He could have enhanced physical strength and speed. Since he's raised as a weapon, his trainers would focus on maximizing his physical capabilities. Maybe he can move so fast that he's almost a blur in battle. And his strength could be on a level where he can break through solid rock walls with ease. Also, his chakra control might be more precise, allowing him to perform complex jutsu with greater efficiency.
Well, in the 'Naruto is raised as a living weapon' fanfiction, Naruto might have some really extraordinary powers. One possibility is that he has a form of chakra manipulation that allows him to create weapons out of pure chakra, like swords or spears that are as sharp and durable as real ones. His body could also be enhanced to resist various types of attacks, whether it's physical blows or ninjutsu. He may have a special ability to sense the intentions of his enemies from a distance, almost like a sixth sense. Additionally, he might be able to transform his body into a more combat - efficient form, similar to the Sage Mode but with more of a weapon - like aspect. This could include things like having spikes protrude from his body for close - range combat or having wings made of chakra for increased mobility in the air.
He would likely have some dark - based abilities. Maleficent has powers related to dark magic, so Naruto might be able to manipulate shadows or darkness in some way. For instance, he could use shadows to move around stealthily or create illusions within the shadows.
Well, in the fanfiction, it's possible that one of the sisters has a power related to the wind, just like Naruto. But instead of using it for offensive attacks mainly, she uses it for more defensive and utility purposes, like creating wind barriers or using the wind to carry messages. Another sister could possess a fire - based power. She could be a master of fire jutsu, creating intense flames that can melt metals. The third sister might have a unique power of light, being able to blind enemies or use light to create illusions.
In this fanfiction, Naruto could possess the power of regeneration. Dragons are often depicted as having strong regenerative abilities. So, if Naruto gets injured in battle, he might be able to heal himself much faster than before. Additionally, he could have the ability to sense things from a great distance, like a dragon can detect prey or danger from afar. His senses of sight, smell, and hearing could be greatly enhanced, allowing him to be more aware of his surroundings and better anticipate attacks.
He could inherit Naruto's chakra - rich nature. So, he might have a large reserve of chakra like his father. Also, since Naruto has the Nine - Tails' chakra, Minato might have some sort of unique connection to it as well, perhaps being able to access a small portion of its power in a different way than Naruto does. And of course, he could inherit some of Naruto's signature jutsu like the Rasengan, but with his own twist.
One possibility is that the child has a unique form of sensory perception. Naruto has his own way of sensing things, and Koyuki might have some hidden senses related to her royal heritage. Combined, the child could have a super - sense that allows it to detect not only chakra but also other hidden energies or threats. Also, the child could have the ability to communicate with animals, a trait that could come from Naruto's connection to the toads and Koyuki's possible connection to the local fauna in her land.
He could have the ability to manipulate the concept of law itself. For instance, he could make it a 'law' that any attack aimed at him misses. This would be like a natural defense mechanism. Another ability could be to set laws on the use of chakra, like 'only I can use fire - style jutsu in this area' which would disrupt his opponents' combat strategies.
Naruto might gain the ability to tap into a primal energy within him due to his wrath powers. This energy could allow him to heal faster when injured in battle. Also, he could have the power to influence the emotions of his enemies. When they look into his eyes during his wrath - filled moments, they could be filled with fear or hesitation. Additionally, his physical attacks could carry a sort of 'wrath - curse' that weakens his opponents over time as they are continuously exposed to his wrath - powered strikes.
He could get a sword with special powers. It might be able to cut through any material, even chakra - based defenses. Or it could have the ability to absorb the chakra of those it strikes.
Another possible power is the ability to control all the elements with extreme proficiency, not just the ones he already has in the original series. He could combine them in ways never seen before, creating powerful and unique jutsus that could defeat any opponent.
She could have the power of the Nine - Tails like her father. Since Naruto has a strong connection with the Nine - Tails, it's possible that this power is passed down to his daughter. Maybe she can control the chakra of the Nine - Tails more easily and use it for powerful jutsu.