An OC who is a street - smart magician that Dr Strange initially underestimates. This OC could use their unorthodox magic, learned from the gritty streets rather than the sanctums, to help Strange in a battle against a powerful enemy that requires thinking outside the box of traditional magic.
One idea could be an OC who is a time - traveling apprentice of Dr Strange. They could come from a future where magic has been corrupted and they travel back in time to learn from Strange and prevent the corruption.
One idea could be a crossover where Hermione's magic from the wizarding world and Dr. Strange's mystic arts collide. Maybe they meet in a dimension where both their forms of magic are being threatened and they have to combine their knowledge to save it.
One idea could be a what - if scenario. What if Strange and Christine had a moment of passion during a time - traveling adventure? Maybe they kiss in a parallel universe where they're not bound by the normal rules of their relationship in the main MCU timeline.
One idea could be that a magical anomaly brings Harry Potter to the world of Dr Strange. Harry, with his unique magical knowledge from Hogwarts, could team up with Dr Strange to fight a new dark force that is threatening both their realms. Their different styles of magic would make for an interesting dynamic as they learn from each other.
The story of Dr Strange and the Dark Dimension is quite fascinating. He has to navigate the complex and dangerous realm of the Dark Dimension. There are all sorts of strange creatures and powerful magic there. And his struggle to keep the Dark Dimension from encroaching on our world while also dealing with the power - hungry entities within it makes for a great story. His ability to manipulate time and space within the Dark Dimension is also a very interesting aspect of this story.
One idea could be that they have to team up to solve a multiverse - related mystery. Their different magical and technological skills complement each other. For example, Dr Strange's magic can open portals to different dimensions, and Tony's tech can analyze the strange energy signatures they find there.
One plot idea could be that Dr Strange discovers a prophecy that predicts the end of the magical world. To prevent this, he must rewrite the stars, which means he has to find a way to change the fated events. He embarks on a journey through different dimensions to find the key to rewriting the stars, facing various magical creatures and challenges along the way.
A really interesting plot idea could be that Strange's magic starts to seep into the My Hero Academia world, causing some quirks to mutate in unexpected ways. Maybe a character like Todoroki suddenly has his fire and ice powers combined in a new, magical way because of the influence. Another idea is that the Infinity Stones somehow end up in the My Hero Academia universe and the heroes have to figure out how to keep them safe from villains.
One plot idea could be that Harry discovers a hidden portal in Hogwarts that leads to Doctor Strange's Sanctum Sanctorum. He then has to learn the ways of the mystic arts to close a rift that is endangering both the wizarding world and the world of Doctor Strange. Along the way, he teams up with Doctor Strange and they exchange knowledge about their respective magics.
A possible crossover could involve the characters' moral compasses. Harry Potter has a strong sense of right and wrong based on his experiences at Hogwarts. Dr Strange, on the other hand, has a more complex view of morality due to his dealing with different dimensions and powers. A fanfiction might explore how they interact when faced with a difficult moral decision, like whether to sacrifice one life to save many.
One interesting fanfiction could be where Dr. Strange and Tony Stark team up to stop a multiverse - level threat. They combine their unique skills, with Strange's magic and Stark's technology, creating amazing and unexpected solutions along the way.