Sasuke's Sharingan could potentially be used to analyze the reiatsu patterns in the Bleach universe. This would allow him to predict the movements of his opponents, much like he does in the Naruto world. For example, if he was facing a Soul Reaper or a Hollow, he could see the flow of their reiatsu and anticipate their attacks.
The elemental powers could also be incorporated into new species or planets. A species from a planet rich in volcanic activity might have an innate ability with fire. They could use this power in their combat or daily life. For a water - based planet, its inhabitants might have water elemental powers. They could use it for healing, as water often represents life and renewal in many cultures. These powers would add new dimensions to the already diverse Star Wars universe.
His ability to use shadow clones could be really useful. In the Matrix, he could send out clones to explore different areas of the digital world simultaneously. This would give him an advantage in gathering information or setting up ambushes against enemies in the Matrix. Also, Naruto's Nine - Tails chakra mode might give him enhanced strength and speed within the Matrix, allowing him to move faster than the agents and break through their defenses more easily.
The powers of Ben 10 can fit in various ways. For example, Ben's alien form XLR8's speed could be compared to the speed of some of Naruto's fastest ninjas. In a fanfiction, this could lead to races or chases. Also, Upgrade's ability to merge with technology could be used in the Naruto world. Maybe he could merge with some of the village's defense mechanisms to enhance them.
If Naruto had Quincy powers, his combat style would be drastically different. Quincy powers in 'Bleach' are mainly about manipulating spiritual energy in a very precise way. Naruto, who is used to his chakra-based techniques like Rasengan, would now have the ability to fire spiritual arrows or create constructs out of spiritual energy. This could potentially make him even more powerful in battles against the likes of Sasuke or the Akatsuki. His Sage Mode could also interact in interesting ways with the Quincy powers, perhaps enhancing the range and precision of his spiritual attacks.
Naruto's chakra powers could be a great addition. His Rasengan could be like a new type of energy attack for the Avengers. Maybe he could combine it with Thor's lightning for an even more powerful blast.
His powers might be enhanced. In the DC Universe, there's a lot of energy and power sources. Maybe the Omnitrix could absorb some of that energy and give Ben new and stronger alien forms.
If Naruto had Arrancar powers, he might gain the ability to use Cero, which is a powerful energy blast. This could replace his Rasengan in some ways, or he could combine them for an even more devastating attack. His movement would also become more like an Arrancar's, perhaps with the ability to move at high speeds in a more fluid and menacing way. And his appearance might change, with some Arrancar - like features, which would shock his friends and foes alike.
One way is to make psychic powers a result of a genetic mutation within the wizarding community. Harry could be the first in a long time to inherit this mutation. His psychic powers could include telepathy, allowing him to communicate silently with other wizards. It could also involve precognition, where he gets glimpses of future events. And perhaps psychokinesis, the ability to move things with his mind. This would add a new dimension to the battles and challenges he faces in the fanfiction.
Perhaps when they combine, Spider - Man gets the ability to fly due to Captain Universe's power. He could also have a sort of cosmic - awareness, being able to sense threats from across the universe. This would make him an even more formidable hero, able to protect not just his city but also have a role in the greater cosmic balance.