Players of Pokémon Scarlet and Violet can catch a Mewtwo with the Mightiest Mark in black crystal Tera Raid Battles from Friday, September 1st, 2023 to Sunday, September 17th, 2023, at 23:59 UTC.
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Pokémon Scarlet and Violet – 7-star Tera Raid Battles: Mewtwo with the Mightiest Mark