A plot where dinosaurs are used as mounts in a wizarding war would be super exciting. Picture Harry Potter riding a Velociraptor into battle against Voldemort's forces. It would add a whole new level of chaos and spectacle to the wizarding battles we know from the original series.
Perhaps a plot where the characters can use game-like powers to change the outcome of key events in the Harry Potter universe. For example, being able to redo a battle like a game level until they achieve victory.
One plot idea is that an old and forgotten magic in the wizarding world resurfaces, which has to do with dinosaur animagus. A group of students, including some of our favorite Harry Potter characters, start to investigate. One of them turns out to be a dinosaur animagus. Their form gives them unique abilities that are crucial in solving the mystery. They might have to travel to hidden places in the wizarding world, like a long - lost dinosaur preserve that holds the key to a much larger conspiracy against the wizarding and Muggle worlds.
If Harry had a dinosaur familiar, it would be a huge advantage in terms of protection. A large dinosaur could easily fend off most threats. For instance, a triceratops could use its horns to defend Harry from attackers.
One possible exciting plot could be that Voldemort teams up with some of the Avengers' villains. For example, Loki and Voldemort could combine their magic and trickery. The Avengers and the Hogwarts students would then have to figure out how to work together. Iron Man could use his technology to try and find a way to nullify the dark magic, while Harry Potter uses his knowledge of the wizarding world to combat the villains' strategies.
The plot could be full of twists and turns. For example, the Death Eaters might be expecting Harry's attack and have their own counter - measures. But Harry outsmarts them and still manages to blow them up. There could also be moments where Harry is in danger but his quick thinking and powerful magic save the day and allow him to continue his assault on the Death Eaters.
Another theme is adventure. Imagine Harry and his friends exploring a new area filled with dinosaurs, trying to figure out how they got there and how to survive. There's also the theme of discovery, like finding new spells or magical artifacts related to the dinosaurs. For example, in some fanfics, there are special wands made from dinosaur bones that have unique powers. This adds an extra layer of mystery and excitement to the story.
One idea could be that in a hidden corner of Hogwarts, a student discovers a baby dinosaur as their familiar. Maybe it was brought through a magical portal from a prehistoric era. The student then has to keep it a secret while trying to figure out how to take care of it.
A common exciting plot point is when Naruto characters use their unique abilities in the wizarding world. For example, when Naruto uses his shadow clone jutsu to outwit magical creatures or solve problems that the wizards can't. It creates a sense of novelty and power.
One interesting plot point could be Harry using his Time Lord abilities to go back in time and prevent Voldemort from ever rising to power in the first place. This would completely change the course of the Harry Potter story we know.
The fanfic could center around Harry's life outside of the main events of the books. For example, it could explore his summer holidays in more detail. He could be spending time in the Muggle world and using his magic in creative ways to solve normal, everyday problems. He might use magic to help his neighbor fix a broken fence without the neighbor realizing it was magic. This would add a new dimension to his character and show how he can adapt his magical abilities to different situations.