Well, it could make Naruto extremely overpowered. He'd be able to counter almost any opponent's jutsu easily. For example, if an enemy uses a fire - based attack, he could use water element to extinguish it right away. This would change battles significantly as he wouldn't have to rely on outsmarting his foes as much in terms of elemental jutsu.
Well, it completely flips the power dynamics. With all the bloodlines, Naruto becomes an overpowered force. Enemies who were once a threat are now easily dealt with. His new abilities can make battles much shorter as he can combine different bloodline techniques in unexpected ways. For example, using Sharingan's precognition with Byakugan's long - range vision to dodge attacks and counterattack simultaneously.
Well, it makes Naruto extremely powerful. He becomes like a force that no one can easily oppose. His chakra level skyrockets, and he can use the unique abilities of each bijuu. This changes the power balance as he can now handle threats that were previously too difficult, like taking on powerful villains single - handedly.
Well, it changes a great deal. With all bloodlines, Naruto becomes an extremely powerful force. He can combine the unique abilities of different clans. For example, he could use the Sharingan's predictive abilities along with his own Uzumaki stamina and chakra reserves. This would make him almost unbeatable in combat against most foes. Enemies who were previously a threat would find it much harder to face him as he could counter their techniques with a wide variety of bloodline - based powers.
Well, it could change the plot in many ways. For one, he might be able to defeat stronger enemies more easily. With the five elements at his disposal, he could use combinations of attacks that are unexpected. For example, combining water and fire to create steam - based attacks that could blind or disorient foes.
His having all sub - elements would likely shift the power balance in the Naruto universe. He could potentially solve problems more easily. For instance, if there's a natural disaster caused by an imbalance of elements, he could use his all - encompassing element powers to restore balance. This would change the overall narrative as he becomes a more central figure in maintaining the world's stability.
His power becomes extremely overwhelming. With all nine bijuu, Naruto gains access to an insane amount of chakra. He can perform massive jutsu without much strain. For example, his Rasengan could potentially be magnified to a scale that could destroy large areas with ease. Also, his physical abilities like strength and speed would be enhanced to superhuman levels due to the boost from the bijuu's power.
Naruto having all the summoning contracts would mean he has access to a vast array of resources. He could use the unique abilities of different summons to gain an edge in battles. For instance, if he needed to cross a large body of water quickly, he could summon a water - based creature. And in combat, he could combine the attacks of different summons to create powerful and unexpected strategies, which would greatly alter the power dynamics in the story.
If the 'All for One' ability was introduced in Naruto fanfiction, it would completely disrupt the power dynamics. For example, a character with this ability could potentially steal the powers of the Kage - level shinobi. This would make that character extremely powerful overnight, and the balance of power between the villages would be severely affected. They could then use these stolen powers to either rule over others or cause chaos.
Well, it could completely reshape the battles. Instead of relying on just one or two main elements like wind in the original, he can now use a combination of all elements to outwit his opponents. For example, he could use water to douse an enemy's fire jutsu and then follow up with earth to trap them.
It would completely transform his power level. Consider that each bijuu has its own distinct set of skills and chakra reserves. Naruto would be like a living, breathing nuclear reactor of chakra. His ability to heal himself might be enhanced, as some bijuu are associated with life - force. He could also potentially communicate with all the bijuu spirits, getting their insights and battle strategies. This new - found power would not only make him stronger in direct combat but also give him an edge in terms of strategy and knowledge. He could become a sort of protector of the entire ninja world, with the combined might of all the bijuu at his disposal.