So, in actuality, he was imprisoned for somewhere around a year and a half. According to Thor the Dark World Prelude comic the trial happened right after Thor and Loki reached Asgard. So Loki was in solitary confinement for a year and half.
Here, holding on to all of the timelines, he became a kind of tree god, physically representing the Norse tree of life, Yggdrasil. It was a poignant and painful ending for Loki, who now seems to be sentenced to being alone for eternity as he watches over the timelines.
Loki was bound to a rock (by the entrails of one or more of his sons, according to some sources) as punishment, thus in many ways resembling the Greek figures Prometheus and Tantalus. Also like Prometheus, Loki is considered a god of fire.
In 2012, after the Chitauri Invasion, Loki is brought before Odin in shackles. Odin gives Loki a life-sentence in prison for his crimes against humanity, promising him that Thor will be made king one day after he's cleaned up the damage Loki has caused.
The Punishment of Loki - Norse Mythology Stories - See U in History
How is Loki still alive in Thor: The Dark World?
Apparently, Loki's powers in the MCU include the ability to project an exact doppelgänger of himself, which he describes as "an exact facsimile of one's own body in its present circumstance... a true holographic mirror of its molecular structure." This is likely how Loki faked his death in Thor: The Dark World — by ...
Believing that Loki was of no benefit to him during this skirmish due to his lack of physical strength, Kurse decided to leave Loki inside his cell, who went on to give Kurse directions as to find what he was looking for within Asgard.
He even adopted Loki, the abandoned son of his old foe Laufey, and raised and loved him as his own son, although he initially did this as a way to unite Asgard and Jotunheim.
In the Marvel Cinematic Universe (MCU), why did Odin love Loki more than Thor? In the end, Odin loved both his sons equally. And at the end (or so we thought), Loki finally acknowledged Odin as his father as well.
After a discussion on the matter, while parts of Loki clearly belonged to the head or the neck, neither side could agree exactly where one ended and the other began. Loki therefore kept his head indefinitely, afterwards his lips were stitched shut by Brokkr as punishment for using tricky wordplay.
Following this final stanza a prose section details that after Loki left the hall, he disguised himself as a salmon and hid in the waterfall of Franangrsfors, where the Æsir caught him.
This stemmed from his childhood and the belief that Odin didn't love him. While Odin's hiding of Loki's true parentage and Thor's demeaning behavior may have influenced Loki, ultimately he is to blame for his villainous actions due to his own issues with self-acceptance and misinterpretation of his upbringing.
Superhuman Longevity: Loki has the capacity to live for thousands of years. Loki was a baby at the end of the last great war between the Asgardians and the Jotuns over a thousand years ago and is now in the physical appearance of a human male in the prime of life.
By saving and organizing every existing timeline, Loki has become the God of Time — a higher being who keeps the past, present, and future of every universe from being erased by outside forces. However, Loki has also become the God of Stories, as he has placed everybody's personal journey above his own.
"Loki Is About 16 Years Old In The MCU In Thor: The Dark World, Odin reminds Loki that Asgardians are not immortal and have lifespans as humans do, to which Loki responds: "Give or take 5,000 years." From this, it can be calculated that Asgardians live to about 5,100, with Loki being around 1050 years old in the MCU."
Ages ago, Odin fought and defeated Laufey and the Frost Giants of Jotunheim in a great war. Abandoned and left for dead as a baby due to his diminutive size, Odin took Loki, son of Laufey, to Asgard to raise him as his son and a prince in order to one day unite the Frost Giants and the Asgards in peace.
Laufey was the king of the Frost Giants of Jotunheim, and the biological father of Loki. He was betrayed and killed by his own son while attempting to start a second war between Jotunheim and Asgard by murdering the Asgardian King Odin.
As a result, Heimdall was replaced with Skurge as Gatekeeper as Heimdall fled into the mountains. He continued to watch over Asgard from exile, and observed as Thor defeated Surtur and returned the Crown of Black Fire to Asgard, outing Loki as having disguised himself as Odin in the process.
Now Odin did tell Thor he was stronger then him (Odin) which some interpret as Odin meaning Thor is stronger than Odin cause Thor now has his fathers power plus his own. But we have to remember two things. Odin himself said Mjølnir only channeled Thor's power, Thor just needed to learn to use it naturally.
An in-universe reason, however, could be the link between Thor and Earth, as Odin banished his son to Earth in Thor, in hopes that he would overcome his ego and arrogance and learn a powerful lesson on humility and what being a hero is truly about.
This means that Odin must have used a formal spell on Loki, which did not require constant magical upkeep. The spell was permanent, making it so Loki only reverted to having blue skin when touching a Frost Giant or one of their artifacts.
Boastful Loki is a Loki from an alternate reality. He claims to have killed Captain America and Iron Man, and then obtained all six Infinity Stones. This created a nexus event which caused the Sacred Timeline to branch, so he was captured by the Time Variance Authority and his reality was destroyed.
Two years after Ragnarök, Thor looks for the reincarnated Asgardians in a small town in Oklahoma where Asgard has been reborn. Unexpectedly, he finds his brother, but this time Loki isn't male. The Trickster God has stolen the body intended for Lady Sif. And like that, Lady Loki was born.
