You live in the Kentuckea region where a lot of cool Pokémon live, you were in the cave of Kentuckea with your Oshop, your Oshop level up and learn the move, dig, then Oshop evolve into Osdig, so you pulled out your Rotom tablet and opened the Pokédex app Rotom Tablet: "Osdig has been registered to your Pokédex, Osdig, the Digging Rabbit Pokémon, a Normal/Ground type, Osdig love to dig, they dig all day looking for gems and resources, Osdig are a great company for miners of the Kentuckea region."