Catch a duck with green onions, then cook to make it full of intimacy, and then find an npc with more than three elves to fight. You can fight with a duck with green onions once, and then it will evolve.

Pokémon sword shield green onion duck evolution raiders:

1. First, you need to catch a green onion duck, then you need to bring props green onion, then you need to cook to make the intimacy full, and finally, you can find an npc with more than three elves to fight, and you can fight with the green onion duck once, and then you will evolve.

2. There is also a saying that it is easy to trigger crit by playing with that frenzied skill in battle, so that three battles with npc will evolve.