Oftentimes people will just give out their commons and uncommons at the Prerelease
My guess is that Amulet of Safekeeping is R&Ds attempt to try and answer the question of how to ensure that Modern players can sideboard against multiple strategies at once so that your progression though a large Modern tournament is less matchup dependent
Lastly, you can see how the framing elements are partnered with Teferi's costuming to extend Teferi from the art into the entirety of the card
As such, when we open the box, using the easy-open tab on the bottom, inside is a fair amount of cardboard but with perforations with which to remove circular counters and a deck divider for ease of differentiation in your deck
One of the chasi-est of chase cards in the precons might well be Goldlust Triad, a myriad Dragon that makes treasures on hitting
Stern Scolding Stern Scolding is the one card on this list that will likely hit Modern to some extent but not Commander