Throes of Chaos 150/254 (Modern Horizons)

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.)

NM - $0.70
LP - $1.50
MP - $0.70
HP - $0.70
DMG - $0.70