In a 'Harry Potter in a Custody Battle' fanfiction, it might be that Harry's muggle relatives and the wizarding community are in a custody battle. The Dursleys could claim they've been taking care of Harry all these years and have the right to keep him. But the wizarding world, like Hogwarts professors, might argue that Harry belongs with his own kind where he can learn magic and be safe from the threats only the wizarding world understands. There could be courtrooms filled with magic spells and arguments about what's truly best for Harry.
The key characters could be Harry's muggle relatives. The Dursleys have been his legal guardians in the muggle world for a long time. They might be fighting to keep Harry in their home. On the wizarding side, Hagrid could be important. He was the one who introduced Harry to the wizarding world. He might step in to ensure Harry is placed in a proper wizarding family or environment. Also, Hermione and Ron could play a role. They are Harry's best friends and would surely fight for Harry to be in a place where he can be happy and learn magic freely.
Perhaps in this fanfiction, the Battle of NY is a result of a magical artifact being discovered in NY that has the power to change the balance of the wizarding world. Harry and his friends, along with some American wizards they meet, have to race against time to keep it out of the hands of Voldemort or other dark forces. They face challenges not only from the bad guys but also from the muggle authorities who are starting to suspect something strange is going on.
Perhaps in this fanfiction, Harry has some sort of special ability or connection that draws Clark Kent's attention. Clark, being the upstanding hero he is, decides to use his influence as Superman to make sure Harry is placed in a proper and loving custody situation. For example, he could convince a judge who is a big fan of Superman to look more closely at the case.
One possible plot could be that in an alternate universe, Harry somehow becomes responsible for Pepper Potts' well - being. Maybe there was a magical or scientific accident that linked their fates. Harry, with his own set of skills and values, would have to navigate the world of Stark Industries while also protecting Pepper from various threats, both corporate and otherwise.
The plot could develop with Voldemort trying to use Harry to open the Chamber of Secrets again, believing that there are secrets within that could enhance his power further. Harry, on the other hand, might find allies among the Death Eaters who are not fully loyal to Voldemort and use them to create a revolt from within. Also, Dumbledore and the Order of the Phoenix would surely be trying to rescue Harry, which could lead to many intense battles and rescue attempts.
An interesting plot might involve a prophecy that links the fate of both worlds. The prophecy states that only by combining the power of the Elder Wand and the sword of Aragorn at Helms Deep can the ultimate evil be defeated. Harry, along with Hermione and Ron, journey to Middle - earth. They face many challenges on the way. At Helms Deep, they have to work together with the people there. Harry uses his magic to enhance the strength of the defenders, while the others from Middle - earth contribute their combat skills. There could be a sub - plot where some of the characters from both worlds develop romantic interests in each other, adding an extra layer of complexity to the story.
Well, it could be about Harry Potter getting into a battle to gain custody of something or someone. Maybe it's about him fighting for the custody of a magical creature or even a young wizard in need of protection. He might use his magic skills and the support of his friends to win the custody battle in this fan - made story.
One possible plot could be that Harry and his friends accidentally get transported to the Battle of Helm's Deep. They use their magic to turn the tide of the battle in unexpected ways. For example, Hermione could use a spell to make the walls of Helm's Deep even stronger, while Harry and Ron lead a group of wizards to fight off the orcs from above using broomsticks.
The plot could involve a situation where a new form of dark magic is unleashed in the wizarding world, which spreads like wildfire and causes destruction similar to 911. The Ministry of Magic is caught off - guard. Hermione, with her vast knowledge, starts researching a way to counter this magic. Meanwhile, Ron and Harry lead the effort to protect the civilians. They set up shelters in places like the Room of Requirement and use Patronuses to guide people to safety. As they dig deeper, they discover that this dark magic was a planned attack by a long - hidden dark wizard group who wants to take over the wizarding world.
In this fanfiction, perhaps there would be new magical discoveries. Since the battle has shaken up the magical world, new spells or magical artifacts could be unearthed. Also, relationships might change. Ron and Hermione could be planning their wedding and inviting all their friends. And Neville, having proven his bravery during the battle, could take on a teaching role at Hogwarts, passing on his knowledge of herbology to the next generation of students.