Utter End

Instant

Exile target nonland permanent.

"I came seeking a challenge. All I found was you."
-Zurgo, khan of the Mardu

Urza's Rage

Instant

Kicker (You may pay an additional as you cast this spell.)

Urza's Rage can't be countered by spells or abilities.

Urza's Rage deals 3 damage to target creature or player. If Urza's Rage was kicked, instead it deals 10 damage to that creature or player and the damage can't be prevented.

Urgent Exorcism

Instant

Destroy target Spirit or enchantment.

"To show geists pity is to prolong their agonies. Whether they know it or not, they seek the Blessed Sleep, and we are to give it to them."
-Mikaeus, the Lunarch

Urge to Feed

Instant

Target creature gets -3/-3 until end of turn. You may tap any number of untapped Vampire creatures you control. If you do, put a +1/+1 counter on each of those Vampires.

Urborg Justice

Instant

Target opponent sacrifices a creature for each creature put into your graveyard from the battlefield this turn.

"It is a narrow line between justice and vengeance."
-Crovax

Updraft

Instant

Target creature gains flying until end of turn.

Draw a card at the beginning of the next turn's upkeep.

"Come one, come all! this rock shall fly From its firm base as soon as I."
-Sir Walter Scott, "The Lady of the Lake"

Untamed Might

Instant

Target creature gets +X/+X until end of turn.

"Beasts kill for their very survival. If you would have their strength, you must know their desperation."
-Konnos, Sylvok sage

Unsummon

Instant

Return target creature to its owner's hand.

Not to be. That is the answer.

Unstable Footing

Instant

Kicker (You may pay an additional as you cast this spell.)

Damage can't be prevented this turn. If Unstable Footing was kicked, it deals 5 damage to target player.

A long way down is shorter than you think.

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.

Unnerving Assault

Instant

Creatures your opponents control get -1/-0 until end of turn if was spent to cast Unnerving Assault, and creatures you control get +1/+0 until end of turn if was spent to cast it. (Do both if was spent.)

The scales of battle rarely balance.

Unnatural Speed

Instant - Arcane

Target creature gains haste until end of turn.

"How can we hope to match the speed of lightning? The fury of storms? The power of mountains? The answer is simple. We cannot. I advise against this war."
-Sensei Hisoka, letter to Lord Konda

Unnatural Predation

Instant

Target creature gets +1/+1 and gains trample until end of turn.

"Domination by the strongest-that is all that matters in the Tangle now."
-Vorinclex, Voice of Hunger

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?"

Unmake

Instant

Exile target creature.

A gwyllion's favorite trap is the vanity mirror. A bewitched piece of glass traps the looker's soul and does away with the body.

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 Will

Instant

Counter target spell if you control more creatures than that spell's controller.

"We're glad to be of service-to be an audience to your failure."
-Maizah Shere, Tazeem lullmage

Unified Strike

Instant

Exile target attacking creature if its power is less than or equal to the number of Soldiers on the battlefield.

The tall, reedy grass of the Daru Plains rustles loudly in the winds, a perfect cover for any ambush.

Unforge

Instant

Destroy target Equipment. If that Equipment was attached to a creature, Unforge deals 2 damage to that creature.

Compared to the fire of the forge, the strength of steel is nothing.

Unexpectedly Absent

Instant

Put target nonland permanent into its owner's library just beneath the top X cards of that library.

Once you've been dragged down the currents of time, you'll never quite trust your own permanence again.

Undying Evil

Instant

Target creature gains undying until end of turn. (When it dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

"Is it true the evil that people do follows them into death? Let's find out."
-Liliana Vess

Undermine

Instant

Counter target spell. Its controller loses 3 life.

"Which would you like first, the insult or the injury?"

Undergrowth

Instant

As an additional cost to cast Undergrowth, you may pay .

Prevent all combat damage that would be dealt this turn. If its additional cost was paid, Undergrowth doesn't affect combat damage that would be dealt by red creatures.

"It is the work of sorcery. Burn it!" -Taaveti of Kelsinko, Elvish Hunter

Unchecked Growth

Instant - Arcane

Target creature gets +4/+4 until end of turn. If it's a Spirit, it gains trample until end of turn.

"That energy was once granted to growing things. Now the kami keep it for themselves, releasing it in sudden floods that overwhelm flesh and foliage alike."
-Sakiko, Mother of Summer

Uncanny Speed

Instant

Target creature gets +3/+0 and gains haste until end of turn.

"To survive, we must embrace the savagery we knew in our race's infancy."
-Edgar Markov

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

Twitch

Instant

You may tap or untap target artifact, creature, or land.

Draw a card.

"The flow is diverted. Your path is clear. What are you waiting for-the cave to bid you welcome?"
-Maizah Shere, Tazeem lullmage

Twisted Image

Instant

Switch target creature's power and toughness until end of turn.

Draw a card.

"True strength is in the mind, for the body is too malleable a form."
-Politus, vedalken emisar

Twinstrike

Instant

Twinstrike deals 2 damage to each of two target creatures.

Hellbent - Destroy those creatures instead if you have no cards in hand.

They're dying left and right.

Twincast

Instant

Copy target instant or sorcery spell. You may choose new targets for the copy.

Imitation is the most dangerous form of flattery.

Twin Bolt

Instant

Twin Bolt deals 2 damage divided as you choose among one or two target creatures and/or players.

Kolaghan archers are trained in Dakla, the way of the bow. They utilize their dragonlord's lightning to strike their target, no matter how small, how fast, or how far away.

Twiddle

Instant

You may tap or untap target artifact, creature, or land.

Turnabout

Instant

Choose artifact, creature, or land. Tap all untapped permanents of the chosen type target player controls, or untap all tapped permanents of that type that player controls.

The best cure for a big ego is a little failure.

Turn to Mist

Instant

Exile target creature. Return that card to the battlefield under its owner's control at the beginning of the next end step.

"Did you expect me to dodge? How quaint."
-Olka, mistmeadow witch

Turn to Frog

Instant

Until end of turn, target creature loses all abilities and becomes a blue Frog with base power and toughness 1/1.

"Ribbit."

Turn to Dust

Instant

Destroy target Equipment. Add to your mana pool.

Turn the Tide

Instant

Creatures your opponents control get -2/-0 until end of turn.

"Let their mindless armies come and face the might of genius."
-Varil, Neurok partisan