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.
Well, if Naruto had Deidara's bloodline, his explosive - related abilities would likely be enhanced. He might be able to create explosive clay like Deidara. His combat style could shift towards more long - range attacks with these explosive elements, adding a new dimension to his already diverse set of skills.
His water - based jutsu might improve. Since Kiri is known for its water ninjutsu, Naruto could learn new techniques or modify his existing ones. For example, he could combine his Rasengan with water chakra to create a more powerful and water - enhanced attack.
The coolest aspect would be his new elemental powers. Kakuzu had different hearts for different elements. Naruto could combine these with his own Rasengan. Imagine a Rasengan infused with multiple elements from Kakuzu's hearts. It would be an extremely powerful and unique attack.
In a Themiscyra fanfiction, Naruto's shadow clone jutsu could have an interesting transformation. Maybe the clones could take on some Amazonian characteristics, like their armor or weapons. His rasengan could also be modified. For instance, it could be charged with the magic energy of Themiscyra, making it not only a powerful physical attack but also having some sort of magical effect, like being able to dispel dark magic or heal minor wounds in addition to causing damage.
He might gain some of Whitebeard's physical strength. Whitebeard was incredibly strong, and Naruto could inherit a portion of that. So he could be even more powerful in hand - to - hand combat. Also, he might get some kind of seismic - sense ability, like how Whitebeard could sense things through the vibrations in the air or ground.
His combat abilities would change a great deal. He'd likely be more proficient in close - range combat due to learning the Hyuuga's Gentle Fist. This would give him an edge in battles where quick, precise strikes are needed.
In this fanfiction, Naruto's abilities would change significantly. Firstly, he'd be exposed to Kumogakure's unique jutsu. He might learn more advanced lightning - style techniques which are prevalent in the Cloud Village. His combat style would be more brute - force - oriented, as the Raikage values strength. Also, his ability to lead and make strategic decisions would be molded by the Raikage's military - minded approach. He might not rely as much on his Uzumaki heritage in the beginning, but as he grows, he could find a way to combine the Raikage's teachings with his own innate abilities.
He'd probably be better at stealth. Haku was a master of it. Naruto might also have an earlier start with water - based jutsu and could potentially develop some ice - like jutsu similar to Haku's.
His chakra abilities might be affected by the presence of Dust in RWBY's world. Maybe he could combine Dust with his jutsu. For example, using fire - type Dust to make his Fireball Jutsu even hotter. His physical abilities like speed and strength would still be an advantage, but he'd have to learn to use them in the context of fighting Grimm and other RWBY threats.