Have

Wild Mongrel

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

Mulch

Reveal the top four cards of your library. Put all land cards revealed this way into your hand and the rest into your graveyard.

Armageddon

Centaur Garden

{T}: Add {G}. This land deals 1 damage to you.
Threshold — {G}, {T}, Sacrifice this land: Target creature gets +3/+3 until end of turn. Activate only if seven or more cards are in your graveyard.

Plains

Ray of Revelation

Destroy target enchantment.
Flashback {G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Birds of Paradise

Nimble Mongoose

Shroud (This creature can't be the target of spells or abilities.)
Threshold — This creature gets +2/+2 as long as seven or more cards are in your graveyard.

Anurid Brushhopper

Discard two cards: Exile this creature. Return it to the battlefield under its owner's control at the beginning of the next end step.

Call of the Herd

Create a 3/3 green Elephant creature token.
Flashback {3}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Riftstone Portal

{T}: Add {C}.
As long as this card is in your graveyard, lands you control have "{T}: Add {G} or {W}."

Warmth

Whenever an opponent casts a red spell, you gain 2 life.

Urza's Bauble

{T}, Sacrifice this artifact: Look at a card at random in target player's hand. You draw a card at the beginning of the next turn's upkeep.

Forest

Tormod's Crypt

{T}, Sacrifice this artifact: Exile target player's graveyard.

Cataclysm

Each player chooses from among the permanents they control an artifact, a creature, an enchantment, and a land, then sacrifices the rest.

Exalted Angel

Flying
Whenever this creature deals damage, you gain that much life.
Morph {2}{W}{W} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Gemstone Mine

This land enters with three mining counters on it.
{T}, Remove a mining counter from this land: Add one mana of any color. If there are no mining counters on this land, sacrifice it.

Krosan Reclamation

Target player shuffles up to two target cards from their graveyard into their library.
Flashback {1}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Secluded Steppe

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

Hypochondria

{W}, Discard a card: Prevent the next 3 damage that would be dealt to any target this turn.
{W}, Sacrifice this enchantment: Prevent the next 3 damage that would be dealt to any target this turn.

Windswept Heath

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

Chromatic Sphere

{1}, {T}, Sacrifice this artifact: Add one mana of any color. Draw a card.

Wasteland

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

Aura Shards

Whenever a creature you control enters, you may destroy target artifact or enchantment.

Werebear

{T}: Add {G}.
Threshold — This creature gets +3/+3 as long as seven or more cards are in your graveyard.

Nantuko Monastery

{T}: Add {C}.
Threshold — {G}{W}: This land becomes a 4/4 green and white Insect Monk creature with first strike until end of turn. It's still a land. Activate only if seven or more cards are in your graveyard.

Armadillo Cloak

Enchant creature
Enchanted creature gets +2/+2 and has trample.
Whenever enchanted creature deals damage, you gain that much life.

Mystic Enforcer

Protection from black
Threshold — As long as seven or more cards are in your graveyard, this creature gets +3/+3 and has flying.

Crop Rotation

As an additional cost to cast this spell, sacrifice a land.
Search your library for a land card, put that card onto the battlefield, then shuffle.

Zuran Orb

Humble

Until end of turn, target creature loses all abilities and has base power and toughness 0/1.

Bind

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

Swords to Plowshares

Exile target creature. Its controller gains life equal to its power.

Brawn

Trample
As long as this card is in your graveyard and you control a Forest, creatures you control have trample.

Naturalize

Terravore

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

Tranquil Thicket

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

Sungrass Egg

{2}, {T}, Sacrifice this artifact: Add {G}{W}. Draw a card.

Treetop Village

This land enters tapped.
{T}: Add {G}.
{1}{G}: This land 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.)