The Secret Base in Pokémon Brilliant Diamond and Shining Pearl is a place you can create while visiting the Grand Underground. You will have access to this area after unlocking the Digger Drill from the old man who initially gave you the Explorer Kit. The main purpose of these Secret Bases is to place statues there. What do the secret base statues do in Pokémon Brilliant Diamond and Shining Pearl?
These statues are designed to increase the chances of encountering specific Pokémon as you explore the Grand Underground. Each statue has a value that adds to your Grand Underground spawning chances.
For example, the initial evolutions of a Pokémon, such as a Piplup, offer the smallest and increase for each evolution. The statues also represent the secondary types of Pokémon. For Emploeon, Water-types and Steel-types increase the chances of Water-type and Steel-type Pokémon appearing, with Water-types receiving the highest value. We recommend placing multiple statues of the same type in your secret base to increase the chances of specific types of Pokémon appearing in the Grand Underground, especially if you are looking for one. There are also Legendary Pokémon, which offer the maximum increase in the spawn effect of your Secret Base.
You can also find shiny versions of these statues, which are even better than the regular ones. If you have a bright version of a statue, we highly recommend placing these statues rather than the regular ones to give yourself the most significant boost.
You can check the crystal ball in your Secret Base to see the direct bonuses you receive during your Grand Underground adventure.
