Do you get any prizes for completing the regional Dex and National in Pokemon Black White 2?

You don't get any specific prizes for completing the regional or national Pokédex in Pokémon Black and White 2. While the achievement is a significant one for many players, the games don't offer any in-game rewards for accomplishing this feat.

However, completing the Pokédex can unlock some benefits:

* New Pokémon Encounters: After catching a certain number of Pokémon, you might encounter rarer Pokémon in the wild.

* Pride and Accomplishment: Completing the Pokédex is a challenging task, and the sense of accomplishment is often its own reward.

* Full Pokédex Entry: Having a complete Pokédex allows you to view information on all available Pokémon in the game.

While there are no specific prizes, the satisfaction of completing the Pokédex and the benefits mentioned above are valuable rewards in themselves!