One interesting plot could be Harry being reborn as a Stark and using his magical knowledge in the world of Westeros. He could secretly use magic to protect his family from the various threats like the Lannisters or the White Walkers. Maybe he uses a spell to enhance the strength of the Stark soldiers' weapons.
He would likely become more hardened. In the Harry Potter world, he had his friends and Hogwarts as a sort of safe haven. As a Stark, he'd be in a much harsher world. He'd probably be more aggressive in protecting his family and territory.
Tony Stark is very confident and self - assured. As Harry Potter, this would make him a more assertive protagonist. He might not be as hesitant as the original Harry in some situations. For example, when facing Voldemort, he would likely be more direct and less fearful. His quick - thinking nature would also speed up the plot. Instead of waiting for things to happen, he would be more proactive in finding solutions to the problems in the wizarding world.
His sense of justice changes. In the wizarding world, Harry was more about individual justice against Voldemort. But as Ned Stark, he is concerned with the justice of his entire realm. He has to deal with laws, traditions, and the balance of power among different houses. His view of loyalty also broadens. He is now loyal not just to a few friends like in Hogwarts, but to his family, his bannermen, and his people. And his communication style changes. He has to use the more formal and diplomatic language of Westeros, rather than the casual talk he had with his wizard friends.
In this fanfiction, an exciting plot point might be Tony Stark's reaction to the magic he discovers as Harry Potter. He's used to technology, so magic would be both fascinating and frustrating for him. He might try to reverse - engineer magic, which could lead to all sorts of interesting situations. Also, his Stark - like confidence and bravado could put him at odds with some of the more traditional wizarding families. His attempts to modernize Hogwarts, like bringing in new forms of communication or security systems using his knowledge from his previous life, would be a major plot point that could change the whole Hogwarts experience.
One interesting plot point could be how Harry, with his knowledge of magic, might introduce new elements to the world of Westeros. For example, he could use magic to heal the sick in a way that is not common in that world. Another point could be his interactions with the Stark family. Since he is reborn as Ned Stark, he would have a different dynamic with his children compared to the original Ned Stark, perhaps being more open - minded due to his past as Harry Potter. Also, his approach to the political intrigue in Westeros might be different. He might use some of the strategies he learned in the wizarding world to deal with the power struggles in the Seven Kingdoms.
It depends on the situation. In the wizarding world, Harry Potter would be more powerful as he can use magic which is a fundamental part of that universe. He can cast spells to defeat enemies, protect himself and others, and manipulate the environment around him.
In fanfiction that combines Harry Potter and Tony Stark, 'petal' could potentially be used in a variety of ways. It might be part of a magical plant in the Harry Potter aspect, like a petal from a rare flower used in a potion. In relation to Tony Stark, perhaps it could be part of a new technology he's developing that has an aesthetic inspired by a petal's shape. However, without more context, it's hard to be certain exactly how it would be incorporated.
At the start, Tony could be a bit skeptical of Harry's abilities. But when Harry shows off a spell, like making a Patronus, Tony would be impressed. They would then start to work together. Harry could use his magic to help Tony get into places that are otherwise inaccessible, and Tony could provide Harry with some cool gadgets. For example, Tony could give Harry a device that helps him communicate with the wizarding world more easily. They would learn from each other and form an unlikely friendship.
Yes, there are quite a few fanfictions out there that combine the worlds of Tony Stark from the Marvel universe and Harry Potter. Writers like to explore crossovers where the genius of Tony Stark might interact with the magic of Harry Potter's world. It can be really interesting to see how his technology would mesh with magic spells and wizardry.