Cool team :D, but try to switch the move of Tyranitar's Taunt to Earthquake, wouldn't you say? In double battle, Yanmega is a great strategy with Tyranitar's Earthquake, that you could use many times since Yanmega is a Flying-Type, and Tyranitar could attack both of the opponent's Pokemon and Yanmega could join in the attack too to choose which one that would be fainted, doing that again for the prediction could be able to make a total of 3 Pokemon been knock out on the second turn, just to make it a little bit more of finding a strategy for you :).