Seething Song

Dwarven Blastminer

{2}{R}, {T}: Destroy target nonbasic land.
Morph {R} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Mountain

Etali, Primal Storm

Whenever Etali attacks, exile the top card of each player's library, then you may cast any number of spells from among those cards without paying their mana costs.

Strip Mine

{T}: Add {C}.
{T}, Sacrifice this land: Destroy target land.

Cleansing Wildfire

Destroy target land. Its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle.
Draw a card.

Dwarven Miner

{2}{R}, {T}: Destroy target nonbasic land.

Rite of Flame

Add {R}{R}, then add {R} for each card named Rite of Flame in each graveyard.

Bust

Boom

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

Boom // Bust

Vessel of Volatility

{1}{R}, Sacrifice this enchantment: Add {R}{R}{R}{R}.

Epicenter

Target player sacrifices a land of their choice.
Threshold — Each player sacrifices all lands they control instead if seven or more cards are in your graveyard.