Foundations is aimed at Standard
This is the step most people skip, which is why they have gorgeous Zombie tokens and then use a penny for one random Clue. The Token Package Worksheet For each token your deck can make, write down: Name (Zombie, Treasure, Clue, Copy of a creature, etc.) Type line (Creature, Artifact, Enchantment, Aura Role, and so on) Power/toughness (if it is a creature) Rules text (especially for predefined tokens like Treasure and Clue) Quantity pattern One at a time Makes a pile Goes wide suddenly Tracking needs Needs to tap Gains counters a lot Transforms Copies other creatures Then do the same for emblems: Source planeswalker Full emblem text Anything you always forget (which is usually the important part) Dont forget the predefined token trap A bunch of tokens in MTG have defined rules text baked into the rules (Treasure, Food, Clue, Blood, Powerstone, and more)

Then exile it.) Sorcery Sorcery (CTRL to add secondary) Sideboard Gemstone Caverns If this card is in your opening hand and you're not the starting player, you may begin the game with Gemstone Caverns on the battlefield with a luck counter on it
It cares about the yard, like previous Grist, and flips pretty easily
This is because, alongside Elite Spellbinders ability to make one of your opponents cards more expensive, you also get to have a peek into their hand
For example: "Every 10-card pack gets 6 commons, 3 uncommons, and 1 rare slot