We know that from previous generations, Pokemon such as Mewtwo and Rayquaza are considered 'uber,' that is, they are too powerful to be fairly used in competitive play.
In this thread, we can discuss both which 4th generation Pokemon are considered in this way, and also which Pokemon you personally consider to be 'overpowered.'
In this thread, we can discuss both which 4th generation Pokemon are considered in this way, and also which Pokemon you personally consider to be 'overpowered.'