Cavern of Souls

As Cavern of Souls enters the battlefield, choose a creature type. {T}: Add {1} to your mana pool. {T}: Add one mana of any color to your mana pool. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.

Courser of Kruphix

Play with the top card of your library revealed. You may play the top card of your library if it's a land card. Whenever a land enters the battlefield under your control, you gain 1 life.

Untaidake, the Cloud Keeper

Untaidake, the Cloud Keeper comes into play tapped. {T}, Pay 2 life: Add {2} to your mana pool. Spend this mana only to play legendary spells.

Time of Need

Search your library for a legendary creature card, reveal it, and put it into your hand. Then shuffle your library.

Okina, Temple to the Grandfathers

{T}: Add {G} to your mana pool. {G}, {T}: Target legendary creature gets +1/+1 until end of turn.

Azusa, Lost but Seeking

You may play two additional lands on each of your turns.

Dark Depths

Dark Depths comes into play with ten ice counters on it. {3}: Remove an ice counter from Dark Depths. When Dark Depths has no ice counters on it, sacrifice it. If you do, put an indestructible legendary 20/20 black Avatar creature token with flying named Marit Lage into play.

Mouth of Ronom

{T}: Add {1} to your mana pool. {4}{S}, {T}, Sacrifice Mouth of Ronom: Mouth of Ronom deals 4 damage to target creature. ({S} can be paid with one mana from a snow permanent.)

Homeward Path

{T}: Add {1} to your mana pool. {T}: Each player gains control of all creatures he or she owns.

Myriad Landscape

Myriad Landscape enters the battlefield tapped. {T}: Add {1} to your mana pool. {2}, {T}, Sacrifice Myriad Landscape: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle your library.

Haunted Fengraf

{T}: Add {1} to your mana pool. {3}, {T}, Sacrifice Haunted Fengraf: Return a creature card at random from your graveyard to your hand.

Utopia Sprawl

Enchant Forest As Utopia Sprawl comes into play, choose a color. Whenever enchanted Forest is tapped for mana, its controller adds one mana of the chosen color to his or her mana pool.

Ugin, the Spirit Dragon

+2: Ugin, the Spirit Dragon deals 3 damage to target creature or player. -X: Exile each permanent with converted mana cost X or less that's one or more colors. -10: You gain 7 life, draw seven cards, then put up to seven permanent cards from your hand onto the battlefield.

Sundering Titan

When Sundering Titan enters the battlefield or leaves the battlefield, choose a land of each basic land type, then destroy those lands.

Dryad Arbor

(Dryad Arbor isn't a spell, it's affected by summoning sickness, and it has "{T}: Add {G} to your mana pool.") Dryad Arbor is green.

Thespian's Stage

{T}: Add {1} to your mana pool. {2}, {T}: Thespian's Stage becomes a copy of target land and gains this ability.

Woodland Bellower

When Woodland Bellower enters the battlefield, you may search your library for a nonlegendary green creature card with converted mana cost 3 or less, put it onto the battlefield, then shuffle your library.

Hickory Woodlot

Hickory Woodlot comes into play tapped with two depletion counters on it. {T}, Remove a depletion counter from Hickory Woodlot: Add two green mana to your mana pool. If there are no depletion counters on Hickory Woodlot, sacrifice it.

Rishadan Port

{T}: Add one colorless mana to your mana pool. {1}, {T}: Tap target land.

Hall of Gemstone

During each player's upkeep, that player chooses a color. Until end of turn, each mana-producing land produces mana of the chosen color instead of its normal color.

Oblivion Stone

{4}, {T}: Put a fate counter on target permanent. {5}, {T}, Sacrifice Oblivion Stone: Destroy each nonland permanent without a fate counter on it, then remove all fate counters from all permanents.

Green Sun's Zenith

Search your library for a green creature card with converted mana cost X or less, put it onto the battlefield, then shuffle your library. Shuffle Green Sun's Zenith into its owner's library.

Summoner's Pact

Search your library for a green creature card, reveal it, and put it into your hand. Then shuffle your library. At the beginning of your next upkeep, pay {2}{G}{G}. If you don't, you lose the game.

Tooth and Nail

Choose one — Search your library for up to two creature cards, reveal them, put them into your hand, then shuffle your library; or put up to two creature cards from your hand onto the battlefield. Entwine {2} (Choose both if you pay the entwine cost.)

Karn Liberated

+4: Target player exiles a card from his or her hand. -3: Exile target permanent. -14: Restart the game, leaving in exile all non-Aura permanent cards exiled with Karn Liberated. Then put those cards onto the battlefield under your control.

Petrified Field

{T}: Add one colorless mana to your mana pool. {T}, Sacrifice Petrified Field: Return target land card from your graveyard to your hand.

Tranquil Thicket

Tranquil Thicket comes into play tapped. {T}: Add {G} to your mana pool. Cycling {G} ({G}, Discard this card from your hand: Draw a card.)

Urborg, Tomb of Yawgmoth

Each land is a Swamp in addition to its other land types.

Harmonize

Primeval Titan

Trample Whenever Primeval Titan enters the battlefield or attacks, you may search your library for up to two land cards, put them onto the battlefield tapped, then shuffle your library.

Life from the Loam

Return up to three target land cards from your graveyard to your hand. Dredge 3 (If you would draw a card, instead you may put exactly three cards from the top of your library into your graveyard. If you do, return this card from your graveyard to your hand. Otherwise, draw a card.)

Mishra's Factory

{T}: Add one colorless mana to your mana pool. {1}: Mishra's Factory becomes an Assembly Worker, a 2/2 artifact creature, until end of turn. Assembly Worker still counts as a land but cannot be tapped for mana the turn it comes into play. {T}: Target Assembly Worker gets +1/+1 until end of turn.

All Is Dust

Each player sacrifices all colored permanents he or she controls.

Ancient Stirrings

Look at the top five cards of your library. You may reveal a colorless card from among them and put it into your hand. Then put the rest on the bottom of your library in any order. (Cards with no colored mana in their mana costs are colorless. Lands are also colorless.)

Realms Uncharted

Search your library for four land cards with different names and reveal them. An opponent chooses two of those cards. Put the chosen cards into your graveyard and the rest into your hand. Then shuffle your library.

Eldrazi Temple

{T}: Add {1} to your mana pool. {T}: Add {2} to your mana pool. Spend this mana only to cast colorless Eldrazi spells or activate abilities of colorless Eldrazi.

Miren, the Moaning Well

{T}: Add {1} to your mana pool. {3}, {T}, Sacrifice a creature: You gain life equal to the sacrificed creature's toughness.

Mikokoro, Center of the Sea

{T}: Add {1} to your mana pool. {2}, {T}: Each player draws a card.

Fierce Empath

When Fierce Empath comes into play, you may search your library for a creature card with converted mana cost 6 or more, reveal it, and put it into your hand. Then shuffle your library.

Havenwood Battleground

Havenwood Battleground comes into play tapped. {T}: Add {G} to your mana pool. {T}, Sacrifice Havenwood Battleground: Add {G}{G} to your mana pool.

Crystal Vein

{T}: Add one colorless mana to your mana pool. {T}, Sacrifice Crystal Vein: Add two colorless mana to your mana pool.

Horn of Greed

Whenever any player plays a land, that player draws a card.

Choke

Islands do not untap during their controllers' untap phases.

Crucible of Worlds

You may play land cards from your graveyard.

Maze of Ith

{T}: Target attacking creature becomes untapped. This creature neither deals nor receives damage as a result of combat.

Gemstone Caverns

If Gemstone Caverns is in your opening hand and you're not playing first, you may begin the game with Gemstone Caverns in play with a luck counter on it. If you do, remove a card in your hand from the game. {T}: Add {1} to your mana pool. If Gemstone Caverns has a luck counter on it, instead add one mana of any color to your mana pool.

Vesuva

As Vesuva comes into play, you may choose a land in play. If you do, Vesuva comes into play tapped as a copy of the chosen land.

Wild Growth

When tapped, target land provides 1 green mana in addition to the mana it normally provides.

Yavimaya Hollow

{T}: Add one colorless mana to your mana pool. {G}, {T}: Regenerate target creature.

Crop Rotation

At the time you play Crop Rotation, sacrifice a land. Search your library for a land card and put that land into play. Shuffle your library afterwards.

Grim Monolith

Grim Monolith does not untap during your untap phase. {4}: Untap Grim Monolith. {T}: Add three colorless mana to your mana pool. Play this ability as a mana source.

Carpet of Flowers

During your main phase, you may add up to X mana of one color to your mana pool, where X is the number of islands target opponent controls.

Exploration

You may play an additional land each turn.

Jungle Basin

Jungle Basin comes into play tapped. When Jungle Basin comes into play, return an untapped forest you control to owner's hand or bury Jungle Basin. {T}: Add {G} and one colorless mana to your mana pool.

Avenger of Zendikar

When Avenger of Zendikar enters the battlefield, put a 0/1 green Plant creature token onto the battlefield for each land you control. Landfall — Whenever a land enters the battlefield under your control, you may put a +1/+1 counter on each Plant creature you control.

Explore

You may play an additional land this turn. Draw a card.

Oracle of Mul Daya

You may play an additional land on each of your turns. Play with the top card of your library revealed. You may play the top card of your library if it's a land card.

Expedition Map

{2}, {T}, Sacrifice Expedition Map: Search your library for a land card, reveal it, and put it into your hand. Then shuffle your library.

Misty Rainforest

Verdant Catacombs

Windswept Heath

Wooded Foothills

Sanctum of Ugin

Shrine of the Forsaken Gods

Sylvan Scrying

Ulamog, the Ceaseless Hunger

Blasted Landscape

Eternal Witness

Mulch

Slippery Karst

Temple of the False God

Sea Gate Wreckage

World Breaker

Dust Bowl

Eye of Ugin

Tectonic Edge

Wasteland

Tireless Tracker

Emrakul, the Promised End

Desert of the Indomitable

Ramunap Excavator

Scavenger Grounds

Arch of Orazca

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.) {T}: Add {C}. {5}, {T}: Draw a card. Activate this ability only if you have the city's blessing.