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.

The other, more interesting evolution type is different - once Tandemaus reaches level 25, there's a random chance that it will evolve on its own without any input on your end, and without any notification. Considering that Tandemaus is the "Couple" Pokemon, and Maushold is the "Family" Pokemon, the implication is clear; and it means that you may have been confused when your Tandemaus actually evolved, after having shelved it in your Box.

If that's the reason why you clicked on this guide, I hope the information brightens up what might have happened. It's certainly a charming mechanic, and while having a Pokemon evolve without your consent might be annoying - hey, what Tandemaus does in the privacy of its Pokeball is none of our business, eh?