In the world of 'Bleach', Ghost Rider's powers would be very different. His chain could potentially be used to bind Hollows or even Soul Reapers if he were to be an antagonist for a while. His Penance Stare might have an interesting effect on Hollows, perhaps forcing them to relive all the sins they committed while alive. However, it might not work on Soul Reapers in the same way as they have different moral compasses.
If Harry inherits Ghost Rider powers, his whole character arc would change. He'd no longer be just a wizard. His moral compass would be tested in new ways. The Ghost Rider powers are often associated with a form of vengeance. Harry would need to decide how to use these powers for good in the wizarding world. He could start a new era of justice, using his powers to not only fight dark magic but also to punish those who have misused magic for evil purposes.
Well, Harry Potter has magic powers like spells and the ability to use a wand. Ghost Rider has his flaming skull and penance stare. If they were in a fanfiction together, maybe Harry could use his magic to enhance Ghost Rider's attacks. For example, he could cast a spell to make Ghost Rider's chain longer or stronger during a battle.
The Powerpuff Girls have powers like super strength, flight, and energy projection. Ghost Rider has his chain, hellfire, and the Penance Stare. If they were in a fight together, the Powerpuff Girls could use their flight to quickly move around and avoid Ghost Rider's attacks. At the same time, Ghost Rider's hellfire might be able to counter the Powerpuff Girls' energy blasts. For example, Blossom's ice - breath power could be nullified by Ghost Rider's intense hellfire.
Well, if Naruto had Ghost Rider powers, his combat style would be completely transformed. He could use the Penance Stare, which would make his enemies face their sins. In the Naruto world, this could be a huge advantage against villains who have a lot of blood on their hands. For example, against Orochimaru, the Penance Stare might make him relive all the cruel experiments he's done. It would also add a new level of intimidation to Naruto. His already strong willpower combined with the Ghost Rider's power would make him an even more formidable opponent. And his movement would be enhanced, with the ability to ride on his flaming motorcycle, which would be a really cool addition to the Naruto universe.
Combining their powers could also involve Ghost Rider using his chain to lasso a Transfom0rmer and then use the Transfom0rmer's momentum and strength to perform a more powerful attack. This would show how their physical powers can be merged in a creative way.
Harry's relationships would be in flux. His friends would have to adjust to this new side of him. They might be in awe of his power, but also worried about him being consumed by it. His enemies would fear him more. And his romantic relationships, if any, would be affected. A girl might be attracted to his newfound power but also hesitant because of its dark nature. Overall, his relationships would be a complex mix of fear, awe, and a need for understanding.
Naruto could gain enhanced senses from the Ghost Rider powers. In the Naruto world, this would help him in detecting hidden enemies or traps more easily. The ability to ride the flaming motorcycle would also be a new skill. This could be used for quick transportation during missions or battles. He could also gain the power of transformation into the Ghost Rider form, which not only gives him a more intimidating look but also access to all the other Ghost Rider abilities. And with the Ghost Rider's connection to the spirit world, Naruto might be able to communicate with spirits in the Naruto universe, which could lead to new plot developments.
In a High School DxD fanfiction with Naruto and Ghost Rider, their powers could interact in various ways. Naruto's Rasengan, for example, could be combined with Ghost Rider's chain attacks. Naruto's ability to sense danger through his chakra might also be enhanced by Ghost Rider's supernatural senses. They would both be out of place in the High School DxD setting at first, but their powers would quickly make them forces to be reckoned with.
When it comes to Flash, Ghost Rider's ability to ride his flaming motorcycle could be an interesting contrast. Flash could use his super - speed to lead enemies into Ghost Rider's path, where Ghost Rider could then use his hellfire and chains to subdue them. And in terms of Wonder Woman, her magic lasso and Ghost Rider's powers related to the supernatural could have some sort of synergy, like when dealing with magically - enhanced foes.