It's possible that Ezra witnesses some great tragedy that makes him question the Jedi's code of non - attachment. The dark side, with its promise of being able to hold on to things and people, might seem appealing. He could then start to study dark side teachings in secret, and as he delves deeper, he begins to display characteristics of a dark side follower such as anger, hatred, and a thirst for power.
In this fanfiction, it could be that Ezra is deceived by a powerful dark side figure. He might start to believe that the Jedi way has failed him and that the dark side can provide a more effective means to achieve his goals. This could lead him to make choices that gradually draw him deeper into the dark side, like using dark side powers and distancing himself from his former Jedi allies.
One possibility is that he is lured by the power promised by the dark side. Maybe he gets frustrated with the slow progress of the light side in fighting the Empire and thinks the dark side can offer a quicker solution to end the tyranny. He could then start using dark side powers like Force lightning and become a feared figure, turning against his former friends.
Well, one possibility is that she gets frustrated with the slow progress of the 'good side'. Maybe she sees all the bureaucracy and inefficiency in the fight against the dark forces and decides that the dark side can offer a more direct way to achieve her goals, like a more efficient magical society. But this would be a huge shift from her original character.
In the fanfiction, Luke could be influenced by his family ties to the dark side. If he discovers some hidden connection to Vader or Palpatine that he didn't know before, it might make him question his place on the light side. He could think that joining the dark side is a way to understand his true heritage better and gain more power to protect those he loves in a different way than the Jedi would allow.
Perhaps a powerful dark side cult leader. They could manipulate Ezra into believing that their way is the right one and that the dark side is a misunderstood power. The cult leader might use Ezra's own insecurities and desires to draw him into the dark side.
One possible plot could be that Luke is lured by the power the dark side offers. Maybe he gets frustrated with the slow progress of the light side in bringing order to the galaxy. He might see the Sith as more efficient in getting things done. For example, if the Republic is still facing numerous threats and the Jedi are tied by their code not to take extreme measures, Luke could be tempted to cross over.
One possible trigger could be a sense of betrayal. If Ezra felt let down by his friends or mentors, it might push him towards the dark side. For example, if they didn't believe in him during a crucial mission or made decisions that he thought were wrong.
Well, perhaps Harry gets tired of being constantly in danger and feeling unappreciated in the wizarding world. He might be lured by the Dark Side with promises of power and safety. Voldemort could offer him a place by his side, showing him a different view of magic that seems more appealing in a warped way.
In fanfiction scenarios where Naruto turns to the dark side, it could start with a personal tragedy. For example, if Hinata was killed by someone from the Leaf Village under false accusations. This could shatter Naruto's belief in the village and its values. He would then be vulnerable to the influence of the dark side. Once on the dark side, he could use his charisma to recruit others who have also felt wronged by the ninja world. He might form his own group, with different rules and goals from the traditional ninja villages. His journey to the dark side would not only change him but also send shockwaves through the entire ninja world, as he was once seen as a symbol of hope and a force for good.
In this fanfiction, it could be that Rey has some personal losses that make her turn. She might lose someone dear to her and in her grief and anger, she decides that the dark side can give her the strength to prevent such losses in the future. She then starts learning the ways of the dark side, which changes her relationships with her friends.
One possibility is that Adrien feels betrayed by his friends or the heroes around him. Maybe he discovers some dark secrets about the so - called good side that make him question his loyalty. For example, if he finds out that the heroes have been using him or hiding important information from him. This could push him towards the dark side where he might think he can find more truth and power.