How do you get a gible in pbb?

To obtain a Gible in Pokémon Brilliant Diamond and Shining Pearl (PBB), you need to go to the Wayward Cave, which is located beneath Route 206. You can access the cave by finding the entrance hidden behind a bike path. Inside the cave, Gible can be found in the lower levels, so be sure to explore thoroughly to encounter this Pokémon. Good luck with your search!