You can use as many Pokémon Tool cards as you want per turn, but you can only use one Tool card per Pokémon. So if you attach a Rocky Helmet on a certain Pokémon, you can’t stack another card, like another Rocky Helmet or a Lum Berry on top of it. Once your Pokémon loses HP and is sent to the discard pile, so too will the Tool card.

In this guide, we’ve listed all cards — and their inclusion rates — in Pokemon TCG Pocket’s Space-Time Smackdown set.

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.