Players of Pokémon Scarlet and Violet can encounter Flabébé and Litwick in mass outbreak events from Friday, December 8th, 2023 to Thursday, December 21, 2023, at 23:59 UTC. Milcery can also be encountered in mass outbreaks after the release of The Hidden Treasure of Area Zero Part 2: The Indigo Disk on Thursday, December 14th, 2023.

Get Festive with Mass Outbreaks of Pokémon!

It’s Time to Celebrate—and Seek Out Shiny Pokémon! Let the celebration begin! Until Thursday, December 21, 2023, at 23:59 UTC, mass outbreak events featuring different Pokémon will occur around the Paldea region, the land of Kitakami, and the Terarium at Blueberry Academy.

Mass outbreaks of Flabébé are appearing throughout Paldea, and mass outbreaks of Litwick are appearing throughout Kitakami. After the release of The Hidden Treasure of Area Zero Part 2: The Indigo Disk on Thursday, December 14, 2023, mass outbreaks of Milcery will be appearing throughout Blueberry Academy’s Terarium.

It seems Shiny Pokémon are more likely to appear in these special mass outbreaks, so don’t miss your chance to find one!

Locations, Featured Pokémon, and Event Schedule

Paldea: Flabébé
Friday, December 8, 2023, at 00:00 UTC to Thursday, December 21, 2023, at 23:59 UTC

Kitakami: Litwick
Friday, December 8, 2023, at 00:00 UTC to Thursday, December 21, 2023, at 23:59 UTC

Blueberry Academy: Milcery
Begins after the release of The Hidden Treasure of Area Zero Part 2: The Indigo Disk on Thursday, December 14, 2023, and ends Thursday, December 21, 2023, at 23:59 UTC

What Is a Mass Outbreak?

Mass outbreaks are a phenomenon in which many of the same species of Pokémon appear in one location. During limited-time mass outbreak events, certain Pokémon will become more likely to appear.

Information about Mass Outbreak Events

• In order to participate in limited-time mass outbreak events, you need to have downloaded the latest update data and the latest Poké Portal News. You do not need a paid Nintendo Switch Online membership to receive the latest Poké Portal News.
• You can download the latest Poké Portal News by selecting Poké Portal from the X menu, then Mystery Gift, then Check Poké Portal News.

Source: https://sv-news.pokemon.co.jp/en/page/153.html