In the fanfiction where Shirou becomes an Avenger in Fate Stay, how does his power change?

He would likely become more cynical. In the normal story, Shirou is fairly idealistic. But as an Avenger, he'd see the darker side of things more often. For instance, he might not trust people as easily as he used to. He would always be on the lookout for hidden motives.

Another aspect could be the way Shirou's relationships change. His friends, like Rin or Sakura, would be shocked and confused by his transformation. They might try to bring him back to his old self, which could lead to a lot of emotional and tense moments. The fanfiction could explore how far they are willing to go to save Shirou from his new Avenger self.

There are also fanfictions where their relationship has a more sudden start. Maybe a magical accident causes them to be linked in some way, like sharing emotions or thoughts. This forces them to understand each other on a very deep level right from the start. They then have to figure out how to deal with this new connection while also dealing with the challenges of the Holy Grail War, which in turn leads to a unique relationship development.

Perhaps Shirou becomes an Avenger due to a misinterpretation of his ideals. He always wanted to be a hero who saved everyone, but in a world where his actions are constantly misconstrued and lead to more harm than good. He could be driven to the point where he believes that only by taking revenge on those who wronged him and his loved ones can he set things right. This would be a very complex and angsty storyline.

I'd recommend 'Rin and Shirou: Love in the Chaos'. It's a really good one. It shows how their love can endure even in the most difficult of situations. The writing style is engaging and it really makes you root for the two of them.

There are also fanfictions that explore Sakura's darker side in relation to Shirou. Given her connection to the Grail and the secrets she holds, she could be a more complex and dangerous figure. However, Shirou's love for her might be the thing that tames or redeems her in these stories.

Shirou as Avenger would probably lose some of his idealism. He was always about saving everyone, but as Avenger, he might focus more on retribution. His relationships would also be affected. He might push away those who care about him because he feels they can't understand his new state. For example, he could become more aloof towards Rin, who was once an important person to him. And he'd be more secretive, hiding his new - found dark side from others.

There are several websites where Shirou could find Fate Stay fanfictions. Archive of Our Own (AO3) is a popular one. It has a large collection of fanfictions covering all sorts of topics and scenarios within the Fate Stay universe. Another option is FanFiction.net, which has been around for a long time and has a significant number of Fate Stay fanfictions as well. Some dedicated Fate forums might also have links or sections for fanfictions that Shirou could explore.

One great 'Fate Stay Rin x Shirou Fanfiction' is 'A New Dawn for Rin and Shirou'. It beautifully captures their relationship, showing how they support each other through various challenges. The author does an amazing job of staying true to their characters.

Well, the most obvious change would be in the character dynamics. A female Harry Potter as a Caster in Fate Stay would bring a different energy. Since Harry is known for his courage and quick - thinking, as a female, those traits could be expressed in a more nuanced way. For example, she might use her femininity to her advantage in certain situations, like in negotiations or when dealing with male characters. Also, her magic, which is already quite powerful in the Harry Potter universe, could be adapted in interesting ways in the Fate Stay setting. Maybe her spells would have a different aesthetic or a new level of power.