Treva's Ruins

Land - Lair

When Treva's Ruins enters the battlefield, sacrifice it unless you return a non-Lair land you control to its owner's hand.

: Add , , or to your mana pool.

Cabal Coffers

Land

, : Add to your mana pool for each Swamp you control.

Deep within the Cabal's vault, the Mirari pulsed like a dead sun-and its darkness radiated across Otaria.

Tainted Field

Land

: Add to your mana pool.

: Add or to your mana pool. Activate this ability only if you control a Swamp.

Tainted Isle

Land

: Add to your mana pool.

: Add or to your mana pool. Activate this ability only if you control a Swamp.

Tainted Peak

Land

: Add to your mana pool.

: Add or to your mana pool. Activate this ability only if you control a Swamp.

Tainted Wood

Land

: Add to your mana pool.

: Add or to your mana pool. Activate this ability only if you control a Swamp.

Krosan Verge

Land

Krosan Verge enters the battlefield tapped.

: Add to your mana pool.

, , Sacrifice Krosan Verge: Search your library for a Forest card and a Plains card and put them onto the battlefield tapped. Then shuffle your library.

Nantuko Monastery

Land

: Add to your mana pool.

Threshold - : Nantuko Monastery becomes a 4/4 green and white Insect Monk creature with first strike until end of turn. It's still a land. Activate this ability only if seven or more cards are in your graveyard.

Riftstone Portal

Land

: Add to your mana pool.

As long as Riftstone Portal is in your graveyard, lands you control have ": Add or to your mana pool."

Barren Moor

Land

Barren Moor enters the battlefield tapped.

: Add to your mana pool.

Cycling (, Discard this card: Draw a card.)

Bloodstained Mire

Land

, Pay 1 life, Sacrifice Bloodstained Mire: Search your library for a Swamp or Mountain card and put it onto the battlefield. Then shuffle your library.

Contested Cliffs

Land

: Add to your mana pool.

, : Target Beast creature you control fights target creature an opponent controls. (Each deals damage equal to its power to the other.)

Daru Encampment

Land

: Add to your mana pool.

, : Target Soldier creature gets +1/+1 until end of turn.

Flooded Strand

Land

, Pay 1 life, Sacrifice Flooded Strand: Search your library for a Plains or Island card and put it onto the battlefield. Then shuffle your library.

Forgotten Cave

Land

Forgotten Cave enters the battlefield tapped.

: Add to your mana pool.

Cycling (, Discard this card: Draw a card.)

Goblin Burrows

Land

: Add to your mana pool.

, : Target Goblin creature gets +2/+0 until end of turn.

Grand Coliseum

Land

Grand Coliseum enters the battlefield tapped.

: Add to your mana pool.

: Add one mana of any color to your mana pool. Grand Coliseum deals 1 damage to you.

Lonely Sandbar

Land

Lonely Sandbar enters the battlefield tapped.

: Add to your mana pool.

Cycling (, Discard this card: Draw a card.)

Polluted Delta

Land

, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card and put it onto the battlefield. Then shuffle your library.

Riptide Laboratory

Land

: Add to your mana pool.

, : Return target Wizard you control to its owner's hand.

Seaside Haven

Land

: Add to your mana pool.

, , Sacrifice a Bird: Draw a card.

Secluded Steppe

Land

Secluded Steppe enters the battlefield tapped.

: Add to your mana pool.

Cycling (, Discard this card: Draw a card.)

Starlit Sanctum

Land

: Add to your mana pool.

, , Sacrifice a Cleric creature: You gain life equal to the sacrificed creature's toughness.

, , Sacrifice a Cleric creature: Target player loses life equal to the sacrificed creature's power.

Tranquil Thicket

Land

Tranquil Thicket enters the battlefield tapped.

: Add to your mana pool.

Cycling (, Discard this card: Draw a card.)

Unholy Grotto

Land

: Add to your mana pool.

, : Put target Zombie card from your graveyard on top of your library.

Windswept Heath

Land

, Pay 1 life, Sacrifice Windswept Heath: Search your library for a Forest or Plains card and put it onto the battlefield. Then shuffle your library.

Wirewood Lodge

Land

: Add to your mana pool.

, : Untap target Elf.

Wooded Foothills

Land

, Pay 1 life, Sacrifice Wooded Foothills: Search your library for a Mountain or Forest card and put it onto the battlefield. Then shuffle your library.

Temple of the False God

Land

: Add to your mana pool. Activate this ability only if you control five or more lands.

Those who bring nothing to the temple take nothing away.

Ancient Den

Artifact Land

(Ancient Den isn't a spell.)

: Add to your mana pool.

Blinkmoth Well

Land

: Add to your mana pool.

, : Tap target noncreature artifact.

Cloudpost

Land - Locus

Cloudpost enters the battlefield tapped.

: Add to your mana pool for each Locus on the battlefield.

Glimmervoid

Land

At the beginning of the end step, if you control no artifacts, sacrifice Glimmervoid.

: Add one mana of any color to your mana pool.

Great Furnace

Artifact Land

(Great Furnace isn't a spell.)

: Add to your mana pool.

Seat of the Synod

Artifact Land

(Seat of the Synod isn't a spell.)

: Add to your mana pool.

Tree of Tales

Artifact Land

(Tree of Tales isn't a spell.)

: Add to your mana pool.

Vault of Whispers

Artifact Land

(Vault of Whispers isn't a spell.)

: Add to your mana pool.

Blinkmoth Nexus

Land

: Add to your mana pool.

: Blinkmoth Nexus becomes a 1/1 Blinkmoth artifact creature with flying until end of turn. It's still a land.

, : Target Blinkmoth creature gets +1/+1 until end of turn.

Darksteel Citadel

Artifact Land

Indestructible (Effects that say "destroy" don't destroy this land.)

: Add to your mana pool.

Panopticon, forge of the Darksteel Eye, home of Mirrodin's keeper.

Mirrodin's Core

Land

: Add to your mana pool.

: Put a charge counter on Mirrodin's Core.

, Remove a charge counter from Mirrodin's Core: Add one mana of any color to your mana pool.