The Asgardians are intercepted by Thanos and his his children, and half of them are killed.
But how did Thanos acquire Power Stone before the events of Avengers: Infinity War? Thanos got the Power Stone off-screen by decimating Xandar and taking the Stone from Nova Corps, who were tasked with safekeeping it.
Avengers: Infinity War cut a 45-minute sequence of Thanos destroying Xandar and stealing the first Infinity Stone, the Power Stone. Avengers: Infinity War was groundbreaking due to it seeing the coming together of several heroes from different MCU franchises to fight the Mad Titan.
He was after all the six infinity stones – Space, Mind, Reality, Power, Time, and Soul stones. He found the space stone from Loki in Asgard at the film's beginning. While he got the remaining four from different battles, he already had Power Stone with him.
According to MCU, the Mind Stone was originally in the Chitauri Scepter. With the Chitauri being subservient, Thanos was their leader. To retrieve the Tesseract, he had made an agreement with Loki.
The Asgardians are intercepted by Thanos and his his children, and half of them are killed. Loki then gives Thanos the Tesseract in order to save Thor's life. Thanos crushes the Tesseract to acquire the Space Stone and uses it to teleport to Knowhere, Vormir, Titan, and Wakanda to collect the rest of the Stones.
Scarlet Power
As her powers likely come at least in part from the Mind Stone inside of Loki's scepter, Wanda's abilities include telekinesis, energy manipulation, and some form of neuroelectric interfacing that allows her to both read thoughts and also give her targets waking nightmares.
Thor loses his eye during the earlier parts of the final battle sequence with this goddess. She casually and effortless beats him around the throne room, and then the moment happens. Hela strikes Thor across the face with her sword, literally slicing the eye from out his head right then and there. Brutal.
Thanos is powerful in the MCU due to his Titan origins, his incredible intelligence, his cybernetic enhancements, and in large part, his equipment. Thanos also had centuries of combat experience before he set his sights on Infinity Stones.
The Power Stone (purple)
After Ronan was defeated by the Guardians of the Galaxy, the Power Stone was given to Xandar's Nova Corps. Thanos busted them up off-screen in Infinity War, and eventually used the stone's power to bring an entire planet down on Iron Man and company.
Thanos creator Jim Starlin has revealed Avengers: Infinity War had a 45-minute deleted scene that was never finished that would have shown Thanos' destructive trip to Xandar to retrieve the first of the Infinity Stones.
Just as Tony had the suitcase containing the Tesseract in his hand, 2012's Hulk knocked him down, causing absolute chaos. The suitcase went flying and revealed the Tesseract. Loki, momentarily left unmonitored, was able to grab the Tesseract and use its power to teleport away.
Thanos vs MCU Hulk
The Mad Titan was easily able to dispatch the Hulk without even using the only Infinity Stone he had available at the time: The Power Stone. The polished fighting style of Thanos proved too much for Hulk and his overall brutality and savagery.
So, why didn't we get to see it in the movie? Well, the answer was revealed by Infinity War directors Joe and Anthony Russo while they were holding a Q&A with some very lucky high school students in Iowa. As it turns out, there were just too many Stones to juggle. “Because we thought it'd be one too many.
Superhuman Durability:
Ronan withstands Power Stone's energy While not indestructible, Ronan had incredible durability that was well beyond that of a human. He was unfazed by Drax's best punches and was able to withstand the intense power of an Infinity Stone.
The Soul Stone Is Easily the Strongest Infinity Stone
While other stones become more powerful depending on who is using them, the Soul Stone is playing another game entirely, as Soul World is already a whole world in itself.
Kang is stronger than Thanos, with the Conquerer being much more challenging to defeat than the Infinity Gauntlet-wielding villain.
Unlike Thor, Thanos doesn't have any special fighting techniques other than illusions and intimidation. Thanos has god-like powers, which means he is definitely more powerful than any person on Earth and a good part of the galaxy.
WEAKER: IRON MAN
Tony could take on most opponents were he given enough time to prepare, but when comparing Tony and Thanos directly, Tony is the weaker of the two. Even without the Infinity Gauntlet, Thanos is far more powerful than any of the suits of armor Tony Stark has invented.
Infinity Stone > Mjölnir
The strongest, most logical theory why Vision can lift it with relative easy is due to the fact he is created with an Infinity Stone – the one found within the gem of Loki's scepter.
Hela is the child of Loki, God of Mischief, and the giantess Angrboda. Hela's face is withered and decayed because she was mystically born half dead, but wears a cloak that conceals this imperfection, and while wearing it, she appears to be a beautiful woman.
Comic. Thor's Prosthetic Eye is a cybernetic prosthetic eye given to Thor by Rocket Raccoon as a replacement for Thor's right eye, which had been gouged out by his sister Hela.
The orange magic in Doctor Strange was a result of borrowing energy from other, non-dark dimensions. And Wanda's magic is red because, well, she's the Scarlet Witch!
Jean was the first friend Scarlet Witch made when she joined the X-Men. She didn't care about Wanda's past as a stripper. When Wanda joined the Exiles, Jean was sad but she got over it eventually. She attended her funeral when her body was sent back to her home reality.
While Wanda's loving manifestation of the character in Westview did perish when the Hex was taken down, he didn't leave before restoring the White Vision's memories, meaning that the original version of the character remembers everything about his former life before Thanos killed him. Where he went remains to be seen.