Disclaimer:" I do not know Mass Effect (Mass Effect is owned by EA studios and Bioware) or Elder Scrolls 5 Skyrim (the Elder scrolls series is owned by Bethesda). Or DBZ (DBZ is owned by Funamation, Towi animation, Fuji T.V, and Akira Toryama), Marvel Comics is owned by Stan Lee, Star wars is currently owned by Walt Disney, Halo is owned by 343 industries and Microsoft.

Chapter 1: Prologue

Skyrim: The fourth age, in the age where dragons once again fly in the land of mortals, when the world eater Alduin was supposed to end the world itself he was defeated by a mortal ( at least at some point before Alduin's defeat he was mortal) with the soul of a dragon, he was Dovahkiin, the last dragon born.

The name of this fearless warrior with the soul of a dragon is Malen Katarn. Malen is a Argonian in his mid-30's and is perhaps one of the strongest beings in all of Nirn even before his experiments that made him immortal, his eyes shined a brilliant white light with slits of black for pupils, his scaly skin was a mixed color of dark red around the arms, head, legs, back, and tale, while the front of his torso had a light shade of orange. On his head he had many white spikes that was the human equivalent of hair, though much of the head that didn't have a spike coming out of it was bald.

Before Malen's confrontation with Alduin in Soverngarde he was experimenting with restoration potions and the alchemy armor he had recently made that was enchanted to the max that anyone could possible do unaided.

He was creating restoration potions by the thousands and after each one he made and before he started on the next potion, he unequipped and reequipped his alchemy armor and noticed that the intensity of the enchantment to his armor increased dramatically each time he drank the restoration potion he made.

He repeated this process until he got tired of doing it, he had drank at least 3 million restoration potions at this point and he really had to pee, but he resolved to make at least 1 million fortify enchanting before he would go outside his house in solitude, find the nearest tree and relieve himself on it. After he was done "draining the lizard" he went back to his house and thought of all the possibilities that were in front of him, not only did Malen know every enchantment in Skyrim, he remembers what Sheogorath taught him while they were in the mind of the late Pelagius.

Flashback:

Malen: "what enchantments and special properties to enchantments can you teach me if I may ask,
I wish to become even stronger so that I may slay my enemies and protect my kin?"

Sheogorath:" Wanting a guarantee that you will succeed in your endeavors hmmm?
I don't believe you are speaking the whole truth since what enchantments I can teach you will make whatever you have become overkill,
though I like that prospect,
becoming so strong that your enemies become like flowers to the stormy onslaught of your attacks and all your enemy can do is blow you kisses,
this can lead to an over confidence that can lead to madness, which I like, or even if it does not affect you that way,
it will at least will incite a fear in your enemies that will lead them to madness and/or shattering their perceptions of the own worlds.
Well know it looks like I just did your persuading and argument for you and won!
Though wining an argument against your self can either be signs of one's ego taking control of the responses one makes when an argument between the super ego and id happens, or it can be a sigh of MADNESS! But that's why they call me the Mad God.
Very well mortal,
I shall teach you the enchants for damage reflection, spell reflection, water walking, detect life enchantment that you can activate whenever you need it, but not all the time,
I mean Seriously whenever I tried to look at a young laces face whenever I had a detect live enchantment on I could not see her beautiful features that were being obscured by that pink mist;
speaking of which, I also will teach you how to make your life detection be able to distinguish between friend and foe,
that pink mist never told me whether or not I should gut the first person I see, don't give a flying fuck about them, or to kiss them to help them feel better about being so incompetent of a fighter that they needed someone else to bring them along to their job and do it for them.
Then of course there is levitation, how to put as many enchantments on an item as you want, the ability to duplicate items, make enchantments permanent to yourself even without the item on, and a enchantment that makes you immune to ranged attacks that are not based on magic!,
it pained me back a long time ago when I could still feel the sting of arrows whenever a stupid archer thought I would be a good idea to shoot me,
so when I got back to my office after having to change myself into my own form with someone else's past to remember I decided to create a enchantment that made all ranged attacks that were not based on magic as worthless as telling me to be more sane or to like sanity more, because that would be just…CRAZY!"
(After learning all the enchantments Sheogorath taught Malen using his obscure metaphors to explain certain concepts of each enchantment that Malen eventually got).

"there you go little mortal, now try not to tell anyone about what I taught you in details that would allow them to replicate the results,
it eventually dims the personal value of the enchantments you know and you feel less awesome for it, that and they usually want to stab you in the back so they can take all your hard earned credit, well so long fair mortal. Perhaps sometime when you have off you can visit me in the shivering isles for some cheese. Tata!"

End of flashback:

Malen, having become a master at every skill there is to have along with maxing out all the perks in every skill tree and having all the spells there was to have for all the different schools of magic and all the shouts there was to learn in the language of dragons,
as well as learning how to speak the ancient language of dragons so that he would be fully prepared for all the future battles he will have,
started to craft every piece of armor and type there was in Nirn along with weapons of each type,
though for the dragon bone weapons he crafted several dragon bone one-handed weapons since he liked the feel of a one-handed blade the best.

After Malen was done enchanting all the weapons he wanted,
He created a one-handed blade for each type of weapon enchantment there was, which consisted of fire, frost, shock,
soultrap, health drain, enemies flee, damage magic, damage stamina, damage health, poison target,
and a sword that was enchanted with all of these, he named this sword " Malen's Wrath".

After making all the enchantments he could to the armor he wanted to be enchanted and making the enchantments permanent to his body,
the enchantments that he made permanent to his body consist of SOOOO MUCH INSAINLY FAST health and health regen that he actually became immortal
and indestructible, just like the daedra and the divines, infinite reserves of magic and stamina
( he will not run out, but he is not omnipotent, but he will not get tried and he never has to sleep anymore),
he is immune to magic, fire, frost, shock, physical attacks, and also mental manipulation
( do to his strong will and the strength of all parts of his body, including his brain),
he has photographic and eidetic memory due to his fast regeneration rate preventing the natural decay of brain cells that would have eventually led to memory loss. he can also reflect the damage of magical and physical attacks whenever he wishes,
he can walk on water, his shouts no longer have a cool down time,
he can steal the cloths off a paranoid, alert person without them knowing,
he can pick any lock with ease, he can kill a person in front of a guard without the guard know that he did it,
all of his spells will succeed without fail and kill/incapacitate anyone within its range,
he can float off the ground and pretty much fly
( not at fast speeds, pretty much at the speed of how fast he can run, which is average for a normal, health, fit person),
he can make a humble and dole iron dagger into a weapon worthy of a god in both its physical properties and with godly enchantments,
he can turn armor made of fur into armor as hard as the hardest form of adamantium which even the hulk cannot break,
he can bring beings the size of entire worlds to their knees with a single punch,
he can turn a simple staff of fire, which has a limited charge, into an eternity of fire, a wooden staff in his hands would become more powerful than any melee weapon made by mortal and immortal alike,
and he can control the amount of power he uses and if he ever needs more power he can just use the process he used to this powerful again and make himself even more powerful.

After months of selling iron daggers he improved for ass loads of gold, ASS LOADS OF GOLD! He decided that it was time to beat Alduin's ass into his face. After he reach Sculdafin, destroying all the undead with as little effort as it takes to close one's eyes, reaching Soverngard and speaking to the 3 dragon born of old, he made good on his decision and punched Alduin in the face with enough force to send him flying and destroy the small mountain that was in front of the hall and skeleton bridge where Tsun was.

Time skip: after Malen Katarn becomes the arch-mage of Winterhold,
listener of the Dark Brotherhood, grand master of the Thieves Guild,
high ranking officer in the imperial legion after ending the war of brothers in Skyrim by defeating and killing Olfric Stormcloak,
defeating the oldest and most powerful vampire in Skyrim Harkon,
completing all the ritual quests for the daedric princes and obtaining a daedric artifact from each one,
becoming harbinger of the Companions,
arriving to a new land called Solstiem that is near Morrowind after being attacked by cultists of the first dragon born Miraak,
reading all the black books, learning the shout to thrall others ( including a dragon),
reaching the highest point of Hermaeus Mora's realm of oblivion, and defeating Miraak.

Hermaeus:" So my champion, what will you do now?"

Malen:" If I stay as your champion then I could end in a similar fate as Miraak,
so I shall fight you for my freedom and survival!" said in a loud and defiant tone with confidence that he will win.

Hermaeus:" very well my champion." He said in an unamused and dole voice expecting an easy victory over Malen.

However as Hermaeus sent a tentacle to impale Malen, before it impacted him, Malen dodged to the right with ease and slashed the tentacle with "Malen's Wrath" which completely destroyed the offending appendage and sent unimaginable amounts of pain as Hermaeus Mora felt the very life leave him and flow into Malen's body.

out of a panic with inaudible amounts of anguish, he tore open an inter-dimensional portal in order to send Malen as far away from him as possible since he quickly learned that Malen was immortal and could not be killed or even harmed by the likes of him.
Malen impaled his sword into the ground in hopes to resist the pull of the portal, but even though Malen did not give any ground, the actual ground his sword was impaled in gave way and a chunk of the floor along with Malen was pulled into the portal and it closed behind him.