How to evolve Tandemaus into Maushold in Pokemon Scarlet & Violet
While Pokemon Scarlet and Pokemon Violet are home to plenty of fresh and exciting new Pokemon, some of the most fascinating would have to be Tandemaus and its evolution Maushold - mostly due to the unique circumstances around its evolution. How does it evolve? We're hear to help you understand exactly what's going on and to maybe answer why yours might have evolved without your input.
Where to find Tandemaus in Pokemon Scarlet and Pokemon Violet
Tandemaus is a relatively rare spawn at a number of locations in Pokemon Scarlet & Violet; it's still easy enough to find one when you take the time to look, but you'll have the best luck searching at the above-marked locations. Given enough time you'll be able to find one (or, a couple?) to catch.
How does Tandemaus evolve into Maushold?
This is where things get a little bit tricky; while you can evolve a Tandemaus the normal method, by leveling it up past level 25 - there's a catch. It won't evolve this way if you simply level it up outside of battle with candies. In order for it to evolve normally you'll need to have it participate in battle and level up past 25 actively. Following the battle it took part in you'll receive the standard evolution scene, and shortly your Tandemaus will have become a Maushold.
Alternatively, players can always catch a pre-evolved Maushold from Tera Raids. Previously there was a rumor that Tandemaus could evolve on its own, even while it was stored in a Pokemon Box, but it seems far more likely that such reports were yet another example of Pokemon Scarlet & Violet's glitchy nature. Either way - enjoy your new Maushold!