Prairie Stream

Land - Plains Island

(: Add or to your mana pool.)

Prairie Stream enters the battlefield tapped unless you control two or more basic lands.

The continent of Ondu is a vast plateau crisscrossed by deep trenches and meandering rivers.

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.

Plains

Basic Land - Plains

(: Add to your mana pool.)

Island

Basic Land - Island

(: Add to your mana pool.)

Swamp

Basic Land - Swamp

(: Add to your mana pool.)

Mountain

Basic Land - Mountain

(: Add to your mana pool.)