Well, in some 'Harry is Dean's son fanfiction', a cool plotline could be his discovery of magic. Since Dean is a half - blood wizard, Harry might have a different experience learning about magic at home. He could be more exposed to the wizarding world's cultural aspects earlier. Also, his friendships might form in a unique way. For example, he could be closer to the Gryffindor students from the start because of his father's house.
In this type of fanfiction, an interesting plotline might involve Harry's family history on his father's side. Maybe there are secrets or a special lineage related to Dean's family that Harry uncovers as he grows up. This could lead to new adventures and challenges. His relationship with his father, Dean, could also be explored in depth, showing how Dean raises Harry, the lessons he imparts, and how their bond affects Harry's journey at Hogwarts and in the wizarding world.
One possible plotline could be Harry going on hunts with Sam and Dean. She might use her own unique skills, perhaps some magic - like in the Harry Potter world - to help them out in a way that surprises the brothers. Another could be her trying to fit into their world of hunting while also dealing with the typical sibling rivalries and protectiveness.
One possible plotline could be Harry struggling to come to terms with his unique parentage. He might face discrimination or fear from others in the wizarding world who don't understand. Another could be his relationship with Death. Maybe Death has certain tasks or lessons for Harry that he must fulfill or learn. And also, his friends' reactions to this revelation would be interesting. Hermione might be eager to research about it while Ron could be a bit more skeptical at first.
One interesting plotline could be Harry's struggle with his new identity. Since Hades is the god of the underworld, Harry might face discrimination or fear from others in the magical world. He could also have unique powers related to death and the underworld, like being able to communicate with the dead more easily. Another plotline could involve his relationship with his father Hades. Hades might try to groom Harry to take over some of his underworld duties, while Harry is conflicted because he also has a life in the wizarding world he doesn't want to abandon.
One possible plotline could be Harry's struggle with his dual heritage. He has to deal with the wizarding world of Harry Potter and the Norse mythology world of Loki. For example, he might face challenges in learning magic in a way that combines both magical systems. Another plotline could involve his relationships with other characters. Since he is the son of Loki, he might have a more complex and devious side to his personality, which could create interesting dynamics with his friends like Hermione and Ron. They might be initially suspicious of his motives at times.
Well, perhaps a plotline where Harry has to use his Pegasus - related powers to save Hogwarts from a new and mysterious threat. Since he is the son of Pegasus, he might have the ability to fly faster and more gracefully than on a normal broomstick, allowing him to reach places quickly and perform daring rescues. Also, his connection to Pegasus could lead to new magical creatures being introduced into the story, like more mythical flying beasts that he can befriend or control.
One interesting plotline could be Harry exploring his new powers as the son of Hypnos. Maybe he can use sleep - related magic in unique ways, like putting his enemies into a deep slumber during battles.
One interesting plotline could be Harry having to face new and more powerful dark wizards that are emerging in the post - Voldemort era. He might have to use his skills in a different way. Another could be Harry exploring his family's history more deeply and finding secrets that change his perception of himself. Maybe he discovers some long - lost relatives who have their own magical abilities and stories.
A plotline could involve Harry's discovery of his true parentage. Maybe he grows up thinking he's just James' son, and then finds out about Regulus. This could lead to a journey of self - discovery, as he tries to understand the parts of himself that come from both his fathers. He might also face opposition from some in the wizarding world who can't accept this unusual family situation.
One possible interesting plotline could be Harry's discovery of his connection to Artemis. This might lead to him having unique powers related to the moon or the hunt, like enhanced archery skills or the ability to communicate with certain magical creatures associated with Artemis. Another could be his interactions with the existing characters in the Harry Potter universe, such as how Hermione and Ron react to his newfound heritage.
One interesting plotline could be Harry's discovery of his unique powers as the 'Son of Chaos'. Maybe he can manipulate reality in ways that are completely unexpected, like creating new magical creatures or changing the rules of existing spells.