Tony was in a grass field, sitting under the starlit sky and gazing at the infinite Multiverse. He was recounting the things he had done after coming to Norway.
He remembered that he tasked Jarvis to decode and simplify the Spells and Scriptures of the Mystic arts. As Jarvis was doing that, he himself started experimenting with the Time Stone. After brainstorming for very long, he could only understand the Time Stone very little. He also tried to contact the Supreme primordial entities such as Infinity, Eternity, Death, Oblivian, Eon, Galactus or any other of the 'Seven Friendless', but he couldn't contact even Infinity, whose two of the six stones he had, so he decided to store the time stone in himself with the Mind Stone for the time being and just go about his plans.
Tony first went to meet the All-Father, the Ruler of the Nine Realms, Odin Borson.
Odin informed Tony that his soul shouldn't exist in this Multiverse, due to which he is not bound by the threads of fate to anything or anyone and because of which, no divinity of this Multiverse can search for his soul or look at him with their All-Seeing eyes such as Heimdall. This information helped Tony realize why he couldn't contact the Entities of this multiverse. They can't even detect him unless they come to see him face to face as Tony was not their child and they can't perceive him.
Tony then offered Odin his health in exchange of the coordinates for the Dwarf planet and the Uru ore as he needed strong weapons like that to even qualify to talk with other cosmic beings. His primary motive was to go to Asgard, and meet Hela. The reason for this was because Hela was unjustly imprisoned for a very long time and he thought that he could use his powers to break her out and use her to get the tesseract and ultimately the Space Stone inside of it.
He was actually very confused as to why Thor destroyed the Asgard at the hands of Surtur just to kill his sister who was imprisoned for trying to increase the domain of Asgard. Like He'd destroy and kill the Asgardians instead of letting them live under someone who could increase their resources.
Tony ultimately concluded all this bullshit to the flawed morality of Odin and Thor. Odin however obviously declined Tony's offer as he believed that these events needed to be played and nothing can stop the Ragnarok. Like Seriously? Just because he thought that nothing can stop the Ragnarok because of the prophecy by Yggdrasil, he'd let the Asgardians die. This was another proof of Odin's flawed morality that Tony didn't understand.
Tony then returned to his lab and started to experiment with the Time Stone. Days turned to weeks, weeks turned months and months to years and Tony started to comprehend the Time Stone little by little. The reason Sorcerer Supreme could use the Time Stone so effectively was due to it being encased in a special incantation, which makes it the 'Eye' and helps control the Time Stone with the Mystic arts.
Tony was also learning the Mystic arts little by little but that was due to the Mind Stone changing Tony's Brain from the inside. Due to the frequent contact of the Mind Stone with his body, Tony's mind was changing slowly. He could think even faster, his Psionic powers were increasing little by little but the most important thing was that his affinity towards the Infinity stones were increasing, which resulted in his comprehension of the Time Stone.
After decades had passed, He was starting to get tired of being holed up in his lab so he dug an underground cave and made a hot-spring there so he could relax his mind a little. Tony's experiments were most of the times ending with failures but he still got the hang of the Time Stone. He could not use it on a living being as of yet but he could influence non-living objects with the Time Stone with a little help of the Mystic Arts.
As Tony grew older, He was starting to get extremely anxious as no one had contacted him in these 80 or so years. He was so focused on comprehending the Infinity Stones that he completely forsake the rest of the world.
He tried to check what was going on but found that time was flowing differently around him. He soon realized that he was in some kind of a Time Limbo which happened due to the careless experiments of the Time Stone with the Mystic arts. Tony tried everything to break out of this limbo and when nothing worked, he just decided to risk it and held the Stone with his bare hands.
The Stone then broke the 100 years Limbo and sent him back in time, the day he just arrived in Norway.
After he had realized everything, Tony also realized that due to the changes in his brain due to the influence of the Mind Stone for around one hundred years, Jarvis has evolved and gained Self-Awareness. Tony immediately took the necessary measures as he had already predicted this and killed Jarvis. He reprogrammed his AI and rebooted it, which pained him a lot as it was attached to his soul but Jarvis was back at functioning again properly.
Tony was informed by Jarvis that it had found the Quinjet taken by Hulk, which stranded him on the planet Sakaar and made him a gladiator there who fill fight Thor in near future.
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Tony was also informed that it had found Wendell Vaughn, The person who will later be chosen by the entity Eon as the Protector of the Universe and be known as Quasar. Tony also remembered that Infinity itself possessed Vaughn and made him it's avatar.
He quickly left to meet Vaughn and after he had 'talked' with him about Quantum bands which he as researching on, Tony exited the S.H.I.E.L.D's facility where he was working and disappeared from the crowd.
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After reminiscing all of this, Tony closed his eyes and released a rough breath from his mouth in the Starlit sky, he stayed there for the whole night, clearing his mind of everything and just relaxing in his still normal clothes.
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Dr. Strange was performing some Mystic arts as the two gods in front of him who were his guests were watching him like kids watching their favorite superhero. They were extremely charmed by the Mystic arts and Loki was even entertaining the Idea of becoming the Sorcerer Supreme himself.
After Strange completed the spell and opened his eyes, he said
"An extremely powerful aura which is quite similar to you people is residing in Norway."
"Norway? Where is that?" Asked Thor with a raised eyebrow.
Strange then patiently explained to them about where their father Odin was and they left to find him soon enough.
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Tony was eating with Pepper in his home which he romantically decorated, and after seeing her off, he discreetly went to meet Wanda and then Shuri. It wasn't that he cared about any of them, but he was trying to achieve something and it could only be achieved with frequent contacts with them… at least or now. He wasn't wasting time anyways as he had already replanned of what he was going to do now.
He also researched the Quantum bands but he was not successful.
"Maybe I need to be recognized by Eon as 'worthy' to use the powers of Quantum Bands...But the damn thing can't even detect me, which is actually good. But the timelines of all the comics and the movies are fucked up which is actually quite bad. Vaughn shouldn't have the Quantum Bands now."
[Successfully hacked the Quinjet taken by Hulk to Sakaar]
"Good, Send a low frequency sound wave from the Quinjet and try to detect if there is any electrical device which can be hacked."
[Sending low frequency sound waves in all direction]
[Found exploitable digital devices]
"Hack them"
[Hacking the Digital devices…..]