Mountain

Swamp

{G}, {T}: You may put a basic land card from your hand onto the battlefield.

When Harvest Wurm enters, sacrifice it unless you return a basic land card from your graveyard to your hand.

As an additional cost to cast this spell, sacrifice a land.
Destroy target land.

As an additional cost to cast this spell, discard X land cards.
Destroy X target lands.

Lightning Bolt deals 3 damage to any target.

{R}, {T}, Exile two cards from your graveyard: Grim Lavamancer deals 2 damage to any target.

When Fallow Wurm enters, sacrifice it unless you discard a land card.

Defender
Put a -0/-1 counter on Wall of Roots: Add {G}. Activate only once each turn.

{T}, Pay 1 life, Sacrifice Bloodstained Mire: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle.

{T}, Pay 1 life, Sacrifice Wooded Foothills: Search your library for a Mountain or Forest card, put it onto the battlefield, then shuffle.