pokemon trading card game arceus (AR9) - Arceus Age Group Arceus finally appears in Pokémon

If you don't know what Foundations is, it's basically a new set from the folks over at Wizards of the Coast that is filled with staple cards and doesn't rotate out of the Standard format until at least 2029

Protecting Cards : Proxy cards can be used in place of valuable or rare cards during gameplay to prevent wear and tear on the originals

If you want to use your former Standard cards - dating back to Return to Ravnica (2012) - in all their glory, then check out Pioneer

Occasionally you'll have exiled Permanents too, so be sure to designate sections of your play area for both your graveyard and your exile

The last slot generally depends on whether theres a foil card or not