One impossible ability could be the power to time - travel freely within the Naruto universe. This would disrupt the whole timeline and sequence of events in the original story. Another might be the ability to instantly resurrect any fallen character without any cost or consequence, which goes against the finality of death in the Naruto world. And perhaps the power to control all the natural elements simultaneously with no training, while in the original Naruto, mastering multiple elements is a great and difficult feat.
Impossible abilities can greatly disrupt the plot. For instance, if a character has the ability to teleport anywhere instantly, it can eliminate the need for travel and many of the encounters that were originally part of the story. It can also make battles less interesting as they can easily avoid attacks or reach opponents without any real effort. This changes the whole dynamic of the story.
Well, for example, Sasuke's sharingan can be used in a Mission Impossible - like scenario. He could use it to quickly analyze the security systems of a heavily guarded place that Naruto needs to infiltrate. Just like how in Mission Impossible they analyze the layout and security details before a mission.
Yes, in some fanfictions, Naruto might be given unique elf abilities like enhanced archery skills, the ability to communicate with nature in an elf - like way, or even having a natural affinity for magic which is often associated with elves.
Yes, it is possible. You could create a scenario where Naruto characters are involved in a Mission Impossible - like mission. For example, Naruto could be tasked with infiltrating a highly guarded enemy base, much like Ethan Hunt in Mission Impossible. His ninja skills such as stealth, transformation jutsu, and high - speed movement would be very useful in such a mission.
It might have the ability to see through illusions that normal eyes can't. Since it's a dojutsu, even if it's broken, it could still have some enhanced visual powers. For example, it could detect the tiniest movements of an enemy, giving Naruto an edge in combat.
In some fanfictions, Naruto might have the power to control time. For example, he could freeze time during battles to gain an advantage. Another impossible power could be the ability to instantly teleport to any location in the ninja world without using any known jutsu. He might also have the power to communicate with all living beings telepathically, which is not part of his original abilities in the official story.
Well, if Naruto had Kakuzu's abilities, he'd be a much more formidable fighter. Kakuzu could use multiple hearts to gain different elemental powers. Naruto could use this to his advantage in battles. For example, in fights against strong opponents like Pain, he could use the extra elemental powers to counter Pain's various abilities more effectively. It would also change his relationships. His friends might be a bit wary of him having such strange and powerful new abilities.
The Naruto storyline would be altered drastically. Firstly, Naruto's training would change. Instead of focusing on chakra control for Rasengan and Sage Mode, he'd be learning to mold explosive clay. His relationships might also change. His friends might be a bit more cautious around him since his new abilities are more dangerous. In battles, Naruto could target enemy bases or large groups of opponents with his new - found Deidara - like powers. He could even use the element of surprise more effectively, like when Deidara attacked Gaara. This would make Naruto a more versatile fighter and could potentially change the balance of power in the Naruto universe.
He could gain the ability to create large - scale wooden structures, like Hashirama did. For instance, he could build huge wooden golems to fight for him in battles.