We're still in spoiler season, but I think we might have just seen the card from this set that will see the most play. I will define seeing the most play as the highest percentage appearing on this page: https://mtgtop8.com/topcards?f=ST&meta=52, from decks in the last 2 months, 2 months after the set's release. If mtgtop8 changes such that no such feature is available, I will find a similar source, such as the mtggoldfish staples page.