Tomb of the Spirit Dragon

Land

: Add to your mana pool.

, : You gain 1 life for each colorless creature you control.

"The voice calls me here, yet I see only bones. Is this more dragon trickery?"
-Sarkhan Vol

Tomb of Urami

Legendary Land

: Add to your mana pool. Tomb of Urami deals 1 damage to you if you don't control an Ogre.

, , Sacrifice all lands you control: Put a legendary 5/5 black Demon Spirit creature token with flying named Urami onto the battlefield.

Tower of the Magistrate

Land

: Add to your mana pool.

, : Target creature gains protection from artifacts until end of turn.

Like the city, weakest at its foundation.

Tranquil Cove

Land

Tranquil Cove enters the battlefield tapped.

When Tranquil Cove enters the battlefield, you gain 1 life.

: Add or to your mana pool.

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.

Tranquil Garden

Land

: Add to your mana pool.

: Add or to your mana pool. Tranquil Garden doesn't untap during your next untap step.

Tranquil Thicket

Land

Tranquil Thicket enters the battlefield tapped.

: Add to your mana pool.

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

Transguild Promenade

Land

Transguild Promenade enters the battlefield tapped.

When Transguild Promenade enters the battlefield, sacrifice it unless you pay .

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

Tree of Tales

Artifact Land

(Tree of Tales isn't a spell.)

: Add to your mana pool.

Treetop Village

Land

Treetop Village enters the battlefield tapped.

: Add to your mana pool.

: Treetop Village becomes a 3/3 green Ape creature with trample until end of turn. It's still a land. (If it would assign enough damage to its blockers to destroy them, you may have it assign the rest of its damage to defending player or planeswalker.)

Tresserhorn Sinks

Snow Land

Tresserhorn Sinks enters the battlefield tapped.

: Add or to your mana pool.

"Our land oppressed by silent Cold,
We weary wretches, young and old,
Pray that Springtime loose his hold."
-The Dynasty of Winter Kings

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.

Tropical Island

Land - Forest Island

(: Add or to your mana pool.)

Tundra

Land - Plains Island

(: Add or to your mana pool.)

Turntimber Grove

Land

Turntimber Grove enters the battlefield tapped.

When Turntimber Grove enters the battlefield, target creature gets +1/+1 until end of turn.

: Add to your mana pool.

Twilight Mire

Land

: Add to your mana pool.

, : Add , , or to your mana pool.

As their roots soaked in a weak tea of bogwater and decay, the trees absorbed the essence of death into their living tissue.

Underground River

Land

: Add to your mana pool.

: Add or to your mana pool. Underground River deals 1 damage to you.

Underground Sea

Land - Island Swamp

(: Add or to your mana pool.)

Undiscovered Paradise

Land

: Add one mana of any color to your mana pool. During your next untap step, as you untap your permanents, return Undiscovered Paradise to its owner's hand.

Jolrael's choice of homes was far better than her choice of allies.

Unholy Citadel

Land

Black legendary creatures you control have "bands with other legendary creatures." (Any legendary creatures can attack in a band as long as at least one has "bands with other legendary creatures." Bands are blocked as a group. If at least two legendary creatures you control, one of which has "bands with other legendary creatures," are blocking or being blocked by the same creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Unholy Grotto

Land

: Add to your mana pool.

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

Unknown Shores

Land

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

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

Philosophers speak of a place where myths wash like tides upon the shores of the real.

Unstable Frontier

Land

: Add to your mana pool.

: Target land you control becomes the basic land type of your choice until end of turn.

The goblins went to sleep in Jund and awoke in Grixis. They'd never seen a zombie before. They would never see one again.

Untaidake, the Cloud Keeper

Legendary Land

Untaidake, the Cloud Keeper enters the battlefield tapped.

, Pay 2 life: Add to your mana pool. Spend this mana only to cast legendary spells.

Untaidake is the needle that weaves the fabric of creation.

Urborg

Legendary Land

: Add to your mana pool.

: Target creature loses first strike or swampwalk until end of turn.

"Resignedly beneath the sky/The melancholy waters lie./So blend the turrets and shadows there/That all seem pendulous in air,/While from a proud tower in town/Death looks gigantically down." -Edgar Allan Poe, "The City in the Sea"

Urborg Volcano

Land

Urborg Volcano enters the battlefield tapped.

: Add or to your mana pool.

Deep in the heart of Urborg lie massive volcanoes whose thick black smoke covers the land with perpetual darkness.

Urborg, Tomb of Yawgmoth

Legendary Land

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

"Yawgmoth's corpse is a wound in the universe. His foul blood seeps out, infecting the land with his final curse."
-Lord Windgrace

Urza's Factory

Land - Urza's

: Add to your mana pool.

, : Put a 2/2 colorless Assembly-Worker artifact creature token onto the battlefield.

"Though their ideals are leagues apart, Urza's and Mishra's creations have a surprising harmony with one another."
-Tocasia, journal entry

Urza's Mine

Land - Urza's Mine

: Add to your mana pool. If you control an Urza's Power-Plant and an Urza's Tower, add to your mana pool instead.

Urza's Power Plant

Land - Urza's Power-Plant

: Add to your mana pool. If you control an Urza's Mine and an Urza's Tower, add to your mana pool instead.

Urza's Tower

Land - Urza's Tower

: Add to your mana pool. If you control an Urza's Mine and an Urza's Power-Plant, add to your mana pool instead.

Valakut, the Molten Pinnacle

Land

Valakut, the Molten Pinnacle enters the battlefield tapped.

Whenever a Mountain enters the battlefield under your control, if you control at least five other Mountains, you may have Valakut, the Molten Pinnacle deal 3 damage to target creature or player.

: Add to your mana pool.

Vault of the Archangel

Land

: Add to your mana pool.

, : Creatures you control gain deathtouch and lifelink until end of turn.

"For centuries my creation kept this world in balance. Now only her shadow remains."
-Sorin Markov

Vault of Whispers

Artifact Land

(Vault of Whispers isn't a spell.)

: Add to your mana pool.

Vec Townships

Land

: Add to your mana pool.

: Add or to your mana pool. Vec Townships doesn't untap during your next untap step.

Veldt

Land

Veldt 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 Veldt.

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

Verdant Catacombs

Land

, Pay 1 life, Sacrifice Verdant Catacombs: Search your library for a Swamp or Forest card and put it onto the battlefield. Then shuffle your library.

Vesuva

Land

You may have Vesuva enter the battlefield tapped as a copy of any land on the battlefield.

It is everywhere you've ever been.

Vitu-Ghazi, the City-Tree

Land

: Add to your mana pool.

, : Put a 1/1 green Saproling creature token onto the battlefield.

In the autumn, she casts her seeds across the streets below, and come spring, her children rise in service to the Conclave.

Vivid Crag

Land

Vivid Crag enters the battlefield tapped with two charge counters on it.

: Add to your mana pool.

, Remove a charge counter from Vivid Crag: Add one mana of any color to your mana pool.