Strixhavenis themed around five colleges, each representing a two-color pair. Having a rough idea of them is going to be crucial to your Prerelease experience. Why? Because for the Prerelease, you're going to need to select a college to join!
You'll pick one of the five colleges and receive a special Prerelease Pack geared to that college. That doesn't mean youhaveto play that color combination, but it definitely gives you a leg up in doing so.