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.

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.

Shambling Vent

Land

Shambling Vent enters the battlefield tapped.

: Add or to your mana pool.

: Shambling Vent becomes a 2/3 white and black Elemental creature with lifelink until end of turn. It's still a land.

Shrine of the Forsaken Gods

Land

: Add to your mana pool.

: Add to your mana pool. Spend this mana only to cast colorless spells. Activate this ability only if you control seven or more lands.

The gods known to the merfolk as Ula, Emeria, and Cosi were nothing more than false memories of a monstrous trinity: the Eldrazi titans Ulamog, Emrakul, and Kozilek.

Skyline Cascade

Land

Skyline Cascade enters the battlefield tapped.

When Skyline Cascade enters the battlefield, target creature an opponent controls doesn't untap during its controller's next untap step.

: Add to your mana pool.

Smoldering Marsh

Land - Swamp Mountain

(: Add or to your mana pool.)

Smoldering Marsh enters the battlefield tapped unless you control two or more basic lands.

The continent of Guul Draz is a geothermal swampland reeking of heat and decay.

Spawning Bed

Land

: Add to your mana pool.

, , Sacrifice Spawning Bed: Put three 1/1 colorless Eldrazi Scion creature tokens onto the battlefield. They have "Sacrifice this creature: Add to your mana pool."

Young Eldrazi crawl forth from the dust, compelled by a greater will.

Sunken Hollow

Land - Island Swamp

(: Add or to your mana pool.)

Sunken Hollow enters the battlefield tapped unless you control two or more basic lands.

On the continent of Tazeem, rushing waters plunge through narrow canyons into mist-cloaked lakes.

Cinder Barrens

Land

Cinder Barrens enters the battlefield tapped.

: Add or to your mana pool.

A mudflow swallowed the lowlands years ago. All that remains are a bottomless mire and an endless rain of ash.

Corrupted Crossroads

Land

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

, Pay 1 life: Add one mana of any color to your mana pool. Spend this mana only to cast a spell with devoid.

"Look, and see the future."
-Ayli, high priest of the Eternal Pilgrims

Crumbling Vestige

Land

Crumbling Vestige enters the battlefield tapped.

When Crumbling Vestige enters the battlefield, add one mana of any color to your mana pool.

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

Hissing Quagmire

Land

Hissing Quagmire enters the battlefield tapped.

: Add or to your mana pool.

: Hissing Quagmire becomes a 2/2 black and green Elemental creature with deathtouch until end of turn. It's still a land.

Holdout Settlement

Land

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

, Tap an untapped creature you control: Add one mana of any color to your mana pool.

Even in areas of profound devastation, the hedrons remained intact.

Meandering River

Land

Meandering River enters the battlefield tapped.

: Add or to your mana pool.

The river split into many channels as it flowed to the Halimar Sea. Few travelers could follow the same one twice.

Mirrorpool

Land

Mirrorpool enters the battlefield tapped.

: Add {C} to your mana pool.

{C}, , Sacrifice Mirrorpool: Copy target instant or sorcery spell you control. You may choose new targets for the copy.

{C}, , Sacrifice Mirrorpool: Put a token onto the battlefield that's a copy of target creature you control.

Needle Spires

Land

Needle Spires enters the battlefield tapped.

: Add or to your mana pool.

: Needle Spires becomes a 2/1 red and white Elemental creature with double strike until end of turn. It's still a land.

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.

Sea Gate Wreckage

Land

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

{C}, : Draw a card. Activate this ability only if you have no cards in hand.

Once a center for knowledge, Sea Gate now serves as a reminder of what was lost.

Submerged Boneyard

Land

Submerged Boneyard enters the battlefield tapped.

: Add or to your mana pool.

"Long after the land has given up the last of its secrets, there will still be mysteries in the depths of the sea."
-Kiora

Timber Gorge

Land

Timber Gorge enters the battlefield tapped.

: Add or to your mana pool.

Tazeem's embrace is harsh, but for those that call it home, nothing else will do.

Tranquil Expanse

Land

Tranquil Expanse enters the battlefield tapped.

: Add or to your mana pool.

Despite the chaos of the Roil and the devastation of the Eldrazi, Zendikar is a world of breathtaking beauty.

Wandering Fumarole

Land

Wandering Fumarole enters the battlefield tapped.

: Add or to your mana pool.

: Until end of turn, Wandering Fumarole becomes a 1/4 blue and red Elemental creature with ": Switch this creature's power and toughness until end of turn." It's still a land.

Wastes

Basic Land

: Add {C} to your mana pool.

Advantageous Proclamation

Conspiracy

(Start the game with this conspiracy face up in the command zone.)

Your minimum deck size is reduced by five.

"The beneficent council deems you worthy of favor. They hope this doesn't provoke envy from your peers."

Backup Plan

Conspiracy

(Start the game with this conspiracy face up in the command zone.)

Draw an additional hand of seven cards as the game begins. Before taking mulligans, shuffle all but one of your hands into your library.

"In the market for an alternative, friend?"

Brago's Favor

Conspiracy

Hidden agenda (Start the game with this conspiracy face down in the command zone and secretly name a card. You may turn this conspiracy face up any time and reveal the chosen name.)

Spells with the chosen name you cast cost less to cast.

Double Stroke

Conspiracy

Hidden agenda (Start the game with this conspiracy face down in the command zone and secretly name a card. You may turn this conspiracy face up any time and reveal the chosen name.)

Whenever you cast an instant or sorcery spell with the chosen name, you may copy it. You may choose new targets for the copy.

Immediate Action

Conspiracy

Hidden agenda (Start the game with this conspiracy face down in the command zone and secretly name a card. You may turn this conspiracy face up any time and reveal the chosen name.)

Creatures you control with the chosen name have haste.

Iterative Analysis

Conspiracy

Hidden agenda (Start the game with this conspiracy face down in the command zone and secretly name a card. You may turn this conspiracy face up any time and reveal the chosen name.)

Whenever you cast an instant or sorcery spell with the chosen name, you may draw a card.

Muzzio's Preparations

Conspiracy

Hidden agenda (Start the game with this conspiracy face down in the command zone and secretly name a card. You may turn this conspiracy face up any time and reveal the chosen name.)

Each creature you control with the chosen name enters the battlefield with an additional +1/+1 counter on it.

Power Play

Conspiracy

(Start the game with this conspiracy face up in the command zone.)

You are the starting player. If multiple players would be the starting player, one of those players is chosen at random.

Secret Summoning

Conspiracy

Hidden agenda (Start the game with this conspiracy face down in the command zone and secretly name a card. You may turn this conspiracy face up any time and reveal the chosen name.)

Whenever a creature with the chosen name enters the battlefield under your control, you may search your library for any number of cards with that name, reveal them, put them into your hand, then shuffle your library.

Secrets of Paradise

Conspiracy

Hidden agenda (Start the game with this conspiracy face down in the command zone and secretly name a card. You may turn this conspiracy face up any time and reveal the chosen name.)

Creatures you control with the chosen name have ": Add one mana of any color to your mana pool."

Sentinel Dispatch

Conspiracy

(Start the game with this conspiracy face up in the command zone.)

At the beginning of the first upkeep, put a 1/1 colorless Construct artifact creature token with defender onto the battlefield.

"Unusual. Security also worth stealing."
-Dack Fayden

Unexpected Potential

Conspiracy

Hidden agenda (Start the game with this conspiracy face down in the command zone and secretly name a card. You may turn this conspiracy face up any time and reveal the chosen name.)

You may spend mana as though it were mana of any color to cast spells with the chosen name.

Worldknit

Conspiracy

(Start the game with this conspiracy face up in the command zone.)

As long as every card in your card pool started the game in your library or in the command zone, lands you control have ": Add one mana of any color to your mana pool."

Not of This World

Tribal Instant - Eldrazi

Counter target spell or ability that targets a permanent you control.

Not of This World costs less to cast if it targets a spell or ability that targets a creature you control with power 7 or greater.

Sage's Dousing

Tribal Instant - Wizard

Counter target spell unless its controller pays . If you control a Wizard, draw a card.

"Curse these merrows and their meddling! Since coming near the river, I can't so much as sneeze without being soaked."
-Ashling the Pilgrim

Stream of Unconsciousness

Tribal Instant - Wizard

Target creature gets -4/-0 until end of turn. If you control a Wizard, draw a card.

Dreams are tempting because one is so powerful in them. Dreams are dangerous because that power is a lie.

Thieves' Fortune

Tribal Instant - Rogue

Prowl (You may cast this for its prowl cost if you dealt combat damage to a player this turn with a Rogue.)

Look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.