Llanowar Elves

Ancient Tomb

{T}: Add {C}{C}. Ancient Tomb deals 2 damage to you.

Wild Growth

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional {G}.

Thermokarst

Destroy target land. If that land was a snow land, you gain 1 life.

Sandstorm

Sandstorm deals 1 damage to each attacking creature.

Naturalize

Silvos, Rogue Elemental

Trample
{G}: Regenerate Silvos, Rogue Elemental.

Gigapede

Shroud (This creature can't be the target of spells or abilities.)
At the beginning of your upkeep, if Gigapede is in your graveyard, you may discard a card. If you do, return Gigapede to your hand.

Fyndhorn Elves

Plow Under

Put two target lands on top of their owners' libraries.

Sphere of Resistance

Fallow Earth

Put target land on top of its owner's library.

Hystrodon

Trample
Whenever Hystrodon deals combat damage to a player, you may draw a card.
Morph {1}{G}{G} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Rishadan Port

Winter's Grasp

Treetop Village

Treetop Village enters tapped.
{T}: Add {G}.
{1}{G}: Treetop Village becomes a 3/3 green Ape creature with trample until end of turn. It's still a land. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Argothian Wurm

Trample
When Argothian Wurm enters, any player may sacrifice a land. If a player does, put Argothian Wurm on top of its owner's library.

Erratic Portal

{1}, {T}: Return target creature to its owner's hand unless its controller pays {1}.

Serene Heart

Bind

Counter target activated ability. (Mana abilities can't be targeted.)
Draw a card.

Wasteland

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

Barbed Wire

At the beginning of each player's upkeep, Barbed Wire deals 1 damage to that player.
{2}: Prevent the next 1 damage that would be dealt by Barbed Wire this turn.