I was going to be cheeky and say Upheaval, but Wonder is just one of those classic cards thats been good the entire life of the format, and Im pleased that a new generation of folks will get to see it
Bane of Progress has that upside when youre facing artifact- or enchantment-heavy decks
As stated in the keynote speech, the base concept of Foundations is to answer the question What if we made a set named Magic: The Gathering,
ED-E, Lonesome Eyebot Ed-E, as long as youre attacking consistently, can easily become a massive one-time refill option for your hand
White is on its way up, receiving incremental support from every recent MTG set, but it still lags behind other colors, with staple draw cards ending up expensive due to the lack of choice