Well, in a fanfiction, one way it could work is if the concept of the Master of Death from Harry Potter was translated into the world of Soul Eater. Maybe the power of being the Master of Death could give the character an edge in dealing with the Kishin and the madness in Soul Eater. For example, the invincibility that might come with mastering death could help in battles against powerful foes.
He might use his power to defeat the Kishin more easily. The Kishin feeds on souls and is a major threat in Soul Eater. As Master of Death, Harry could have some special ability to either protect souls or directly combat the Kishin's power over them.
One way it could work is through the concept of alternate universes. In a Marvel - Potter crossover fanfic, the power of being the Master of Death could be seen as a sort of super - power. Harry could use his mastery over death to perhaps revive fallen heroes in the Marvel universe, like bringing back Bucky Barnes before his resurrection in the main storyline. This would create a whole new dynamic and set of relationships.
Well, in a RWBY fanfiction with Harry Potter as the Master of Death, one way it could work is through a cross - dimensional portal. Harry could be accidentally transported to the RWBY universe. His status as the Master of Death might give him unique powers there. Maybe he could use the Deathly Hallows' powers to combat the Grimm. For example, the Invisibility Cloak could help him in stealth missions against the Grimm, and the Elder Wand could enhance his combat abilities against powerful foes in RWBY.
It could work if the Infinity Stones and the Deathly Hallows had some sort of connection. Since Harry is the Master of Death, he might be sensitive to the power of the Stones. The Avengers are dealing with the Stones' power, and Harry could bring his knowledge of dealing with powerful magical artifacts from his world. He could teach the Avengers about the consequences of misusing powerful items and how to safeguard against the corrupting influence of such power.
The plot could develop in a very dark way. Harry might start hunting down the Order of the Phoenix members. He would be using his knowledge of the good side to help the Death Eaters. For example, he could lead them to the secret passages in Hogwarts.
He'd be curious. Harry has always been interested in new things related to magic. So he'd likely start reading with great interest, but might soon be shocked by some of the more extreme elements in Soul Eater.
Well, perhaps Harry could be a weapon that has the power of his magic from the Potter world. He might be used by a Soul Eater character to fight against evil souls. Maybe his wand could transform into a more weapon - like form in the Soul Eater world.
Perhaps it indicates that the character is in a state of transition. In the Harry Potter universe, Death Eaters can go through various changes. A blurry Death Eater might be someone who is in the process of fully becoming a true Death Eater. They could be struggling with their loyalty, and this 'blurry' state reflects their internal conflict. For instance, they might have some good in them still but are being pulled towards the dark side, and the author uses this blurry description to show that in - between state.
One way a Death Note and Harry Potter crossover could work is by having a Death Note fall into the wizarding world. Maybe a Muggle - born student discovers it and starts using it to deal with dark wizards in secret. However, they soon realize the moral and ethical implications are just as complex as in the original Death Note story.
Yes, there might be. The world of fanfiction is vast and diverse. There are often crossovers that combine different popular franchises like Harry Potter and Soul Eater. Fans love to create unique scenarios where characters from different universes interact. However, the quality and availability can vary. You can start your search on popular fanfiction websites to see if such a story exists.