The original collectable card game (CCG), where players purchase packs of randomized cards and assemble decks used to compete against others. Created by the Washington-based company Wizards of the Coast, Magic: The Gathering achieved great popularity in the early-to-mid 1990s, and paved the way for other CCGs such as Legend of the Five Rings and Pokemon. Magic: The Gathering still remains popular to this day, although not to the same level as it used to.
Magic: The Gathering definition by Urban Dictionary