Council of Knowledge Curators

Whenever Council of Knowledge Curators enters the battlefield or untaps opponents discard 2 cards
{2}{u}{u}{t}, sacrifice Council of Knowledge Curators choose a subtype, opponents discard all cards with chosen subtype
{2}{b}{b}{t}, opponents lose life equal to the number of cards in their hand, they may discard their hand to avoid this effect
They don't have to burn the books they just remove them-Zack de la Rocha