Rancid Earth

Destroy target land.
Threshold — If seven or more cards are in your graveyard, instead destroy that land and Rancid Earth deals 1 damage to each creature and each player.

Stream of Acid

Destroy target land or nonblack creature.

Tectonic Rift

Destroy target land. Creatures without flying can't block this turn.

Stone Rain

Earth Rift

Destroy target land.
Flashback {5}{R}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Melt Terrain

Destroy target land. Melt Terrain deals 2 damage to that land's controller.

Rubble Reading

Volcanic Upheaval

Craterize

Roiling Terrain

Destroy target land, then Roiling Terrain deals damage to that land's controller equal to the number of land cards in that player's graveyard.

Despoil

Destroy target land. Its controller loses 2 life.

Befoul

Destroy target land or nonblack creature. It can't be regenerated.

Flowstone Flood

Buyback—Pay 3 life, Discard a card at random. (You may pay 3 life and discard a card at random in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.)
Destroy target land.

Dwarven Landslide

Kicker—{2}{R}, Sacrifice a land. (You may pay {2}{R} and sacrifice a land in addition to any other costs as you cast this spell.)
Destroy target land. If this spell was kicked, destroy another target land.

Poison the Well

Destroy target land. Poison the Well deals 2 damage to that land's controller.

Molten Rain

Destroy target land. If that land was nonbasic, Molten Rain deals 2 damage to the land's controller.

Suffering

Pain

Pain // Suffering

Bust

Boom

Destroy target land you control and target land you don't control.

Boom // Bust

Seismic Shift

Destroy target land. Up to two target creatures can't block this turn.

Rain of Tears

Lay Waste

Destroy target land.
Cycling {2} ({2}, Discard this card: Draw a card.)

Sinkhole

Magar of the Magic Strings

{1}{B}{R}: Note the name of target instant or sorcery card in your graveyard and put it onto the battlefield face down. It's a 3/3 creature with "Whenever this creature deals combat damage to a player, you may create a copy of the card with the noted name. You may cast the copy without paying its mana cost" and "If this creature would leave the battlefield, exile it instead of putting it anywhere else."

Devastate

Destroy target land. Devastate deals 1 damage to each creature and each player.

Seismic Spike

Destroy the Evidence

Destroy target land. Its controller reveals cards from the top of their library until they reveal a land card, then puts those cards into their graveyard.