well, clever boy he is, the Red Hulk found a loophole, managing to use the hammer's forward momentum to carry him and Thor into space, where the zero gravity negated the otherwise absolute rule to lift the hammer of "being worthy."
Avengers: Marvel's FIRST Black Panther Was ALSO Able to Wield Thor's Mjolnir.
For a time, Masterson became Thor's new civilian identity, and the first human to wield Mjolnir on a regular basis. He quickly became known as "The Everyman Avenger."
But when it comes to the weapon's replacement, Stormbreaker – which Thor forges in Avengers: Infinity War – Groot is able to lift it too.