Question: how does eevee evolve in sword and shield?
Answer: Level up Eevee until it's at least level 15 and then use a Water Stone. Level up Eevee until it's at least level 15 and then use a Thunder Stone. ... Teach Eevee a Fairy-type move and then raise it's friendship level by playing with it and feeding it. Once friendship is high enough, it'll evolve.