Cthuria, Child of Madness

+2: Each opponent discards a card and puts the top two cards of their library into their graveyard.
-4: Target player puts the top half of their library, rounded up, into their graveyard.
-9: Target player gets an emblem with "Whenever you cast a spell, put the top X cards of your library into your graveyard where X is that spells cmc"