Sanguini's character development could be centered around his transformation from an outsider figure to a respected teacher. At first, the other professors might be skeptical of him teaching DADA. But as he proves his worth through his unique teaching methods and knowledge, he gains their respect. He could also form special bonds with some students who are interested in the darker aspects of magic. He would teach them not only how to defend against dark forces but also how to understand and co - exist with them in a way, which is a very different approach compared to traditional DADA teachings.
As the teaching progresses, they could develop a sort of mentor - mentee relationship. Harry would be constantly trying to steer Tom away from the Dark Arts, while Tom would be trying to learn as much as he can from Harry. However, there would always be an underlying tension because of Tom's future as Voldemort. Their relationship might be a complex dance of trust and suspicion.
For Harry, he could become more confident in his teaching abilities. He has always been a learner, but now he has to be the one imparting knowledge. The Marauders might develop a new respect for the importance of DADA. For instance, Sirius might see it as more than just a subject to goof around in. Remus could gain new insights into teaching methods that he can later use when he becomes a teacher himself at Hogwarts.
In this fanfiction, Sanguini could start by explaining the history of vampires in relation to the wizarding world's dark arts. He could talk about how vampires have been both feared and sometimes used as allies in battles against the dark side. Then, he could move on to practical lessons, like teaching students how to identify a vampire's lair and what precautions to take when approaching one. His lessons might also include how to use vampire fangs in certain potions for defensive purposes, making DADA a much more interesting and dangerous subject.
His creativity would likely expand. Since he's teaching himself fanfiction, he would start to view his own world from different perspectives. This could make him more empathetic towards others in the wizarding world as he tries to understand different characters' motives and feelings through writing.
Harry's sense of justice would be further emphasized. Saving the goblin child shows that he doesn't discriminate based on species. His confidence would also grow as he overcomes the challenges in saving the child. He would become more respected among the goblin community too.
Well, it could be that Harry's hands - on experiences from his own time at Hogwarts make his teaching really engaging. He might share his encounters with dark creatures and how he overcame them. This could make Tom more aware of the practical side of DADA.
At first, it might be a bit strange for all of them. But as Harry starts teaching his parents, they would begin to understand him better. They would learn about his struggles at Hogwarts, and he would learn about their lives before he was born. This mutual understanding would deepen their relationship. Harry would no longer just be their son, but also their teacher in a way, and they would grow closer through shared knowledge and experiences.
Well, it would be quite an interesting scenario. Percy Jackson is a demigod with his own set of skills and experiences. Teaching Defense Against the Dark Arts at Hogwarts would mean he'd bring a whole new perspective. He could teach students how to fight off monsters using his sword - Riptide, which is a very different approach from the usual spells taught at Hogwarts. His knowledge of Greek mythology might also come in handy when dealing with dark creatures that have their roots in ancient myths.
Luna Lovegood could be an interesting choice. She has a very unique view of the wizarding world. As a DADA teacher, she would teach in her own offbeat way. For example, she might introduce the students to the idea of defending against invisible creatures that most wizards don't believe in. Her lessons would be full of creativity and would make the students think outside the box.
Their relationship could start off as a bit tense. Scorpius might be initially hesitant to learn from Harry, given their families' history. But as Harry shows him genuine kindness and a willingness to share his knowledge, Scorpius would start to respect Harry. Eventually, they could become something like mentor - mentee friends.