Quote from Magikeeper »Mr. Fu, your leaving of MTGnews' humor forum killed it. KILLLED IT!
Quote from RUBRDUX »YUO HEARNIN ME BOY
Quote from Mr. FuSo... if it's my opponent's main phase (when they could cast a sorcery) and they cast something while I have Teferi + Knowledge Pool out, the spell they pulled from Knowledge Pool's exiled cards wouldn't resolve, even though Teferi says its a legal time for them to cast something?
Quote from HoodooDo note that the Pool+Teferi only stops your opponents from casting spells from their HANDS. If they cast a spell from their library, for example, the Pool won't trigger. The same is true of spells cast from the graveyard. It would also be true of cards cast from Exile, but Teferi shuts Suspend down pretty hard.