The Christmas Pokémon Exchange (クリスマスポケモン交換会) will be held on Saturday, December 18th, 2021 at 6:00 p.m.! The Christmas Pokémon Exchange is an online event focusing on Pokémon trades between Pokémon Brilliant Diamond and Shining Pearl and Pokémon Sword and Shield. The event will be broadcast live on the official Pokémon YouTube and other media.

There will be a lot of fun on the day, including Pokémon trades between guests and viewers, Pokémon battles between guests, and gorgeous gifts for viewers! Even if you don't have the game yet, you can still enjoy the content, so be sure to watch!

How to Watch:

YouTube
LINE LIVE

Source: https://www.pokemon.co.jp/info/2021/12/211203_e01.html