If we left Cranial Ram legal, it would almost certainly be the deck of the tournament, and instead of letting the dynamic format shine with new Modern Horizons 3 cards, it would become warped around Rama card we would likely ban the following week, invalidating the decklists of the tournament
Power Level:6
2015-11-04 If there are additional costs to cast a spell, or if the cost to cast a spell is increased by an effect (such as the one created by Thalia, Guardian of Thraben's ability), apply those increases before applying cost reductions
Necrotic Fumes, Academic Probation, and Containment Breach saw some play alongside Learn cards like Sparring Regimen and Eyetwitch, but there was one pairing that saw a lot of play: Divide by Zero and Mascot Exhibition
When you would pay life for an effect, instead exile that many cards from your library