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

Urbis Protector

Creature - Human Cleric

When Urbis Protector enters the battlefield, put a 4/4 white Angel creature token with flying onto the battlefield.

"I hear that Boros is losing its angels to the Gateless Movement. I'm sure this comes as no surprise to you."
-Teysa, to Lazav

Urban Evolution

Sorcery

Draw three cards. You may play an additional land this turn.

As the Simic released more of their krasis experiments, they required new habitats, always at the expense of the locals.

Urban Burgeoning

Enchantment - Aura

Enchant land

Enchanted land has "Untap this land during each other player's untap step."

The ruins of Old Prahv became a wildspace, although all birdsong was silenced by lingering Azorius magic.

Unyielding Krumar

Creature - Orc Warrior

: Unyielding Krumar gains first strike until end of turn.

"The man whom I call father killed the orc who sired me, offering his world and his blade in return."

Untamed Hunger

Enchantment - Aura

Enchant creature

Enchanted creature gets +2/+1 and has menace. (It can't be blocked except by two or more creatures.)

"Mindlessness is not weakness. When we are lost to hunger we are unstoppable."
-Drana, Kalastria bloodchief

Unravel the Æther

Instant

Choose target artifact or enchantment. Its owner shuffles it into his or her library.

Thaumaturges of Theros have learned to weave their magic into the world around them, but it can be pulled apart strand by strand.

Unnatural Endurance

Instant

Devoid (This card has no color.)

Target creature gets +2/+0 until end of turn. Regenerate it.

"Eldrazi don't die easy. Sometimes they don't die at all."
-Yon Basrel, Oran-Rief survivalist

Unnatural Aggression

Instant

Devoid (This card has no color.)

Target creature you control fights target creature an opponent controls. If the creature an opponent controls would die this turn, exile it instead.

The battle served as a grim reminder of what a final victory for the Eldrazi would mean.

Unmake the Graves

Instant

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Return up to two target creature cards from your graveyard to your hand.

"I'm raising an army. Any volunteers?"

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.

Unity of Purpose

Instant

Support 2. (Put a +1/+1 counter on each of up to two target creatures.)

Untap each creature you control with a +1/+1 counter on it.

Faced with the novel problem of inspiring an army, Jace asked himself: "What would Gideon say?"

Unified Front

Sorcery

Converge - Put a 1/1 white Kor Ally creature token onto the battlefield for each color of mana spent to cast Unified Front.

The kor's pride in their independence has given way to a strong sense of community that embraces all of Zendikar.

Unflinching Courage

Enchantment - Aura

Enchant creature

Enchanted creature gets +2/+2 and has trample and lifelink.

As Trostani's influence grew, vitality spread through the Conclave-much to the other guilds' dismay.

Unexpected Results

Sorcery

Shuffle your library, then reveal the top card. If it's a nonland card, you may cast it without paying its mana cost. If it's a land card, you may put it onto the battlefield and return Unexpected Results to its owner's hand.

Underworld Connections

Enchantment - Aura

Enchant land

Enchanted land has ", Pay 1 life: Draw a card."

If you're looking for it, it's available. The question is how much you're willing to pay.

Underworld Coinsmith

Enchantment Creature - Human Cleric

Constellation - Whenever Underworld Coinsmith or another enchantment enters the battlefield under your control, you gain 1 life.

, Pay 1 life: Each opponent loses 1 life.

Coins of the Underworld are shaped from clay funerary masks.

Underworld Cerberus

Creature - Hound

Underworld Cerberus can't be blocked except by three or more creatures.

Cards in graveyards can't be the targets of spells or abilities.

When Underworld Cerberus dies, exile it and each player returns all creature cards from his or her graveyard to his or her hand.

Undergrowth Scavenger

Creature - Fungus Horror

Undergrowth Scavenger enters the battlefield with a number of +1/+1 counters on it equal to the number of creature cards in all graveyards.

It sees a rotting carcass as a good wine which has been aged properly.

Undergrowth Champion

Creature - Elemental

If damage would be dealt to Undergrowth Champion while it has a +1/+1 counter on it, prevent that damage and remove a +1/+1 counter from Undergrowth Champion.

Landfall - Whenever a land enters the battlefield under your control, put a +1/+1 counter on Undergrowth Champion.

Undercity Plague

Sorcery

Target player loses 1 life, discards a card, then sacrifices a permanent.

Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

Undercity Informer

Creature - Human Rogue

, Sacrifice a creature: Target player reveals cards from the top of his or her library until he or she reveals a land card, then puts those cards into his or her graveyard.

"Scandal and slander are never welcome news. That's why I'm never the messenger."

Undead Minotaur

Creature - Zombie Minotaur

"The work that went into creating this magnificent specimen. Horrific, deadly, well-balanced. Not all necromancers do elegant work like this."-Lestin, necromancer

Uncovered Clues

Sorcery

Look at the top four cards of your library. You may reveal up to two instant and/or sorcery cards from among them and put the revealed cards into your hand. Put the rest on the bottom of your library in any order.

The Implicit Maze winds through Ravnica, connecting arcane landmarks of all ten guilds.

Umara Entangler

Creature - Merfolk Rogue Ally

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

"Sea Gate is gone, the Halimar basin empty. But rebuild the seawall and give these waters time, and they will fill the basin anew."

Ultimate Price

Instant

Destroy target monocolored creature.

"Let him be an example to others who would default on their debts to us."
-"The Cozen," Orzhov assassin

Ulcerate

Instant

Target creature gets -3/-3 until end of turn. You lose 3 life.

"If it were merely lethal, that would be sufficient. The art, however, is in maximizing the suffering it causes."
-Liliana Vess

Ulamog, the Ceaseless Hunger

Legendary Creature - Eldrazi

When you cast Ulamog, the Ceaseless Hunger, exile two target permanents.

Indestructible

Whenever Ulamog attacks, defending player exiles the top twenty cards of his or her library.

A force as voracious as time itself.

Ulamog's Reclaimer

Creature - Eldrazi Processor

Devoid (This card has no color.)

When Ulamog's Reclaimer enters the battlefield, you may put a card an opponent owns from exile into that player's graveyard. If you do, return target instant or sorcery card from your graveyard to your hand.

Ulamog's Nullifier

Creature - Eldrazi Processor

Devoid (This card has no color.)

Flash

Flying

When Ulamog's Nullifier enters the battlefield, you may put two cards your opponents own from exile into their owners' graveyards. If you do, counter target spell.

Ulamog's Despoiler

Creature - Eldrazi Processor

As Ulamog's Despoiler enters the battlefield, you may put two cards your opponents own from exile into their owners' graveyards. If you do, Ulamog's Despoiler enters the battlefield with four +1/+1 counters on it.

Ugin's Nexus

Legendary Artifact

If a player would begin an extra turn, that player skips that turn instead.

If Ugin's Nexus would be put into a graveyard from the battlefield, instead exile it and take an extra turn after this one.

All at once Sarkhan's mind fell silent.

Ugin's Insight

Sorcery

Scry X, where X is the highest converted mana cost among permanents you control, then draw three cards.

"You speak to me of the threat of Ulamog. But do not forget: they came as three."-Ugin, to Jace Beleren

Ubul Sar Gatekeepers

Creature - Zombie Soldier

When Ubul Sar Gatekeepers enters the battlefield, if you control two or more Gates, target creature an opponent controls gets -2/-2 until end of turn.

There are many gates into the undercity, but few ways out.

Tyrant's Machine

Artifact

, : Tap target creature.

"Though tempered differently, all wills can be broken."
-Inquisitor Kyrik

Tyrant of Valakut

Creature - Dragon

Surge (You may cast this spell for its surge cost if you or a teammate has cast another spell this turn.)

Flying

When Tyrant of Valakut enters the battlefield, if its surge cost was paid, it deals 3 damage to target creature or player.

Typhoid Rats

Creature - Rat

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Kidnappers caught in Havengul are given two choices: languish in prison or become rat catchers. The smart ones go to prison.

Tymaret, the Murder King

Legendary Creature - Zombie Warrior

, Sacrifice another creature: Tymaret, the Murder King deals 2 damage to target player.

, Sacrifice a creature: Return Tymaret from your graveyard to your hand.

His memories remained in the Underworld, but his cruelty crossed the Rivers with him.

Two-Headed Cerberus

Creature - Hound

Double strike (This creature deals both first-strike and regular combat damage.)

The left head keeps the right head starved as motivation to track new prey.

Twinflame

Sorcery

Strive - Twinflame costs more to cast for each target beyond the first.

Choose any number of target creatures you control. For each of them, put a token that's a copy of that creature onto the battlefield. Those tokens have haste. Exile them at the beginning of the next end step.