Adding some new original characters can also be interesting. For example, a young dragon who looks up to Spyro and wants to help him during the Dark Days. This character could start out inexperienced but grow throughout the story, learning from Spyro and becoming an important ally. Or a mysterious wizard who has been observing the Dark Days from afar and decides to get involved, either to help or hinder Spyro's progress, adding an element of mystery and unpredictability to the fanfiction.
Cynder could be a key character. She has a connection with Spyro and could play a role in helping Dark Spyro either come to terms with his powers or in fighting against a common enemy.
Crash Bandicoot would be a great addition. His goofy and fearless nature would contrast well with Spyro's more noble and magical persona. He could bring some comical moments to the story while also being a strong ally in battles.
One idea could be exploring Spyro's journey to uncover a long - forgotten power within the Dark Days. Maybe he discovers a hidden cave that holds the key to a new ability that can help him combat the darkness.
Cynder could be a great addition. She has her own powers and a complex backstory that can add depth to the fanfiction. Another character could be Ignitus, as he was an important figure in Spyro's life and can serve as a mentor or source of wisdom. Also, the Hunter could be included. His skills as a tracker and his friendship with Spyro can create interesting interactions in the story.
The main characters are Spyro and Dark Spyro. Spyro is the character we know from the games, with his unique personality and abilities. Dark Spyro is a more complex character. He might not be completely evil but rather a product of some external influence that has made him turn against Spyro. Other characters like the elder dragons or the various creatures in the Spyro universe could also make appearances, but Spyro and Dark Spyro are the ones that drive the main conflict in the fanfiction.
One idea could be Dark Spyro's struggle to control his newfound powers. Maybe he accidentally causes harm to those he cares about and has to find a way to master his abilities to protect them.
Obviously, Spyro himself is a must - include character. He's the main character of the Spyro universe. Elora could also be included. She has her own magic and can interact with humans in interesting ways. Then there's Hunter, who could provide some action - packed scenes when paired with a human character in the fanfiction.
Zelda could be a great addition. She might initially be wary of Dark Link but then come to understand his situation. Navi could also be included. Her insights could help Link and Dark Link communicate better. And Ganon, of course. His presence could add more conflict. He might try to manipulate Dark Link for his own evil purposes.
Spyro's original friends like Cynder could be potential allies. She has a connection with Spyro and might be able to understand his dark side and help him control it.
In a crossover with 'Final Fantasy', Cloud Strife could be added. He is a skilled warrior with a cool sword. He could join Spyro in his adventures and offer his combat skills against powerful enemies. Their different fighting styles, Spyro's magic and flight and Cloud's swordsmanship, would make for an interesting dynamic.