Twilight sparkle get trap in the world of Pokémon in the unova league
only way to to get back is to become a Pokémon trainer , get 8 Badge, beat the elite 4 and champion as she travel with her new friend Lucia, she see many thing, Pokémon, unova league, people look like her pony friends and team plasma there some much to take but when her new friends she get it done

note
1 going to all most base of pokemon black and white
2 has new pokemon and some old some of them from Black 2 & White 2 Pokedex
3 as some love parts
4 this is after the movie before season 4

I try my best on this so hope you like it