Common

Common is one of the four rarities of Magic cards. Cards that are of the common rarity are often referred to as "commons." 
==Description==
Commons are the most abundant cards and are considered to have the highest card impact in Limited play as a result. They have been identified by a black-filled expansion symbol since the Exodus expansion, except in the Coldsnap and Dominaria expansions where it was denoted by a white symbol. In sets printed before Exodus rarity was not denoted on cards.
===Appearance in boosters===
Regular 15-card booster packs (later known as Draft Boosters) usually contained 11 commons. Some of the earliest expansions; including Arabian Nights, Antiquities, The Dark, Fallen Empires, and Homelands; were packaged in 8-card booster packs that contained six commons. The Alliances and Chronicles expansions were sold in 12-card booster packs that contained 9 commons.
When Play Boosters were introduced in 2024, the way sets were designed for limited needs to be modified. At the highest level, the number of cards per pack was reduced from 15 to 14, and the number of common cards per pack from 10 to 7. To compensate, the number of common cards in a set was reduced to 81, from 101, to keep the frequency of seeing any one individual common at approximately the same rate. To balance the frequency of commons with that of uncommons, the number of uncommon cards in a set was increased to 100 (from 80).
===Different kinds of commons===
Expansions through Alliances, excluding Ice Age, had some common and uncommon cards that were more prevalent than others. This was the result of some cards appearing more often than others on the printer's sheet of uncut cards. For example, <c>Headless Horseman</c> is a "C1" common, and <c>Ghosts of the Damned</c> is a "C2" common. This code represents the number of times the card appears on the common printer's sheet of uncut cards, making "C2" commons twice as abundant as "C1" commons.
==New World Order==
New World Order refers to R&D's movement towards putting less complexity in the common rarity slot. The concept was introduced in 2008. 
==Pauper format==
The Pauper format is restricted to common cards. It developed as a Magic Online-specific format, but gained official tabletop support in June 2019.
==Trivia==
*Common cards from Fallen Empires and Alliances featured variations with alternate art.
*Mark Rosewater used to say “If your theme’s not at common, it’s not your theme”. This came from a time where rarity was the only tool to control as-fan. With modern collating technology to do things like a guaranteed card per booster pack, there are now other ways to guarantee the theme is recognizable with just a few packs opened.
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