Wild Area Event #11: Pokédex Completion Event .

This is a wild area event held by Sword and Shield. This event raid allows players to obtain the Gigantamax Snorlax that is not obtainable in the base game.
 

This event allowed some of the previously version exclusive Pokémon be found in the opposing version.

To import these files into your save, use PKHeX's block importing function. Our tutorial should guide you through it.
Our first post of this page would contain some data relevant to the importing stage.

There's info and some common questions regarding Wild Area Events here.

To see other Wild Area Events, here.