name: Throes of Chaos
printings: AFC, J21, MB2, MH1, SOC, WHO
text: Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)
  Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)
type: Sorcery