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.

Stone Rain

Elvish Spirit Guide

Exile this creature from your hand: Add {G}.

Simian Spirit Guide

Mountain

Bala Ged Sanctuary

Bala Ged Recovery

Return target card from your graveyard to your hand.

Bala Ged Recovery // Bala Ged Sanctuary

Waking the Trolls

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Destroy target land.
II — Put target land card from a graveyard onto the battlefield under your control.
III — Choose target opponent. If they control fewer lands than you, create a number of 4/4 green Troll Warrior creature tokens with trample equal to the difference.

Acidic Slime

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
When this creature enters, destroy target artifact, enchantment, or land.

Frenzied Tilling

Destroy target land. Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Deus of Calamity

Trample
Whenever this creature deals 6 or more damage to an opponent, destroy target land that player controls.

Seismic Mage

{2}{R}, {T}, Discard a card: Destroy target land.

Ice Storm

Mwonvuli Acid-Moss

Destroy target land. Search your library for a Forest card, put that card onto the battlefield tapped, then shuffle.

Forest

Gnottvold Slumbermound

This land enters tapped.
{T}: Add {R}.
{3}{R}{G}{G}, {T}, Sacrifice this land: Destroy target land. Create a 4/4 green Troll Warrior creature token with trample.