You've been training for this day
Trainers, the next Tera Raid Battle Event for Pokémon Scarlet and Violet has started dto roll out worldwide.
The Tandemaus Tera Raid Battle Event is starting now and runs until the end of Feb. 14th, 2023. This event will feature Tandemaus in 1 to 5 Star Raids with various Tera Types, and will offer rewards including Strawberries and Whipped Cream.
If you want even more specific details on this event, you can find a detailed breakdown here.