Question: can farfetch'd evolve in shield?
Answer: Pokémon Sword and Shield introduced a Galarian form for Farfetch'd that evolves into the very intimidating Sirfetch'd. However, you can only get these from Pokémon Sword. If you have Shield, you'll have to get one via trade. To catch the fighting-type Galarian Farfetch'd, you'll have to find one on Route 5.