Equestria has long been accessible through breeches in Time & Space. So it is no surprise when errant magic brings the world of Pokémon to the world of My Little Pony.
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Kenny, formerly a service dog for Saffron City, found himself Mega-Evolving into an ARCANINE / Alicorn hybrid when the breech in Time & Space occurred. He gained additional powers and a desire to learn of how animals in Equestria were treated compared to what he was used to in the world of Pokémon.
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This story was for 'Kenny Twilight Sparkle' and is a fun introduction to how he is close friends with Fluttershy. He is also really into costumes and Fluttershy is more than happy to play along with the Alicorn ARCANINE in getting to understand more about those Pokémon who have sought refuge in her sanctuary.
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