Well, perhaps the MLP is on an adventure in a forbidden forest. There, it encounters a strange magical energy source. As it gets closer, the energy seeps into it and begins the transformation into a dragon. Now as a dragon, it must find a way to reverse the process if it wants to return to its normal pony life. Along the way, it meets other mythical creatures who either help or hinder its journey.
A good plot could involve a dark force threatening the pony world. The MLP, in an act of desperation to save its home, makes a deal with a powerful but somewhat mischievous wizard. The wizard's spell turns the MLP into a dragon. As a dragon, it has the strength and abilities to fight the dark force. But it also has to deal with the fact that it's no longer the pony it once was and how its pony friends will accept it in this new form.
One possible plot could be that the MLP discovers a mysterious ancient spell. When accidentally casting it, it starts to transform into a dragon. At first, it's scared but then realizes it has new powers like flying and breathing fire. It has to learn to control these powers while also facing the reactions of its pony friends, some of whom are afraid while others are curious.
Well, perhaps it could be about a powerful human wizard who accidentally casts a spell on the MLP characters and turns them into babies. Then the story might focus on how the other ponies in Equestria have to take care of these baby versions and try to find a way to reverse the spell.
Well, one possible plot could be that a magical spell gone wrong turns a My Little Pony into a dragon. Then the pony - now a dragon - has to learn to control its new powers. It could face challenges like being feared by other ponies or not being able to fit into its old home. Maybe it goes on a journey to find a way to turn back, meeting new friends along the way who help it accept its new form.
Well, perhaps he could use his new dragon form to fight against Voldemort in a very unexpected way. He might be able to breathe fire on the Death Eaters and protect Hogwarts more effectively.
Well, it might be that in a magical realm, the dragon, for some reason like disobeying the magic laws, is magically transformed into a doll. A young girl then takes the doll in and starts to notice strange things. As she delves deeper, she discovers the truth about the dragon and tries to help it regain its true form. There could be all sorts of magical creatures and challenges along the way.
At first, the MLP - turned - dragon might struggle with its identity. It was a pony with certain values and behaviors, but as a dragon, it has new instincts. It might be tempted to act more aggressively like a typical dragon. However, as it interacts with its old pony friends and the pony world, it tries to retain some of its old self. It could grow in empathy as it realizes how its transformation affects those around it, leading to a more complex and nuanced character.
Well, perhaps Spyro could find himself in Equestria and team up with Twilight Sparkle to save both their worlds from a common threat. Maybe a dark magic user is trying to drain the magic from both Spyro's world and Equestria, and they have to combine their unique skills to stop it.
Well, perhaps the TF2 characters are on a mission and end up in the land of Equestria. The TF2 mercenaries could be really surprised by the colorful and magical world. They might try to use their combat skills to help the ponies against some new threat that has emerged in Equestria, like a powerful dark magic creature. And in the process, they learn about friendship and harmony from the ponies.
Maybe the Mushroom Kingdom is in trouble. A strange magical force is draining all the power - ups. Mario discovers that this force is linked to Equestria. He travels there and meets Rarity. Rarity is impressed by Mario's unique style and decides to help him. They find out that a corrupted magic crystal in Equestria is causing the problem. So they have to find a way to purify the crystal. Along the way, they face many challenges, like dealing with jealous unicorns who don't want an outsider like Mario interfering in their world.
Maybe the Avengers are shrunk down to the size of ponies and end up in Equestria. They have to adapt to the new world and its rules. Iron Man could try to build new tech using Equestrian resources, and Captain America could use his leadership skills to form an alliance with the ponies against a common threat, like a dark magic - based enemy that wants to take over both worlds.
One possible plot could be a person suddenly wakes up in the Pokemon world as their favorite Pokemon. They then have to figure out how to survive in this new world, make friends with other Pokemon, and avoid being caught by trainers. Maybe they also discover they have some special abilities that are unique to them even among Pokemon.