As a brief mathematical aside (feel free to check my work, Quandrix nerds), here is a short comparison of non-generic/staple overlaps with the appropriate predecessor across each Secrets of Strixhaven Commander deck, not counting Sol Ring or Arcane Signet nor generic/staple lands: 7 cards from Silverquill Influence overlap with Silverquill Statement 10 cards in Witherbloom Pestilence to Witherbloom Witchcraft 10 cards in Prismari Artistry to Prismari Performance 5 cards in Lorehold Spirit to Lorehold Legacies 9 cards in Quandrix Unlimited to Quantum Quandrix Seeing the data laid out as such, it's hard to justify my vibes-based analysis as anything more than a poorly calibrated vibes antenna
Now we can talk about the 2-Player Starter Set
It is also printed in Unlimited with a white border
We knew we wanted to include vampires, werewolves, and zombies
Flash is another vital component of Cast Outs playability, as being able to interact with the Saheeli combo at instant speed is absolutely vital in Standards current form
Depending on your budget, size of your collection, and value of your cards, you can start with a convenient option like a D-Ring binder, and work your way up from there