The ten cards must be traditionally sized Magic cards
Snow is a supertype that first appeared in Magic The Gathering's Ice Age set alongside Coldsnap, Future Sight, Commander 2019, Modern Horizons, and most recently, Kaldheim
You now get access to all your opponents cards exiled with void counters on them
You can probably on average cut that 25% of white things you miss in half, especially if you are an aggressive white player with lots of the cheap white dorks in your poool
It is going to heavily impact your drafting as uncommon creatures like Recruitment Officer need to be a priority, as do artifact creatures
The Innistrad: Midnight Hunt Collector Booster contains 15 Magic: The Gathering cards and 1 traditional foil double-sided token, with a combination of 5 Rares and/or Mythic Rares, 25 Uncommons, 47 Commons, and 1 Land card