No doubt losing Rage would hurt Mono Red especially, but Izzet Prowess doesn't need this spell as badly and its massive overrepresentation at the weekend indicates that this is the deck Wizards should be targeting the hardest
The other two - Mickey Mouse, Friendly Face and Elsa, Gloves Off - will be included in Rise of the Floodborn when it releases on November 17th
With these Enchanted cards plus the standard and foil variants of the others, there are a total of 420 available cards for The First Chapter, not including the non-playable oversized foils included in some gift sets
K'rrik, Son of Yawgmoth is the most popular mono-black commander, and its one of the strongest
While it costs a lot, it can be absolutely worth it
Our card quality is just so much higher going into the late-game, those extra draws for them usually aren't enough to get them back in it