What would be the most exciting plot twists in a Harry Potter - Deathstroke son fanfiction?

A really interesting plot twist could be that Harry's Mikaelson heritage makes him immune to some of Voldemort's dark magic. This would completely change the dynamic of their battles. Another twist could be that the Mikaelson family shows up at Hogwarts to protect Harry, causing chaos among the students and teachers who have no idea about this new, powerful family. Or perhaps Harry discovers that his connection to the Mikaelsons is the key to unlocking a new, more powerful form of magic that was previously unknown in the wizarding world.

One interesting plot twist could be that Harry's wizarding powers are enhanced by Wayne's technology. Imagine Harry using some sort of high - tech broomstick or a magical device upgraded with Wayne Enterprises' tech. It would be a cool blend of magic and technology.

One interesting plot twist could be that Harry's true nature is revealed during a crucial battle. Instead of using his normal wizarding spells, he taps into his Lucifer - given powers and turns the tide in a way that no one expected. But this also makes everyone around him question who he really is.

One plot twist could be that Harry's real father was not James Potter but an unknown figure from Hawkgirl's world. This would completely change the dynamics of his family story. Another could be that Voldemort discovers Harry's Hawkgirl heritage and tries to use it against him by creating a spell that combines dark magic with the technology or powers associated with Hawkgirl's world.

One plot twist could be that Harry's vampiric side gives him an unexpected advantage in fighting Voldemort. Maybe he can use his vampire speed to dodge curses better. Another could be that the wizarding world initially rejects him because of his Dracula heritage, but later realizes they need his unique powers. Also, it could be revealed that Dracula had some connection to the founders of Hogwarts long ago.

One possible plot twist could be that Neville discovers a new and powerful spell that turns the tide of the battle. Another could be that Draco Malfoy has a change of heart and secretly helps the Order of the Phoenix during the final battle.

A really interesting plot twist in some fanfictions is that the Hogwarts houses are not what they seem. For example, Gryffindor was originally founded to be a sort of 'cover - up' for a secret society within Hogwarts that had a much darker purpose. Or that Slytherin was actually trying to protect the wizarding world from an even greater evil, but his methods were misinterpreted. This changes the whole dynamic of the story and how we view the different houses.

One interesting plot twist could be when Caesar turns out to be a long - lost wizard. This completely changes the dynamic as he then has to learn about his magical heritage while also dealing with the existing Harry Potter world's problems.

In some 'Harry Potter Sith fanfiction', a plot twist could be that a seemingly good character is actually being influenced by Sith powers all along. For example, a teacher at Hogwarts who is secretly using Sith mind - control techniques on students to further their own dark agenda.

In some fanfics, a plot twist could be that a character from The Originals turns out to be related to a major Harry Potter character. For example, it might be revealed that a vampire has a long - lost wizard relative in the Potterverse. It completely changes the dynamics of how the two worlds interact.