The Sharingan in Naruto is a powerful ability that allows the user to copy jutsu, predict movements, and in some cases, use powerful genjutsu. In contrast, the pureblood vampires in Vampire Knight have the power to control other vampires. If we were to compare these in a fanfiction sense, it could lead to some interesting scenarios. For instance, a fight between a Sharingan - using character and a powerful pureblood vampire would be intense. The Sharingan user would have to rely on their combat skills and jutsu, while the vampire would use their natural abilities and control over others.
If we consider Naruto's shadow clone jutsu, as a vampire, he could create clones with vampiric powers too. Moka, on the other hand, has her unique vampire powers. They could interact in a way that Naruto's clones could be used to distract enemies while Moka sneaks up and uses her powers to incapacitate them. Also, Naruto's chakra control might be affected by his vampiric state and could be combined with Moka's energy in some new and interesting ways.
Perhaps she has the power of mind control. In the fanfiction, she might be able to influence the thoughts and actions of others, which could be really useful in various situations. For example, she could make an enemy vampire stop attacking her friends by simply using her mind control power.
Kagome has her spiritual powers like purifying arrows. In the Vampire Knight world, vampires have their own abilities such as enhanced strength and speed. They could combine powers by Kagome using her purifying arrows to weaken enemies that are resistant to the vampires' physical attacks. For example, if there's a powerful dark creature, the vampires could hold it in place while Kagome fires her arrows to purify it.
Superboy's powers of flight and super hearing could give him an edge in a confrontation with a vampire. He could use his flight to quickly close the distance or escape from a vampire's attack. His super hearing would allow him to detect the vampire's movements even when it's trying to be stealthy. On the other hand, a vampire's ability to transform into a bat or a mist could be a challenge for Superboy. If a vampire turned into a mist, Superboy's physical attacks would be useless. But his heat vision might be able to disperse the mist. And when it comes to a vampire's hypnotic gaze, Superboy's strong will, which is a part of his overall powers, would likely help him resist it.
Well, Loki's magic is based on Asgardian sorcery, which is very different from the vampire's powers that are more biological in nature. However, they could still interact. The vampire's immortality might be of great interest to Loki, and he could study it using his magic. On the other hand, the vampire could use its power of rapid healing in conjunction with Loki's magic. For instance, if Loki is injured during a battle, the vampire could heal him faster by sharing its blood, and Loki could then use his magic to boost both of their defenses against their enemies.
Well, his strength could increase even more. Vampires are often depicted as having superhuman strength, and combined with Peter's existing spider - strength, he could become incredibly powerful. His speed might also be enhanced, allowing him to move faster than ever. And his ability to climb walls could potentially be altered. Maybe instead of using his spider - like grip, he could now scale walls more like a vampire, using his newfound agility and grace.