Tyranitar

As it frequently tops the OU usage lists, it is inconceivable that Tyranitar has not considered taking over the forbidden land of Ubers as well. Indeed, while the bipartisan dictatorship of Groudon and Kyogre persecute other weather effects from coming into play, the sand tyrant stands defiant, ready to introduce sandstorm to the world of Mount Olympus. Its ability, Sand Stream, allows Tyranitar to become an extremely sturdy special tank in the Uber metagame, a tier full of special attackers. It isn't indestructible by any means, however, as Tyranitar sports nasty weaknesses to the ubiquitous Aura Sphere and Earthquake. Overall, Tyranitar is an extremely versatile Pokemon, and every team that dreams of being successful should have an answer to the dinosaur.