Unlike some Pokemon tournaments, this will be an international event. Trainers competing in the event must use Pokemon that were either captured or hatched within the Kalos region, which means that many “move tutor” attacks will be unavailable from Black 2 and White 2.
Trainers can only use one Pokemon of each species and each Pokemon must have a different held item. Despite those restrictions, the tournament allows so called “Legendary Pokémon,” so expect to see such entries as the new Xerneas, Yveltal, and Zygarde. Mewtwo and his new “Mega Evolutions” will be legal as well, as will all the other Mega Evolutions available.
During the battle proper, only three of the six Pokemon on the trainer’s team will be able to enter into each round, adding another level of strategy as trainers try to predict, counter, and outwit each others’ picks and plays.