One popular fanfic idea could be exploring the backstory of the Divination teacher. Maybe she had a hidden past as a powerful seer in a different wizarding community before coming to Hogwarts. This could add depth to her character.
A great fanfic idea could be that the DADA teacher is actually an animagus who uses their animal form to secretly spy on the Death Eaters. They could be a cat or a bird, for example. In the fanfic, Harry and his friends might start to suspect something strange about the teacher when they notice the animal always seems to be around when important information is being passed. Eventually, they discover the truth and the teacher becomes an even more important ally in their fight against the dark forces.
Well, if Ed was a teacher in a FMA - Harry Potter crossover fanfic, it could be really interesting. He might teach alchemy in Hogwarts. Imagine him trying to explain the principles of alchemy to the wizards, who are used to magic in a different way. He could get frustrated with the lack of understanding at first, but eventually find students who are really into it. He might also have some run - ins with the more traditional teachers who don't quite understand his methods.
One interesting 'Harry Potter teacher fanfic' could be about Professor Snape having a secret friendship with a student that changes his perspective on teaching. In some fanfics, teachers might have different backstories that weren't explored in the original books. For example, a fanfic could delve into Professor McGonagall's early days as a teacher and her challenges.
In a crossover fanfic, Ed might teach a class on the practical applications of energy manipulation. Alchemy in FMA is all about understanding and controlling energy. He could show the Hogwarts students how to use their magic in more efficient and creative ways, similar to how he uses alchemy. For instance, he could teach them how to focus their magic energy for a more powerful spell, just like he focuses his alchemical energy for a difficult transmutation.
Well, perhaps the Divination teacher discovers a long - lost prophecy that has something to do with one of the students. She then has to figure out how to handle this information without causing panic at Hogwarts.
They expand it by exploring the teachers' personal lives. For example, a fanfic might show Professor Trelawney's family history and how it affects her divination skills. This adds depth to the world.
I'm not entirely sure if there is a specific 'Harry Potter is a teacher' scenario within Twilight fanfiction. Twilight and Harry Potter are two very different universes, and while fanfiction can be quite creative and cross - over in strange ways, this particular combination seems rather unusual.
It could work by having Ed teach a unique subject that combines elements of both FMA and Harry Potter. For example, a class on magical alchemy. He would use his knowledge from FMA to introduce different techniques and concepts that the students of Hogwarts have never seen before. His presence would also create some interesting interactions with the existing characters in the Harry Potter universe, like Dumbledore or Snape.
Well, just based on that title alone, it's difficult to determine its quality. There are so many aspects that make a Harry Potter fanfic great. For example, it could explore new relationships between the characters, or create exciting new magical adventures. But we don't know if 'skull is harry potter fanfic' does any of those things. So, it might be good, it might not.