In a mono-color deck, it's impossible to be color screwed (assuming you're not playing an absurd amount of colorless lands for some reason), and in a two-color deck, it's pretty unlikely that you'll get color screwed with a properly built mana base featuring a reasonable number of dual lands and other types of ramp / fixing
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These cards serve valuable utility in Dimir reanimator decks in Legacy, which use blues unmatched stack interaction with blacks hand disruption and Reanimate, which is trivial to set up with pieces like Entomb or Troll of Khazad-dm, or even targeting yourself with Thoughtseize
Flavor-wise, these diverse spells are contained in the Biblioplex's archives in the campus of Strixhaven, and gameplay-wise, these special cards will appear in regular Strixhaven boosters, with one in each regular booster of the set and more in Collector's Boosters