Some kind of payoff cards like Felidar Sovereign or Angelic Accord are important
These abilities are very relevant, especially in Commander gameplay, where the game designers want to incentivize creatures attacking each turn and dealing combat damage
Even if only packs with guaranteed serialized hits remained, you still need buyers for those serialized cards
A Reddit post emerged very quickly, exclaiming that The Ozolith, one of the best-known +1/+1 counter support cards that is not being reprinted, will surge in price
Seek Card Advantage / Draw Engines : A hand with [[Ad Nauseam]], [[Necropotence]], or early Korvold potential can turn into an explosive advantage quickly
An artifact creature seemed the most flavorful option for a colorless creature on Ravnica