If it is countered, no copies will be put onto the stack.
But those costly rares are just a fraction of the entire collection, so the remaining bulk cards may be stored in cardboard boxes
Just like in Draft and Sealed, you'll be able to export your Jumpstart deck to your collection and then challenge a friend using this decklist in a Direct Challenge match using the 40-card challenge option.
Think cards like Scrawling Crawler or Nekusar, the Mindrazer, which give people cards but hurt them as they draw
Its very hard to be able to utilize the extra land drops, and a 1/2 for 3 otherwise is just awful
This sphinx is resilient, draws extra cards, and stabilizes the board with a lifelinking flier