The shell for this shellfish Pokémon is a bit different, besides serving as a home it also serves as defense and protection. The Anime also shows that this Pokémon can leave its shell or abandon their old one to make a new and bigger one. Cilan has caught one.
Main Article:Cilan's Crustle
A Dwebble appeared in BW011: A Home for Dwebble! making its own home from a rock due to Pikachu and Axew's curiousity when it doesn't have its own rock yet. It was later caught by Cilan due to his worries for his Pansage.
Main Article:Burgh's Dwebble.
Burgh, the Castelia City Gym Leader uses his Dwebble in the first battle. The color of its rock looks different than Cilan's Dwebble. Burgh's Dwebble managed to defeat Ash's Tepig with a close range Rock Wrecker but, it was later defeated by Ash's newly caught Sewaddle.