Deck-building

A Primordial deck must contain at least 40 cards, all cards must come from the same set (reprints are allowed) and:

  • Exactly 2 mythic rare / rare – not more than 1 of any individual mythic rare / rare
  • Exactly 6 uncommon – not more than 2 of any individual uncommon
  • ∞ Common – not more than 4 of any individual common, except for basic lands
  • Up to 8 cards in the sideboard, if used

Additional rules

  • Basic lands:
  • Cards rarity:
    • The rarity of the cards depends on the set of your deck.
    • The rarity of Timeshifted cards depends on their original set (Arena is considered as rare).
  • Cards saying, “a deck can have any number of cards named […]”:
    • Well, as it is written above… a deck can have any number of these cards (no matter their rarity).
  • Cards that explicitly refer to another card from another set:
  • Multiplayer:
    • Primordial is using the free-for-all Commander system for its multiplayer mode. In other words, your deck must still be compliant with the Primordial format deck-building rules (no commander, 1 set, 40 cards minimum, etc.) and your games should look like this:
      • 2-6 players
      • Free-for-all multiplayer format
      • Start with 20 life
      • Take turns in clockwise order
      • Last player standing wins
    • Also, as it used to be stated in the Official Commander Rules: “House rules or ‘fair play’ exceptions are always encouraged if they result in more fun for the local community”.
  • Sideboard:
    • Your sideboard may only contain cards printed in the set of your deck, in any number of copies (e.g.: if you’re playing a Throne of Eldraine deck, it may contain 8 Oko, Thief of Crowns). However, your deck must still be compliant with the Primordial deck-building rules after swapping (2 mythic rare / rare, etc.). This is meant to be for wish players (e.g.: Fae of Wishes // Granted).

Banned cards

Rules version: 3.2