Sly Cooper would be a great addition. Sly's sneaky, thieving skills could add an element of stealth to a Spyro crossover. He could help Spyro steal back a precious artifact that has been stolen by their common enemy, using his lock - picking and acrobatic skills.
Spyro himself is a must - include, of course. Then there's Cynder, his friend and often partner in adventures. Eruptor can also add a lot of fun with his fiery nature. Stealth Elf is great for sneaky missions. And don't forget Gill Grunt, he can bring in some underwater elements to the story.
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.
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.
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.
One idea could be a crossover with Crash Bandicoot. Spyro could find himself in Crash's world, facing the same villains Crash does. They could team up to defeat Dr. Neo Cortex who has some evil plan involving both their worlds. This would bring a lot of action and humor as the two very different characters interact.
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.
There are several Spyro the Dragon and Cynder fanfictions out there. 'Spyro and Cynder: The Lost Kingdom' is quite interesting as it takes them on a journey to find a lost dragon kingdom. It has a great mix of action, mystery and the development of their relationship. Also, 'A New Beginning for Spyro and Cynder' is a heart - warming story that gives a fresh start to their story, full of hope and new challenges for the two characters.
Well, if you're doing a crossover with 'Pokémon', Ash Ketchum would be a great addition. He could help the Rugrats understand the world of Pokémon and they could go on a Pokémon - hunting adventure together. Another good character for a crossover, say with 'Digimon', would be Tai Kamiya. He could show the Rugrats how to interact with Digimon. And for a crossover with 'Ben 10', Ben Tennyson could be included. He could use his alien forms to protect the Rugrats in dangerous situations.
Vegeta would be a great addition. His long - standing rivalry with both Goku and Frieza adds a lot of drama. Also, Beerus, the God of Destruction. His power level and unpredictable nature would shake things up in a story with Goku and Frieza. And Bulma could be included for her technological expertise, which could be useful in creating devices to counter Frieza's advanced technology.
A cunning thief could be an interesting character. They might be tempted to steal a precious item from the Everlasting Dragon or use its presence to their advantage in the underworld of the crossover world. They could add an element of mystery and mischief to the story.