Of all the new cards being added to Pokemon TCG Pocket with the upcoming Space-Time Smackdown set, one has the potential to be a meta game-changer.

Pokemon TCG Pocket is a free-to-play mobile version of the popular card-collecting phenomenon, allowing players to open two packs daily for free. Of course, you can head into the shop and spend real-world money to open as many cards as you want,

When you’ve filter through your collection in Pokémon Trading Card Game Pocket, you may notice an option to filter for Pokémon Tool cards. There’s nothing ever there, because Pokémon TCG Pocket doesn’t currently have any Pokémon Tool cards. But that appears to be changing with the Space-Time Expansion announced Thursday.

Here is what you need to know about the trading features for Pokemon Trading Card Game Pocket and how fans feel about it.

New Pokemon TCG expansion A2 Space-Time Smackdown focuses on Generation 4's Diamond and Pearl. Only a handful of cards from among more than 240 were revealed, leading players to predict the meta. Honchkrow,

This means that players actually won't be able to trade cards from the Space-Time Smackdown expansion when it launches, and will instead have to wait for that option. It also means that all the Pokemon TCG Pocket rarest cards can't be traded, so if you wanted somebody's gold Mewtwo ex, you won't get it.

The Space-Time Smackdown cards are coming to Pokémon TCG Pocket before the end of January, adding more than 140 new cards across two booster packs. The Space-Time Smackdown expansion will focus on the Sinnoh region and will feature Dialga and Palkia as the figurehead Pokémon for the two new packs.