The yellow-headed Galarian Slowpoke has made its Pokémon Go debut, alongside one of its evolutions, Galarian Slowbro.
To evolve into Galarian Slowbro, Galarian Slowpoke needs to be set as your buddy Pokémon. Once it’s set, you’ll need to catch 30 poison-type Pokémon. When you complete those requirements, you’ll need 50 Slowpoke Candy to evolve it.
If you’re having a hard time finding poison-type Pokémon to catch, you can use a Mossy Lure Module at a Poké Stop, which will increase the spawn rates around the stop for bug-, grass,- and poison-type Pokémon.
Slowpoke’s other evolution, Galarian Slowking, is not in Pokémon Go yet, with Niantic noting that “its arrival might be quite...slow.”
All of Slowpoke’s evolutions use Slowpoke Candy, so make sure to save some for Galarian Slowking. (There’s no separate Galarian Slowpoke Candy or anything like that.) While we don’t know what Galarian Slowking’s evolution requirements will be, it’s very likely that it will cost 50 Slowpoke Candy to evolve, since the rest of Slowpoke’s evolutions do as well.