To commemorate Pokémon Day 2023, Pikachu with the Mightiest Mark will be appearing in black crystal Tera Raid Battles in Pokémon Scarlet and Violet from Friday, February 24th, 2023, at 00:00 UTC to Monday, February 27th, 2023, at 14:59 UTC.

Catch a Pikachu with the Mightiest Mark!

Pikachu with the Mightiest Mark will be appearing in black crystal Tera Raid Battles to commemorate Pokémon Day! You can join the festivities with Pikachu from Friday, February 24, 2023, at 00:00 UTC to Monday, February 27, 2023, at 14:59 UTC.

The Pikachu appearing during this event has Water as its Tera Type, and its torrent of attacks make it a formidable foe—it even has the Mightiest Mark to prove it!

Celebrate Pokémon day with your friends by teaming up to take down this powerful Tera Pokémon!

This special Pikachu can be caught only once per save data. You can still participate in Tera Raid Battles against this Pikachu to obtain other rewards if you’ve already caught it.

This Pikachu may be featured in future events or become obtainable through other methods.

Event Schedule

Friday, February 24, 2023, at 00:00 UTC to Monday, February 27, 2023, at 14:59 UTC

Featured Pokémon

7-star Tera Raid Battles: Pikachu with the Mightiest Mark

What Is a Tera Raid Battle?

In a Tera Raid Battle, you’ll work together with three other Trainers to defeat a powerful Tera Pokémon before time runs out. The kinds of Pokémon encountered during Tera Raid Battle events will vary. Pokémon encountered in Tera Raid Battles may have a rare Tera type.

Check the Poké Portal for more information about what Pokémon are appearing in Tera Raid Battles.

Information about Tera Raid Battle Events

• To participate in Tera Raid Battle events, please download the latest Poké Portal News by selecting Poké Portal from the X menu, then Mystery Gift, then Check Poké Portal News. You do not need a paid Nintendo Switch Online membership to receive the latest Poké Portal News.
• After completing certain postgame events, you’ll be able to find black Tera Raid crystals. However, players who haven’t completed these events may still participate in these Tera Raid Battles by joining other Trainers in multiplayer.
• A paid Nintendo Switch Online membership (sold separately) is required to participate in Tera Raid Battles with other Trainers online. Terms apply.

Source: https://sv-news.pokemon.co.jp/en/page/44.html