We had thought that the most commonly used Pokémon would either be Tyranitar for its Sand Stream Ability, which causes a Sandstorm when it enters the battle, or Ludicolo, which can use Rain Dance to change the weather condition to Rain and then regain health each turn with its Rain Dish Ability.

And while these Pokémon are very common across the tournament, the Pokémon most competitors are turning to is Latios.

Latios is a Dragon-type Pokémon, and Dragon types are only weak to Dragon- and Ice-type moves. And with two key Dragon-type moves, Draco Meteor and Dragon Pulse, that get a type-compatibility bonus, this Pokémon always has a strong move for pretty much any Pokémon the opponent brings in.

Yet Dragon-type moves are not as effective against Steel types, which is why we’re seeing a lot of the Pokémon Metagross as a counter.

Metagross can learn some of the strongest Psychic and Steel type moves in the game, like Zen Headbutt and Meteor Mash, which both match Metagross’s types, making them especially effective.

In addition to these two Pokémon, we’ve seen a lot of Hitmontop using Close Combat and Zapdos using Thunder, so in addition to Trainers looking to start the Rain or a Sandstorm, type compatibility seems to be the name of the game.

What strategies and Pokémon will come out on top? We’ll just have to wait and see as the battles continue on until tomorrow.