So, you’ve caught yourself a Galarian Slowpoke, and you’re wondering how you go about making it a Slowbro? Fear not! I’ll be breaking down everything you’ll need to achieve the Slowbro dream and achieve evolutionary success with your Slowpoke in Pokémon Sword and Shield!
First up and most obvious, you’ll need the Expansion Pass.
Once you’ve arrived at the Isle of Armor, you’ll likely already stumble into your first Galarian Slowpoke. To be extra clear, you’ll want to make your way over to the Fields of Honor and run along the beach to find Slowpoke. After you’ve caught your Slowpoke, you’ll need to do some exploring around the Isle of Armor in search of Galarica Twigs.
Source: Destructoid How to evolve Galarian Slowpoke in Pokemon Sword and Shield