Talk:Magic School, Sephirot/@comment-11372432-20141214111215

I believe the effect is that you can negate a spell cast during your opponent's main phase by discarding a Wizard. And it's once per turn. That's what I heard at least. If that is indeed the case, this card cemented Wizards' place at the top of Magic World (sorry Asmodai) and also makes it clear that set spells are now gonna be a LOT more important for the foreseeable future in many decks.