The official Pokémon website has announced that a new gameplay mechanic is coming to the Pokémon Trading Card Game called Pokémon VSTAR. Full details will be announced at a later time.

Pokémon VSTAR Are Coming to the Pokémon TCG

Take a sneak peek at the upcoming Arceus VSTAR and a new mechanic for the Pokémon Trading Card Game.

An exciting new gameplay mechanic is coming to the Pokémon Trading Card Game. This teaser video gives an early look at Arceus VSTAR, one of the first Pokémon VSTAR. How will these new cards affect your battle strategy? Stay tuned for more details about how you can use the power of Pokémon VSTAR to take on your opponents.

Source: https://www.pokemon.com/us/pokemon-news/pokemon-vstar-are-coming-to-the-pokemon-tcg/

YouTube Clip - The Pokémon TCG Introduces Pokémon VSTAR

Source: https://www.youtube.com/watch?v=fXnZ7M851Qk