1/4 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 3 of any individual common, except for basic lands
  • Up to 8 cards in the sideboard, if used

Primordial Format Deck Building Rules v2

2/4 Banlists



  • Box Sets (Deckmaster 2001, Beatdown, Battle Royale)
  • Casual Supplements sets (Explorers of Ixalan or any set containing “Archenemy”, “Planechase” or “Conspiracy” in its name, e.g. “Archenemy: Nicol Bolas”)
  • Commander sets (any set containing “Commander” in its name, e.g. “Commander (2019 Edition)”)
  • Duel Decks sets (any set containing “vs.” in its name, e.g. “Duel Decks: Elves vs. Inventors”)
  • From the Vault sets (any set containing “Signature Spellbook:” or “From The Vault:” in its name, e.g. “From the Vault: Transform”)
  • Ready-to-play Decks sets (Modern Event Deck or Duels of the Planeswalkers Decks or any set containing “Challenger Decks” or “Premium Deck Series:” or “Deck Builder’s Toolkit” or “World Champ Decks” in its name, e.g. “Challenger Decks 2019”)
  • Reprint Sets (Premium Foil Booster, Anthologies, Chronicles / Renaissance and any set containing “Master” in its name, e.g. “Ultimate Masters”)
  • Two-Headed Giant sets (Battlebond)
  • Un-Sets (Unstable, Unhinged and Unglued)
  • Unclassified (Guild Kits)

If a set is not in this list… then it’s legal! For more details, visit the Wizards’ official sets list (make sure you are looking at the english version).

3/4 Additional rules

  • Basic lands:
    • Any of the five non-snow covered basic lands can be played in any set.
  • 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:
  • Sideboard:
    • Your sideboard must only contain cards that have been printed in a non-banned set.
    • Your deck must still be compliant with the Primordial deck-building rules after swapping… (yes, some people do ask).

4/4 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”.

Rules version: 2.1