What are rare magic cards?

In Magic: The Gathering, rare cards are cards that appear less often than common or uncommon cards when opening booster packs. Magic cards can be common, uncommon, rare or mythic rare. Commons appear 11 to a pack, uncommons appear three to a pack and rares appear one to a pack.

A card's rarity is not always indicative of its worth, though rare or mythic rare cards are often worth somewhat more than common and uncommon cards because they appear less often. Older cards are often worth more because they are out of print. Additionally, GatheringMagic.com suggests that many new mythic cards are lackluster in worth and in gameplay terms compared to many rare cards.