He might have the super power of precognition. Naruto could see a few seconds into the future, which would help him dodge attacks more effectively and plan his counter - attacks better. This power could also add a lot of drama and tension to the story as he has to make quick decisions based on his visions.
Another cool super power would be the ability to create portals. Naruto could open portals to different locations in the ninja world or even to other dimensions. This would give him a huge advantage in battles and also in terms of exploration and strategy.
He could have the power of energy absorption. So, when an enemy attacks him with a jutsu, he can absorb the energy and use it to strengthen his own attacks. It would be like a reverse - engineering of the attacks against him.
Maybe it's some kind of ancient bloodline that was dormant in his family for generations. It suddenly became active in him.
One cool power could be the ability to control water in ways Percy can't in the original. Like creating ice sculptures out of thin air that can also be used as weapons. Another could be the power to communicate with sea creatures on a deeper level, understanding their thoughts and using them in battles. Maybe even the power to transform into water for short periods to avoid attacks.
One possible power could be instant teleportation within a certain range. Some sage - like abilities in Naruto involve quick movement between spaces. Naruto, as a born sage, could use this to surprise his enemies in battle. He could suddenly appear behind an opponent or quickly move to a strategic location, giving him an edge in combat.
A vampire in a Naruto fanfic might possess the power of hypnotism. This could be used to manipulate other characters, much like the Sharingan in some ways. They could also have the ability to transform into a bat - like form for quick movement or stealth. Additionally, they could have a regenerative ability that is much faster than normal Naruto characters, which is related to their vampiric nature.
Alucard might have the power of shapeshifting, which could be used to deceive his enemies in the Naruto universe. He could also have the ability to control shadows, a power that would be quite unique in the world of ninja. This would allow him to move stealthily and ambush his foes. Additionally, his immortality would be a huge advantage, as he could keep coming back in battles no matter how severe the damage.
One possible power for Naruto as a descendant of a god in fanfiction is the ability to communicate with all living things. This would give him an edge in gathering information and in forming alliances. He could also have a special form of chakra that is far more potent than regular chakra, enabling him to perform jutsus that are otherwise impossible.
The baby might inherit Naruto's ability to use the Nine - Tails' chakra. Since Naruto has a strong connection with the Nine - Tails, it's possible for the baby to have some form of access to that power. This could manifest as enhanced strength and speed, similar to when Naruto taps into the Nine - Tails' chakra.
There are often super powers related to magical creatures in Harry Potter super powers fanfic. For instance, a character might have the ability to transform into a Phoenix at will, which would give them the power of rebirth and the ability to fly extremely fast. Another super power could be the gift of seeing the future with absolute clarity, not just in glimpses like Trelawney's prophecies but seeing entire timelines. And there could be a super power where a wizard can communicate with all magical plants and use them as allies, for example, making the Whomping Willow stop attacking or getting the Mandrakes to help in a fight.
A unique plot idea could be that Naruto's friends start to gain similar Saiyan - like powers. For example, Sasuke could develop a form that is a combination of his Sharingan and Saiyan power, which creates an interesting dynamic as they train together to master these new powers. Or perhaps, Naruto's Super Saiyan 3 form is the key to unlocking a long - forgotten prophecy in the ninja world that involves saving the entire universe from a cataclysmic event. In this way, the story could expand beyond the normal boundaries of the Naruto series.
He could potentially have the ability to control the moisture in the air, creating sudden fogs to disorient opponents. And his water body might be able to split into multiple smaller water clones that are more fluid and harder to destroy compared to normal clones. Since water can take any shape, he could morph his body parts into weapons like water blades.