Wild Area Event #21: Sea Pokémon Invasion .

This is a Wild Area event held by Sword and Shield. It features some water types, with the theme being Sea Pokémon Invasion.
It also has a Guaranteed Shiny Wailord, as part of the 5 star roster.
One can find a Gigantamax Kingler if they are lucky.

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.