A tough and battle-ready Tyranitar is waiting for Pokémon League players!

If you are registered as having played at a Pokémon League event during the Castelia Gym Season, you automatically qualify for this Tyranitar. All you have to do to get this Pokémon is go to the Promotions page at the Pokémon Global Link and follow the instructions. The next time you use Game Sync, Tyranitar will be added to your game!
http://www.pokemon.com/us/pokemon-news/op_pgl_claim_tyranitar-2013-03-15/