Pokemon Go Naming Hack
This might be a easter egg or something very cool by Pokemon Go.
If you name your Eevee either ‘Pyro’, ‘Sparky’, or ‘Rainer’, it will evolve into a Flareon, a Jolteon, or a Vaporeon respectively.
And while this might seem random or silly on the surface, it’s actually a pretty neat throwback to the original Pokémon anime. In an episode titled “The Battling Eevee Brothers”, Ash met three brothers who were named ‘Rainer’, ‘Sparky’, and ‘Pyro’, and can you guess what Pokémon each of them had? Yep, exactly.