Originally introduced in Zendikar Rising last fall, the Modal Double-Faced Card (MDFC) has been one of the most innovative Magic: The Gathering mechanics Wizards of the Coast designed in recent years, and the publisher has already confirmed that more MDFCs are coming in the next two sets, Kaldheim and Strixhaven: School of Mages. Fans are wondering how many more of them will appear in Strixhaven, and now we have an answer thanks to Magic head designer Mark Rosewater.
"It’s closer to Kaldheim," Rosewater confirmed on his Blogatog. "When we moved MDFCs into Zendikar Rusing and Kaldheim, it moved us away from our original plans for Strixhaven which had a higher as-fan of MDFCs."
For reference, Zendikar Rising has 36 (20 uncommmon, 11 rare, 5 mythic), and Kaldheim appears to have 16 MDFCs (11 rare, 5 mythic). It was heavily-speculated that Strixhaven will use MDFCs to include a lot of instants and sorceries without cutting into the creature count, but it looks like the designers have moved away from their original plan.