This expansion for Magic: The Gathering takes place at Strixhaven University, the most prestigious magical institute of higher learning on the plane of Arcavios—and in the known multiverse. Strixhaven is divided into five colleges, each representing the two diametrically opposed colors of magic favored by its elder dragon founder: Silverquill (black-white), the college of communications; Prismari (blue-red), college of the arts; Witherbloom (black-green), college of biology; Lorehold (red-white), college of history; and Quandrix (green-blue), college of math. The university is also home to the famous Mystical Archive, a magic library that is said to contain a copy of every spell ever cast. The set contains 275 cards, as well as 63 special Mystical Archive cards that are alternate-art reprints of popular instants and sorceries from Magic's past. It is sold in draft boosters, set boosters, collector boosters, theme boosters, and bundles.