Why Play This Format? Build decks using your favorite commons from throughout the history of Magic. Accessible, with card choices for deck building readily available. Powerful card combinations that pack a punch! Play Rules/Modifiers Build decks using cards that are readily available! In this Magic format, all cards must have been released at common rarity in a Magic set or product. Common promo cards are only legal if the card meets that qualification. If a common version of a particular card was ever released in a Magic: The Gathering paper product or Magic: The Gathering Online, any version of that card is legal in this format. This includes land cards that were printed with both a common set symbol and the L rarity code. Minimum of 60 cards in the main deck (There is no maximum size for main decks) Up to 15 cards in your sideboard, if used No more than four of any individual card in the main deck and sideboard combined (with the exception of basic lands)