Theme Boosters Every game is a new campaign in the Adventures in the Forgotten Realms Theme Boosters, with 35 cards for your favorite type of deck, and at least one Rare or Mythic Rare
Having a release valve for powerful cards in older formats that try to lock you out of the game is extremely useful
Desynchronization has a splashy enough effect to potentially see Modern play in the sideboard of a deck like Affinity, but it is, once again, going to be very meta-dependent
Sometimes its just a simple reprint, but other times its a rare or special variant that can be really valuable and highly collectible
That said, there are likely much more efficient ways to go infinite in formats where you want this, like Commander
they know enough Magic to have an idea of the deck theyre excited to play, but not enough to tune it for the right power level