Tinder Wall

Defender (This creature can't attack.)
Sacrifice this creature: Add {R}{R}.
{R}, Sacrifice this creature: It deals 2 damage to target creature it's blocking.

Animate Land

Until end of turn, target land becomes a 3/3 creature that's still a land.

Forest

Ankh of Mishra

Whenever a land enters, this artifact deals 2 damage to that land's controller.

Barren Moor

This land enters tapped.
{T}: Add {B}.
Cycling {B} ({B}, Discard this card: Draw a card.)

Splinter

Exile target artifact. Search its controller's graveyard, hand, and library for all cards with the same name as that artifact and exile them. Then that player shuffles.

Winter's Grasp

Myr Landshaper

{T}: Target land becomes an artifact in addition to its other types until end of turn.

Mana Leech

You may choose not to untap this creature during your untap step.
{T}: Tap target land. It doesn't untap during its controller's untap step for as long as this creature remains tapped.

Mole Worms

Strip Mine

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

Terravore

Trample
Terravore's power and toughness are each equal to the number of land cards in all graveyards.

Sol Ring

Tranquil Thicket

This land enters tapped.
{T}: Add {G}.
Cycling {G} ({G}, Discard this card: Draw a card.)

Eradicate

Exile target nonblack creature. Search its controller's graveyard, hand, and library for all cards with the same name as that creature and exile them. Then that player shuffles.

Wild Mongrel

Discard a card: This creature gets +1/+1 and becomes the color of your choice until end of turn.