Maybe he uses some kind of special jutsu. It could be a new form of his shadow clone jutsu where the clones are able to analyze and then copy the bloodline traits of the opponents they encounter.
In 'naruto copies bloodlines fanfiction', one interesting concept could be the exploration of new powers. Naruto, with his ability to copy bloodlines, might gain access to unique and unexpected abilities that change the power dynamics in the Naruto universe. For example, he could copy the Byakugan and use it in combination with his own skills, leading to new combat strategies.
In some fanfictions, one could be the Sharingan, which gives abilities like seeing chakra and predicting moves. Another might be the Byakugan, with its great vision powers. And the third could be something unique like the Ketsuryugan, which could have powers related to blood manipulation.
In the 'naruto has 3 bloodlines' fanfiction, these bloodlines can have a profound impact on the story. For instance, if one of the bloodlines allows Naruto to communicate with animals in a special way, it could lead to new alliances and ways of gathering information. A bloodline that enhances his ninjutsu in a unique way might make him the target of other villages or rogue ninjas who want to steal his power. And a bloodline that gives him the ability to heal others more effectively could change his role within the village from just a fighter to also a healer, which would completely shift the relationships he has with other characters and the overall direction of the story.
Well, in some Naruto fanfictions, a disease could be used to create a really unique plot. For instance, if a disease was created that specifically targeted the Kekkei Genkai holders. It would force the different clans to work together to find a cure. This would be a huge shift from the usual clan rivalries. Maybe the disease was created by a rogue ninja who wanted to wipe out all those with special bloodlines to gain power for himself.
In this fanfiction, the Sharingan from the Uchiha clan is an obvious choice. It has so many abilities like the ability to copy jutsu and predict movements. Naruto could become even more of a prodigy if he absorbs it. Also, the Aburame clan's ability to control bugs could be quite interesting. Naruto could use bugs for reconnaissance or even in combat in ways that are different from his normal fighting style. And the Inuzuka clan's connection with animals, if Naruto could absorb that bloodline, he might be able to form a stronger bond with his summons or other animals in the wild.
The six bloodlines in the 'naruto has 6 bloodlines fanfiction' could be really diverse. It might start with the Senju bloodline which is known for its great chakra reserves and strong life force. Then there could be a bloodline related to some sort of space - time manipulation, like a new version of the Kamui ability. There might also be a bloodline that gives the user the ability to communicate with animals in a more profound way, similar to but different from the Inuzuka clan's bond with dogs. Since it's a fanfiction, the author has a lot of creative freedom to come up with these bloodlines.
In the realm of Naruto all bloodlines fanfiction, there's also the aspect of bloodline combinations. Writers might create a character who has a combination of two or more bloodlines, resulting in completely new and unforeseen powers. This can lead to very creative and unpredictable story arcs.
One interesting aspect of Naruto all bloodlines fanfiction is the exploration of unique abilities. For example, some fanfictions might focus on a character with a rare bloodline having to hide their powers in a village that fears them. This can lead to really intense storylines full of mystery and self - discovery.
One great 'Naruto' fanfiction involving force bloodlines could be 'The Hidden Power of Bloodlines'. In this fic, it might explore how certain bloodlines in the Naruto universe could potentially have a connection to a mysterious 'force' - perhaps something like a spiritual or chakra - based force. It could introduce new characters with unique bloodline abilities that are related to this force and take the story in an exciting new direction.