Players of Pokémon Scarlet and Violet can prepare to battle Mewtwo by participating in 5-star Tera Raid Battles against Scizor, Blissey and Hydreigon.

Lead-Up to a Mighty Mewtwo Showdown: Prepare the Offense!

Turn Strong Foes into Powerful Allies! ​To prepare for the appearance of Mewtwo with the Mightiest Mark, additional Tera Raid Battle events will be held, allowing you to easily get ahold of stat-boosting items, TMs, Exp. Candies, and Tera Shards!

From Wednesday, August 9, 2023, at 00:00 UTC to Thursday, August 17, 2023, at 23:59 UTC—then again from Friday, September 1, 2023, at 00:00 UTC to Sunday, September 17, 2023, at 23:59 UTC—Scizor, Blissey, and Hydreigon will be appearing more frequently in Tera Raid Battles. These Pokémon will have various Tera Types, so prepare wisely before challenging them! Exp. Candies, and Tera Shards!

Event Schedule

Wednesday, August 9, 2023, at 00:00 UTC to Thursday, August 17, 2023, at 23:59 UTC
Friday, September 1, 2023, at 00:00 UTC to Sunday, September 17, 2023, at 23:59 UTC

Featured Pokémon

5-star Tera Raid Battles: Scizor, Blissey, Hydreigon

Rewards

During this event, the following items will be easier to obtain from Tera Raid Battles with the featured Pokémon listed below.

Scizor, Hydreigon
• Protein
• Calcium
• Carbos
• TM088 (Swords Dance)
• TM100 (Dragon Dance)
• TM129 (Calm Mind)
• TM140 (Nasty Plot)

Blissey
• Tera Shards
• Exp. Candies

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.

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.
• 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/120.html