What trainer has the Pokemon Shuckle in Pokemon black 2?

In Pokémon Black 2, Shuckle can be found with the trainer named "Caitlin." She is one of the Elite Four members and uses a Shuckle as part of her team. You can battle her after defeating the Pokémon League. Additionally, Shuckle can also be found in the wild in certain areas like the Abundant Shrine.