There are a lot of Pokemon in Sword & Shield, but the noblest pocket monster is undoubtedly Sirfetch’d. The new evolution of Farfetch’d, Sirfetch’d is a Fighting-Type Pokemon that evolves in a rather unique way. Unlike other Pokemon, Farfetch’d actually evolves by knocking out Pokemon, regardless of how much experience this creature earns in battle. The catch is that Farfetch’d has to score three critical hits in a single battle.
Because of this, we suggest you keep catching Farfetch’d until you grab one with a Leek. There’s a 50% chance your captured Farfetch’d will have one, so make sure to check after you obtain one. This item will drastically increase its critical hit chance, allowing you to, hopefully, score three in a single battle. While it can be in any battel, finding a trainer with multiple Pokemon will give you a much better chance. Look for one with 3 or more, just to be safe.
Once it begins, just keep Farfetch’d alive and strike with your lowest damage ability until you land three critical hits. This takes a bit of luck and time, but if you do manage to hit all three then he will evolve into the bestest bird, Sirfetch’d!
This is the only way to evolve Farfetch’d, so if you want to complete your Pokedex get ready to battle it out with this Pokemon.