What are the potential storylines in a Harry Potter Master of Death x Thor fanfiction?

Well, in such a fanfiction, perhaps Harry Potter, being the Master of Death, has some knowledge or power that Thor needs. For example, if there is a dark force in Asgard that is related to death in some way, Thor might seek Harry's help. Their encounter could lead to a cultural exchange too, with Harry learning about Norse mythology and Thor about the wizarding world.

Harry could use his invisibility cloak to his advantage in Thor's world. He could spy on enemies or gather information without being detected. His ability to communicate with spirits as the Master of Death might also give him an edge. He could perhaps communicate with the souls of fallen Asgardians and learn their secrets.

A great crossover idea might involve Harry sharing his knowledge of death and resurrection with Thor. Thor, having faced death and loss in his own world, could be intrigued. Maybe they could work together to bring back a fallen hero from either of their worlds. Also, the Elder Wand could have some sort of interaction with Thor's hammer. What if the power of the Elder Wand could enhance the abilities of Mjolnir for a short time?

One interesting storyline could be how Harry Potter's experiences with death and his mastery of it influence Tsuna in a new magical world that combines the universes. Maybe Harry teaches Tsuna some of his unique magical skills related to death, like communicating with the dead, which could be used in Tsuna's battles against his own foes.

There could be a wise old wizard who has knowledge about the true nature of the Master of Death and becomes Harry's mentor. Maybe a powerful magical creature that is drawn to Harry's power and offers its assistance.

Another potential set of new characters could be ancient wizards or witches who were once associated with the concept of the master of death. They could come back to either guide Harry or challenge his claim to the title. This would add a lot of depth to the story as Harry would have to prove himself to these predecessors or learn from their experiences.

Cultural clashes are also popular. The wizarding world of Harry Potter has its own set of values, traditions, and social structures, while Magi has a different set. Fanfics may explore how Harry, as an outsider in the Magi world, navigates these differences, or how characters from both worlds react to each other's cultures.

Another storyline could involve Harry being trained in both magic and combat skills by Tony. They could team up to fight villains from both the wizarding world and the Marvel universe. Harry could use his magic to counter the superpowers of Marvel villains while Tony provides the technological backup.

One potential storyline could be Bucky being brought into the wizarding world by a magical accident. He then has to learn about magic from scratch. He might befriend Harry and they could train together, with Bucky teaching Harry some of his combat moves and Harry teaching Bucky magic. Another could be Bucky being on a mission in the wizarding world for some reason related to his past in the Marvel universe, and getting caught up in the fight against Voldemort.

One problem could be that it misrepresents the values of the original Harry Potter series. The series promotes equality and freedom, and the'slave master' concept is the opposite. Another issue is that it might make some fans uncomfortable, especially those who are sensitive to themes of slavery and oppression.