Realm Cards in Nightingale offer a lot of interesting ways to spice up the game, and the most memorable ones tend to do so in ways that are truly inventive or transformative. Although some Realm Cards determine basic attributes of a generated realm like its biome, others have more unusual effects. Minor Realm Cards are where the system tends to shine, making it possible to break the laws of nature or randomize unique attributes to keep exploration fresh even after plenty of gameplay experience.
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