You will be able to find more Pokémon as you explore Pokémon Brilliant Diamond and Brilliant Pearl. They are all over the place and many of them have specific requirements that you will need to meet before you can meet them and add them to your collection. For those looking for how to evolve Magneton into Mangezone, there is a specific process you need to follow. Here's what you need to know about Magneton's evolution in Magnezone into Pokémon Brilliant Diamond and Brilliant Pearl.
You can only evolve Magneton into Magnezone if you give Magneton a Thunder Stone. Previously, in the original Pokémon Diamond and Pearl games, you had to evolve Magneton on Mount Coronet. This location had a magnetic field compatible with this Pokémon to reach the next step in its evolution. However, things are much simpler in Pokémon Brilliant Diamond and Brilliant Pearl.
Once Magneton receives a Thunder Stone, it will immediately evolve into Magnezone. You can find Thunder Stones in multiple locations, but you can also find them by digging for fossils in the Grand Underground. We strongly recommend that you search for them in this location due to how many times you can freely dig for artifacts and receive valuables in this location. You can evolve more Magneton into Magnezone by finding different Thunder Stones, giving you an army of Magnezone if you're looking to use a specific one for your Pokémon adventure.