The next Tera Raid event has been announced for Pokémon Scarlet and Violet. Serperior will be challengeable in 7 star Tera Raids for two weekends back to back Friday September 20th to Sunday 22nd and Friday 27th to Sunday 29th. Serperior caught after the raids will be level 100 and have the Mightiest Mark. Only one Serperior from this event can be caught per save file.
Additionally, Chansey will appear more often in 5 star Tera Raids from September 27th 09:00 am to September 30th 08:59 am. Chansey will boast a variety of different Tera types and the raids will rewards more Tera shards and XP candy that usual.