The new cards are coming to the Pokémon TCG early in 2019.

Taking the stage at the 2018 Pokémon World Championships, The Pokémon Company president Tsunekazu Ishihara introduced a new type of Pokémon card. Called Tag Team Pokémon-GX, the cards will feature two Pokémon of the same type, which join forces and battle together. The powerful new cards will have higher HP and stronger attacks than usual; a player will have to forfeit three Prize cards if theirs is knocked out. The cards will be launched early next year.

Initially, only one Tag Team card was revealed: Pikachu & Zekrom-GX. There will be other Tag Team cards, though the company did not say how many. Eagle eyed fans have noticed, however, that the Pikachu & Zekrom-GX is labelled #33/181, which implies the set will have 181 cards. GX cards were first announced at the Pokémon World Championships in 2016 and debuted in the Sun & Moon expansion for the TCG; there are now over 100 available.