In a Harry Potter fanfiction where Harry outlives his entire universe, what kind of challenges and adventures does he face?

Well, there could be a number of challenges. For instance, he might struggle with memories or expectations from the previous year. Also, there could be new magical obstacles or interpersonal conflicts with classmates or teachers that weren't there before.

He'd face a lot of challenges. For one, communication would be a big problem. Wizards communicate verbally, and as a raptor, he can't speak. So getting his ideas across to others would be difficult. Also, he might be seen as a strange or dangerous creature in the wizarding world. He could be hunted or locked up if people don't recognize him as Harry Potter. And he'd have to figure out how to use his magical abilities, if any, in this new form.

Well, in such fanfiction, it could be that Harry gains some extraordinary power or discovers a hidden magic that grants him immortality while everyone else around him fades away.

Harry could face the problem of balancing his knowledge from the future and not revealing too much. There could also be issues with dealing with younger versions of his friends and enemies. And, of course, he'd have to navigate the magical world of the second year without raising too many suspicions.

One challenge could be getting the wizard students to take Muggle Studies seriously. Many wizards might think of Muggles as inferior, so Harry would have to work hard to change that perception. He would need to make the subject interesting and relevant to them.

One challenge could be sensory overload. With enhanced senses, there would be so much more information coming in. For example, in a crowded Hogwarts corridor, he might be bombarded with all kinds of smells, emotions, and sounds. This could be overwhelming and make it difficult for him to focus on important things like his studies or a mission.

As king in fanfiction, Harry Potter would face several challenges. Firstly, there's the issue of uniting the different factions within the wizarding world. The Slytherins, who have often been at odds with Harry, might not be so easily won over. He also has to deal with the economic side of things. Ensuring that there are enough resources for all wizards and witches, from potion ingredients to housing. And then there's the matter of public opinion. Not everyone might agree with his decisions, and he has to find a way to listen to the people while still making the right choices for the long - term good of the wizarding world.

He might face opposition from the school authorities or other wizarding institutions. They could see his army - building as a threat. Also, finding resources to train and equip the army could be difficult. Magic items and training grounds are not easy to come by. And he has to keep the existence of the army a secret from the Death Eaters, which adds another layer of difficulty.

Another challenge would be handling the different houses. Each house has its own identity and sometimes rivalries can get out of hand. A new headmaster would need to find ways to promote unity among the houses, like through new inter - house competitions or joint projects.

In the fanfiction, Harry with his custom wand could have adventures in the world of magical creatures. He could communicate with creatures that were previously unapproachable, like the giant serpents in the Forbidden Forest. His custom wand might have a special ability to understand and interact with these creatures on a deeper level. He could also use it to protect these creatures from those who would harm them, leading to a series of exciting and dangerous encounters.