His projection magic might be affected by the different magical rules in the Highschool DxD world. Maybe it becomes more powerful or has some new limitations. For example, projecting holy swords could have a different energy cost or be more effective against certain types of devils or fallen angels.
Shirou would fit in as a powerful and unique addition. His combat skills and magecraft would make him a formidable ally or opponent. He could use his projection abilities to create various weapons and tools, which would be very useful in the battles that often occur in the Highschool DxD world.
The theme of redemption also pops up a lot. Shirou might have made mistakes in the past, and fanfics will show him trying to make up for those. Additionally, the exploration of his relationships, whether it's romantic or platonic, is a common theme. For example, his relationship with Saber is often a focal point in many fanfics.
One interesting Shirou Emiya fanfic could be 'A Different Path for Shirou'. It explores what would happen if Shirou made different choices early on in the story. Another is 'Shirou's Hidden Powers', which delves into undiscovered abilities of Shirou Emiya.
Sure. There are some great ones out there. A lot of fanfiction writers like to take the concept of Shirou as an Avenger class and run with it. They might create new storylines that deviate from the original Fate plot, giving Shirou different powers and interactions. It's really interesting to see how different authors imagine his character in this class.
Family or surrogate family is also a theme. It could be about how the characters around him form a sort of family unit and how that affects his growth. Maybe he is taken in by a group of mages who raise him with different values compared to his original upbringing in the official story, and this changes his outlook on life and heroism in the fanfiction.
In this fanfiction, Shirou might be seen as an enigma. His calm and collected demeanor would be different from the more boisterous characters in Highschool DxD. He could potentially be a mediator between the different groups, given his own experiences with complex moral situations in the Fate series.
One possible scenario in such a fanfiction could be Shirou Emiya's unique abilities from the Fate series being introduced into the Highschool DxD universe. His projection magic might cause quite a stir among the devils, angels, and fallen angels in that world.
One aspect that makes it unique is the character interactions. Imagine Shirou, with his strong sense of justice from the Fate series, interacting with the RWBY characters like Ruby, Weiss, Blake, and Yang. Their different personalities clash and blend in interesting ways. Also, the fanfic can explore how Shirou's abilities, like his projection magic, work in the RWBY world which is full of Dust - based technology and different combat styles.
One great 'rwby shirou emiya fanfic' is 'Fate in Remnant'. It combines the elements of the two worlds really well. The author does an amazing job of integrating Shirou's abilities and personality into the RWBY universe. The story has some exciting battles and interesting character interactions.