Rakdos Carnarium

Land

Rakdos Carnarium enters the battlefield tapped.

When Rakdos Carnarium enters the battlefield, return a land you control to its owner's hand.

: Add to your mana pool.

Rakdos Guildgate

Land - Gate

Rakdos Guildgate enters the battlefield tapped.

: Add or to your mana pool.

Enter and indulge your darkest fantasies, for you may never pass this way again.

Rath's Edge

Legendary Land

: Add to your mana pool.

, , Sacrifice a land: Rath's Edge deals 1 damage to target creature or player.

Ravaged Highlands

Land

Ravaged Highlands enters the battlefield tapped.

: Add to your mana pool.

, Sacrifice Ravaged Highlands: Add one mana of any color to your mana pool.

Razorverge Thicket

Land

Razorverge Thicket enters the battlefield tapped unless you control two or fewer other lands.

: Add or to your mana pool.

Where the Razor Fields beat back the Tangle, the crowded thicket yields to bright scimitars of grass.

Reflecting Pool

Land

: Add to your mana pool one mana of any type that a land you control could produce.

Does it reflect the future that once was or the past that can never be?

Reliquary Tower

Land

You have no maximum hand size.

: Add to your mana pool.

Once guarded by the Knights of the Reliquary, the tower stands now protected only by its own remoteness, its dusty treasures open to plunder by anyone.

Remote Farm

Land

Remote Farm enters the battlefield tapped with two depletion counters on it.

, Remove a depletion counter from Remote Farm: Add to your mana pool. If there are no depletion counters on Remote Farm, sacrifice it.

Remote Isle

Land

Remote Isle enters the battlefield tapped.

: Add to your mana pool.

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

Rhystic Cave

Land

: Choose a color. Add one mana of that color to your mana pool unless any player pays . Activate this ability only any time you could cast an instant.

"All mages dip into the same well; some are just in more of a hurry."
-Alexi, zephyr mage

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."

Riptide Laboratory

Land

: Add to your mana pool.

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

Rishadan Port

Land

: Add to your mana pool.

, : Tap target land.

Rishada is the gateway to free trade-but the key will cost you.

Rith's Grove

Land - Lair

When Rith's Grove 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.

River Delta

Land

River Delta doesn't untap during your untap step if it has a depletion counter on it.

At the beginning of your upkeep, remove a depletion counter from River Delta.

: Add or to your mana pool. Put a depletion counter on River Delta.

River of Tears

Land

: Add to your mana pool. If you played a land this turn, add to your mana pool instead.

"The Westfolk wept, and their tears wore winding rivers into the cheek of the world."
-Glem the Lonebard, "Origins of Kholon"

Rix Maadi, Dungeon Palace

Land

: Add to your mana pool.

, : Each player discards a card. Activate this ability only any time you could cast a sorcery.

Even miles away, if you put your ear to the sewer vents, you can hear the screams and the tempestuous laughter.

Rocky Tar Pit

Land

Rocky Tar Pit enters the battlefield tapped.

, Sacrifice Rocky Tar Pit: Search your library for a Swamp or Mountain card and put it onto the battlefield. Then shuffle your library.

Rogue's Passage

Land

: Add to your mana pool.

, : Target creature is unblockable this turn.

Rumors quickly spread among thieves about a labyrinth without walls and a prize beyond all measures of worth.

Rootbound Crag

Land

Rootbound Crag enters the battlefield tapped unless you control a Mountain or a Forest.

: Add or to your mana pool.

Rootwater Depths

Land

: Add to your mana pool.

: Add or to your mana pool. Rootwater Depths doesn't untap during your next untap step.

Rugged Highlands

Land

Rugged Highlands enters the battlefield tapped.

When Rugged Highlands enters the battlefield, you gain 1 life.

: Add or to your mana pool.

Rugged Prairie

Land

: Add to your mana pool.

, : Add , , or to your mana pool.

Hobs bury their kin far from home. They believe the dry, open ground keeps hags from stealing the bones and gwyllions from stealing the spirits.

Ruins of Oran-Rief

Land

Ruins of Oran-Rief enters the battlefield tapped.

: Add {C} to your mana pool. ({C} represents colorless mana.)

: Put a +1/+1 counter on target colorless creature that entered the battlefield this turn.

Ruins of Trokair

Land

Ruins of Trokair enters the battlefield tapped.

: Add to your mana pool.

, Sacrifice Ruins of Trokair: Add to your mana pool.

Rupture Spire

Land

Rupture Spire enters the battlefield tapped.

When Rupture Spire enters the battlefield, sacrifice it unless you pay .

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

Rushwood Grove

Land

Rushwood Grove enters the battlefield tapped.

: Put a storage counter on Rushwood Grove.

, Remove any number of storage counters from Rushwood Grove: Add to your mana pool for each storage counter removed this way.

Rustic Clachan

Land

As Rustic Clachan enters the battlefield, you may reveal a Kithkin card from your hand. If you don't, Rustic Clachan enters the battlefield tapped.

: Add to your mana pool.

Reinforce 1- (, Discard this card: Put a +1/+1 counter on target creature.)

Sacred Foundry

Land - Mountain Plains

(: Add or to your mana pool.)

As Sacred Foundry enters the battlefield, you may pay 2 life. If you don't, Sacred Foundry enters the battlefield tapped.

Safe Haven

Land

, : Exile target creature you control.

At the beginning of your upkeep, you may sacrifice Safe Haven. If you do, return each card exiled with Safe Haven to the battlefield under its owner's control.

Salt Flats

Land

Salt Flats enters the battlefield tapped.

: Add to your mana pool.

: Add or to your mana pool. Salt Flats deals 1 damage to you.

Salt Marsh

Land

Salt Marsh enters the battlefield tapped.

: Add or to your mana pool.

Only death breeds in stagnant water.
-Urborg saying

Saltcrusted Steppe

Land

: Add to your mana pool.

, : Put a storage counter on Saltcrusted Steppe.

, Remove X storage counters from Saltcrusted Steppe: Add X mana in any combination of and/or to your mana pool.

Sanctum of Ugin

Land

: Add to your mana pool.

Whenever you cast a colorless spell with converted mana cost 7 or greater, you may sacrifice Sanctum of Ugin. If you do, search your library for a colorless creature card, reveal it, put it into your hand, then shuffle your library.

Sand Silos

Land

Sand Silos enters the battlefield tapped.

You may choose not to untap Sand Silos during your untap step.

At the beginning of your upkeep, if Sand Silos is tapped, put a storage counter on it.

, Remove any number of storage counters from Sand Silos: Add to your mana pool for each storage counter removed this way.

Sandsteppe Citadel

Land

Sandsteppe Citadel enters the battlefield tapped.

: Add , , or to your mana pool.

That which endures, survives.

Sandstone Bridge

Land

Sandstone Bridge enters the battlefield tapped.

When Sandstone Bridge enters the battlefield, target creature gets +1/+1 and gains vigilance until end of turn.

: Add to your mana pool.

Sandstone Needle

Land

Sandstone Needle enters the battlefield tapped with two depletion counters on it.

, Remove a depletion counter from Sandstone Needle: Add to your mana pool. If there are no depletion counters on Sandstone Needle, sacrifice it.

Saprazzan Cove

Land

Saprazzan Cove enters the battlefield tapped.

: Put a storage counter on Saprazzan Cove.

, Remove any number of storage counters from Saprazzan Cove: Add to your mana pool for each storage counter removed this way.

Saprazzan Skerry

Land

Saprazzan Skerry enters the battlefield tapped with two depletion counters on it.

, Remove a depletion counter from Saprazzan Skerry: Add to your mana pool. If there are no depletion counters on Saprazzan Skerry, sacrifice it.