Players can find and catch Regigigas in Pokémon Brilliant Diamond & Shining Pearl, which debuted back in the original Pokémon Diamond & Pearl. The Sinnoh region is full of legendary Pokémon to discover, and many of them have unique methods to unlock. However, before players can get their hands on Regigigas, they first need to get the National Dex.
Players can obtain the National Dex after seeing every Pokémon within the Sinnoh Dex. After this, speak with Professor Rowan at Sandgem Town, and
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