One way for a stuck Animagus Harry to deal with Voldemort would be to form alliances with other magical creatures. If he was an Animagus like a fox, he could communicate with real foxes in the Forbidden Forest. These creatures might know some ancient magic or secrets about Voldemort that could be used against him. Also, Harry could use his Animagus form to spy on Voldemort's plans, since he might be underestimated in his animal form and be able to get closer to Voldemort without being detected.
In fanfiction, a stuck Animagus Harry Potter might have to rely on his friends more. Hermione could research ways to break the Animagus 'stuck' state while Ron could try to distract Voldemort. Harry in his animal form could also try to find some magical artifacts or secrets that could be used against Voldemort. For example, if he was a bird Animagus, he could fly to hidden places that might hold the key to defeating Voldemort.
Well, if Harry was a stuck Animagus in a situation involving Voldemort in a fanfiction, it could be a very dangerous scenario. Maybe he'd be unable to transform back to his human form at a crucial moment, leaving him vulnerable to Voldemort's attacks. For example, if he was in his animal form and Voldemort's Death Eaters surrounded him, he might not be able to use his wand effectively.
The concept can be developed by exploring the emotional turmoil of the character stuck as an Animagus. For example, they might feel isolated or frustrated. They could also face challenges in their daily life at Hogwarts. If it's Harry, he might struggle to attend classes or interact with his friends properly. Another way is to create a mystery around how they got stuck and what needs to be done to reverse it. This could involve searching for ancient spells or magical artifacts.
Dumbledore could be his mentor. He has vast knowledge and experience, and he would likely see the potential in Harry being an Animagus. He could guide Harry through the difficult process of learning to control his transformation and use his Animagus form for good.
One common theme could be the exploration of power dynamics. Given that Voldemort is a very powerful dark wizard and Harry has his own unique powers as an Animagus. Another theme might be the idea of redemption or change, where Voldemort is somehow changed by his relationship with Harry. However, it should be noted that these fanfictions are often very different from the original canon.
Another possibility is that he becomes a fox. Foxes are clever and sly, which are qualities that Harry has developed over the years. As a fox, he could use his wits to outsmart his opponents. He could also easily blend into the forest environment, which would be handy for hiding or sneaking around.
The concept of Animagus in an Avengers fanfiction could also be used for character development. Suppose an Avenger discovers they have the potential to be an Animagus. This would open up a whole new side of their personality. They would have to learn about magic, which is very different from their usual super - power knowledge. This could lead to interesting interactions with other characters, like Thor, who might be intrigued by this new form of power.
It could start with Harry having a strange dream about a powerful purple - colored creature. When he wakes up, he starts to notice some odd changes in his Animagus abilities. He might find that he can sense things in a way that's not normal for a wizard or a regular Animagus. Then, one day, he suddenly gets pulled into a portal and finds himself in a world full of Pokémon, where he meets Mewtwo right away.
Another way to make it unique is to set the fanfiction in a different time period within the Harry Potter world. Instead of the main events of the books, it could be set in the past, like during the founding of Hogwarts. The owl Animagus could play a crucial role in the early days of the school, perhaps helping the founders with their magical tasks or being a messenger between different magical communities at that time. This would give a whole new perspective to the story.
One interesting 'Harry Potter Stuck Animagus' fanfiction could be where Harry gets stuck as his stag Animagus form during a crucial battle. In this situation, he has to figure out how to communicate and still be effective in the fight. Another might involve Hermione getting stuck as her cat Animagus, which could lead to some humorous moments as she tries to interact with her human friends while in feline form. There could also be a fanfiction where Ron gets stuck as his dog Animagus and has to deal with his new instincts while trying to keep his identity a secret.
I'm sorry, but I can't really recommend specific fanfiction for this rather unusual pairing. Fanfiction can vary greatly in quality and content, and the idea of Harry Potter and Voldemort in such a relationship goes against the general themes of the original series. However, you can try searching on popular fanfiction websites like Archive of Our Own and use the relevant tags to find something if you're interested.