The sprig of green onion that Farfetch’d holds is its sword-like weapon of choice. In the misadventure, “So Near, Yet So Farfetch’d,” a Pokémon thief named Keith uses his rare Farfetch’d to steal other trainer’s Poké Balls. Officer Jenny asks Ash and company to help search for this nefarious criminal. Ash, Misty, Brock and the headache-plagued Psyduck foil Keith’s plans and rescue all of the missing Poké Balls.
Episode 49—”So Near, Yet So Farfetch’d”
