Target creature gets +2/+0 and gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Search your library for a Doctor card, reveal it, put it into your hand, then shuffle.

Target artifact or creature's owner puts it on the top or bottom of their library.

Exile target creature.

Search your library for a nonlegendary card, put that card into your graveyard, then shuffle.

Choose a card name. Search target opponent's graveyard, hand, and library for up to four cards with that name and exile them. That player shuffles, then draws a card for each card exiled from their hand this way.

Devoid (This card has no color.)

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

Enchant creature

At the beginning of the upkeep of enchanted creature's controller, Unnatural Hunger deals damage equal to that creature's power to that player unless they sacrifice another creature.

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

: Choose a creature type other than Wall. Target creature becomes that type until end of turn.

Each opponent discards two cards.

Return up to one target nonland permanent to its owner's hand. Manifest dread. (Look at the top two cards of your library. Put one onto the battlefield face down as a 2/2 creature and the other into your graveyard. Turn it face up any time for its mana cost if it's a creature card.)

Enchant creature

Enchanted creature has "Whenever this creature attacks, it deals X damage to defending player, where X is the number of cards in their hand."

When Unquenchable Fury is put into your graveyard from the battlefield, return it to your hand.

Enchant creature

When Unquestioned Authority enters, draw a card.

Enchanted creature has protection from creatures.

: Target attacking Zombie gains lifelink until end of turn.

: Target attacking Zombie gains deathtouch until end of turn.

Trample

Whenever Unruly Krasis attacks, you may have the base power and toughness of another target creature you control become X/X until end of turn, where X is Unruly Krasis's power.

: Adapt 3. (If this creature has no +1/+1 counters on it, put three +1/+1 counters on it.)

2 — Whenever this creature attacks, bolster 1. (Choose a creature with the least toughness among creatures you control and put a +1/+1 counter on it.)

4 — Indestructible

2 — 3/2

3 — 5/4

When Unscrupulous Contractor enters, you may sacrifice a creature. When you do, target player draws two cards and loses 2 life.

Plot (You may pay and exile this card from your hand. Cast it as a sorcery on a later turn without paying its mana cost. Plot only as a sorcery.)

Each player mills three cards. Then you return up to two creature cards from your graveyard to your hand. (To mill three cards, a player puts the top three cards of their library into their graveyard.)

Changeling (This card is every creature type.)

Whenever you or a permanent you control becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays .

When Unshakable Tail enters and at the beginning of your upkeep, surveil 1.

Whenever one or more creature cards are put into your graveyard from your library, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

, Sacrifice a Clue: Return Unshakable Tail from your graveyard to your hand.

When Unstable Amulet enters, you get (two energy counters).

Whenever you cast a spell from anywhere other than your hand, Unstable Amulet deals 1 damage to each opponent.

, Pay : Exile the top card of your library. You may play it until you exile another card with Unstable Amulet.

: Add .

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

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

When Unstable Hulk is turned face up, it gets +6/+6 and gains trample until end of turn. You skip your next turn.

: Add .

, , Sacrifice Unstable Obelisk: Destroy target permanent.

Whenever another creature enters, Unstable Shapeshifter becomes a copy of that creature, except it has this ability.

When Unstoppable Ogre enters, target creature can't block this turn.

Return target spell or creature to its owner's hand.

Untaidake, the Cloud Keeper enters tapped.

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

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

Vigilance, trample

If Untamed Kavu was kicked, it enters with three +1/+1 counters on it.

Trample

Other Wolves and Werewolves you control have trample.

: Put a +1/+1 counter on target creature.

Nightbound (If a player casts at least two spells during their own turn, it becomes day next turn.)

Trample

Whenever Untethered Express attacks, put a +1/+1 counter on it.

Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

Destroy target creature. Its controller manifests dread. (That player looks at the top two cards of their library, then puts one onto the battlefield face down as a 2/2 creature and the other into their graveyard. If it's a creature card, it can be turned face up any time for its mana cost.)

Menace (This creature can't be blocked except by two or more creatures.)

, Exile Unwilling Ingredient from your graveyard: You draw a card and you lose 1 life.

Vigilance

Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, put a possession counter on Unwilling Vessel.

When Unwilling Vessel dies, create an X/X blue Spirit creature token with flying, where X is the number of counters on Unwilling Vessel.

Untap all artifacts you control during each other player's untap step.

At the beginning of your end step, if you planeswalked to Unyaro this turn, untap all creatures. They phase out until a player planeswalks. (Treat them and anything attached to them as though they didn't exist.)

Whenever chaos ensues, create two 2/2 white and blue Knight creature tokens with vigilance.

Flying

: Unyaro Bees gets +1/+1 until end of turn.

, Sacrifice Unyaro Bees: It deals 2 damage to any target.

Disguise (You may cast this card face down for as a 2/2 creature with ward . Turn it face up any time for its disguise cost.)

When Unyielding Gatekeeper is turned face up, exile another target nonland permanent. If you controlled it, return it to the battlefield tapped. Otherwise, its controller creates a 2/2 white and blue Detective creature token.

When Up the Beanstalk enters and whenever you cast a spell with mana value 5 or greater, draw a card.

Flying

Creatures played by your opponents enter tapped.

Put target land on top of its owner's library.

First strike

Whenever you cast an instant or sorcery spell, Urabrask deals 1 damage to target opponent. Add .

: Exile Urabrask, then return it to the battlefield transformed under its owner's control. Activate only as a sorcery and only if you've cast three or more instant and/or sorcery spells this turn.

Haste

At the beginning of your upkeep, exile the top card of your library. You may play it this turn.

At the beginning of each opponent's upkeep, the next time they would draw a card this turn, instead they exile the top card of their library. They may play it this turn.

At the beginning of combat on your turn, put an oil counter on Urabrask's Forge, then create an X/1 red Phyrexian Horror creature token with trample and haste, where X is the number of oil counters on Urabrask's Forge. Sacrifice that token at the beginning of the next end step.

Vigilance

Enrage — Whenever Urban Daggertooth is dealt damage, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Enchant land

When Urban Utopia enters, draw a card.

Enchanted land has ": Add one mana of any color."

: Add .

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

: Add , , or .