Munna

Munna (ムンナ Munna) is a type Pokémon introduced in Generation V. It was once referenced to in old Generation 1 games: Red, Blue, Green, and Yellow. It has the abilities Forewarn and Synchronize. It can learn a new attack called Telekinesis which oddly makes its opponent float in the air(i.e. swap their original ability for Levitateor add Levitate as their second ability) This move could be helpful in a double battle where you could use it on your partner to make them immune to Ground-type attacks.

Trivia

 * After defeating a Jr. Trainer outside the Rock Tunnel, she says "The POKEMON here are so chunky! There should be a pink one with a floral pattern", which shows that Nintendo either used that to base this pokemon's look on or Nintendo already had the fifth Generation planned out. However, this could have just been a coincidence.
 * It is similar in appearance to a guinea pig or a lemming. It is probably the cutest Generation V Pokemon.