It could be a group of shadowy creatures that have emerged from a long - forgotten part of Spyro's world. They are attracted to the strange energy of the human from another world. Their goal is to drain the human's energy and use it to spread darkness across Spyro's world. They are relentless and difficult to defeat, as they can merge with the shadows and attack from unexpected places, making them a formidable antagonist for the human and Spyro.
Maybe the main antagonist is a sorcerer from a far - off land in Spyro's world. This sorcerer is jealous of the attention the human is getting and the potential power they might bring. So, they start causing chaos and trying to turn the other creatures in Spyro's world against the human and Spyro. They could use illusions and dark spells to make things difficult for our heroes.
One possible plot could be a human from our world accidentally getting transported into Spyro's world. They could start off as confused and scared, but then gradually discover their own unique abilities within this new world. Maybe they have a special connection to the magic there that even Spyro doesn't fully understand, and together they embark on a journey to save Spyro's world from a new, unknown threat.
It could be an evil dragon that preys on Spyro's troubled state. This dragon might try to manipulate Spyro into doing bad things or lead him further astray from finding peace with his troubled soul.
A powerful dragon - mage hybrid could be the main antagonist. This creature could have the ability to control both the dark magic from Spyro's world and the power of the more menacing dragons in HTTYD. It wants to rule both worlds and is using its magic to create chaos and turn the dragons against each other.
Spyro and a scientist could be the main characters. The scientist is studying the strange phenomena that seem to connect the dragon world and the human world. Spyro stumbles upon the scientist's research site and they end up having to rely on each other. The scientist could learn a lot about Spyro's world through Spyro, and Spyro could learn about human intelligence and technology from the scientist.
Kaos could be a great main antagonist. He might see Dark Spyro's power as a tool to finally achieve his evil goals and try to manipulate him.
It could be an ancient evil force that wants to use the Dark Master Son's power for its own dark purposes. This force might see Spyro as an obstacle in its plan to dominate the world.
The main antagonist might be a dark sorcerer. This sorcerer has put a spell on Spyro's mother long ago, trapping her. He doesn't want Spyro to find her because he fears that together they will be strong enough to break his power. He uses his minions to try and stop Spyro during his journey to find his mother.
Obviously, Spyro would be one of the main characters. And then there could be a young human, maybe a teenager, who is brave and curious. This human could be the one to first encounter Spyro and start the whole adventure.
It could be an old enemy of Spyro who has been plotting his downfall for a long time. This antagonist might be another dragon who is jealous of Spyro's popularity and power at the academy. He could manipulate the situation to make Spyro turn evil and then use him as a weapon against the Skylanders.
It could be another ghost who is jealous of Casper's new human form. This ghost might try to sabotage Casper's attempts to fit into the human world, perhaps by causing chaos around him and making humans afraid of him again.