I don't own naruto or the X men lifes so unfair…..
Well I asked around a few good authors to see if they wanted to run with this idea and they were all too busy with current stories. So im going to try and see if I can do it partial justice this won't follow xmen continuity during his time there as that has more holes than swiss cheese so just deal with it.
Also if anyone wants to run with this plot idea as well feel free to EMULATE it … not plagiarize it
Preview of Naruto X – Messiah Complex
What if on the night of the forbidden scroll incident more happened… Naruto discovers the blood clone jutsu as well as the shadow clone thinking that he did so well on the first clone and this one was even stronger he tried it… not reading that it required 7 liters of blood … only that it required blood. When he activated the jutsu he passed out and the clone was made but started out disoriented. The clone saw the original Naruto passes out and thought it was the clone and that he botched the jutsu and thought itself the original.
The clone then hides the original Naruto inside the shack/shrine in the woods with the original copy of the forbidden scroll thinking it was a copy made by the jutsu.
The clone naruto goes through cannon events thinking itself the real naruto and has only one third of kyubis total chakra inside him.
The original naruto wakes up inside the shack watching Mizuki tell his duplicate about the fox. The Naruto inside the shack looks for a weapon summons in the scroll he saw earlier and opens the seal. He gets the uzumaki sword of sealing. He gets some of his blood on the blade and activates the swords special ability and opens a space time rift and falls through with the scroll and sword..
Naruto arrives in the X mens universe and is there for three years unlocking his sealed memories the truth about his past and the betrayal of the leaf village, while activating his dormant mutant abilities and discovering hes somehow distantly related to Jean Grey. He has encounters Magneto Sinister and Apocalypse. He creates ties to the brotherhood – Magneto comes to see Naruto as a kindered soul…. And become a mentor father figure to him. Victor Sabertooth Creed due to a psionic attack becomes mind linked to naruto for a short time and sees the same life he lived … abused scorned existence and Naruto sees Victors loss when Wolverine left Weapon X Victor felt that he abandond his pack that's where Victors true hate lies with Wolverine they develop a very rough brotherly relationship. Victor winds up with Kyubi when shes freeded. Kyubi treats naruto as a younger brother after her freedom as well.
Eventually the house of M crisis occurs and during this time Naruto uses his powers to alter the reality changing wave created by the scarlet witch to not remove all mutants powers but to remove them from this reality forcing them all to be transported to his world. They arrive in naruto's world only three months after he left and the majority of the mutants land in the middle of the ruins of old whirlpool that's been converted into a concentration camp for bloodline users from mist. The mist anti bloodliners and the mutants fight making the xmen and brotherhood join together and free the prisioners.
Naruto the xmen and Brotherhood and the hellfire clubs mutants join together and create a new Mutant village .. The village hidden in light… (Holograms) from there technological adept mutants. They see the new world there in a place to start over but realize that life in this world is viewed as cheap. Where the base economy of the world is killers for higher they decide to create a protectorate and to get other villages to join they will offer protection only to those that no longer support the shinobi system. Protection is ok but hiring for killing is not. They send a scouting team to wave and Naruto encounters his clone in the wave mission but doesn't reveal himself to it. The mutants send groups to the chunnin exams to show the villages there abilities and as they hope to start breaking the shinobi system.
During the exams the clone finds out its not the original and has a psychotic breakdown.
Narutos powers give him unprecedented time space abilities this in combination to having Kyubis regeneration and adaptation ability grafted into his dna before she was separated created Tesseract dna that means that the part of his dna chain shifts at first he was able to only access one power at a time similar to rogue but mutant engery signatures and chakra engery signatures are so similar and hes able to now read and copy them on sight allowing him to copy and blend mutant abilities seamlessly. He can only currently blend 9 abilities at any time and must concentrate and meditate in order to change any abilities focusing his awareness internally.
The power sets he uses mostly are Archangels wings in combination with magnetos powers and gambits this combination allows him to have better control of the wing blades as well as charge them for explosive results. Hes able to launch the blades with a magnetic discharge creating a rail gun effect.
He has access to all the powers of the brotherhood and xmen groups. But can only use nine at a time. He tries to keep hidden what nine he is using at any time except those with obvious characteristics.
He is able to access any power that he has come across but requires training to use it correctly if he never had it before. He can use his mental powers to borrow the knowledge of how to use new powers from the source but doesn't do so with friends.