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

Search your library for a basic land card, put that card onto the battlefield, then shuffle.

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.)

: Regenerate Unworthy Dead.

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.

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."

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

When Urborg Emissary enters, if it was kicked, return target permanent to its owner's hand.

Urborg Phantom can't block.

: Prevent all combat damage that would be dealt to and dealt by Urborg Phantom this turn.

Other black creatures get -1/-1.

, , Discard a card: Each other player loses 2 life. You gain life equal to the life lost this way.

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

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Uril, the Miststalker gets +2/+2 for each Aura attached to it.

: Target creature gets +1/+1 until end of turn.

Ursine Fylgja enters with four healing counters on it.

Remove a healing counter from Ursine Fylgja: Prevent the next 1 damage that would be dealt to Ursine Fylgja this turn.

: Put a healing counter on Ursine Fylgja.

When Uruk-hai Berserker enters, the Ring tempts you.

+1: Head to AskUrza.com and click +1.

-1: Head to AskUrza.com and click -1.

-6: Head to AskUrza.com and click -6.

When Urza, Lord High Artificer enters, create a 0/0 colorless Construct artifact creature token with "This creature gets +1/+1 for each artifact you control."

Tap an untapped artifact you control: Add .

: Shuffle your library, then exile the top card. Until end of turn, you may play that card without paying its mana cost.

You may activate the loyalty abilities of Urza, Planeswalker twice each turn rather than only once.

+2: Artifact, instant, and sorcery spells you cast this turn cost less to cast. You gain 2 life.

+1: Draw two cards, then discard a card.

0: Create two 1/1 colorless Soldier artifact creature tokens.

−3: Exile target nonland permanent.

−10: Artifacts and planeswalkers you control gain indestructible until end of turn. Destroy all nonland permanents.

Artifact creatures you control get +2/+2.

: Create a token that's a copy of target artifact you control, except it's a 1/1 Soldier creature in addition to its other types.

: Urza's Avenger gets -1/-1 and gains your choice of banding, flying, first strike, or trample until end of turn. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

: Draw a card.

Whenever a player casts an artifact spell, you may pay . If you do, you gain 1 life.

Urza's Contact Lenses enters tapped.

Urza's Contact Lenses doesn't untap during your untap step.

As long as Urza's Contact Lenses is untapped, all players play with their hands revealed.

Clap your hands twice: You may tap or untap Urza's Contact Lenses.

Trample

: Urza's Engine gains banding until end of turn. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

: Attacking creatures banded with Urza's Engine gain trample until end of turn.

Multicolored spells cost less to cast.

Each player draws two cards, then discards three cards, then loses 4 life.

As Urza's Incubator enters, choose a creature type.

Creature spells of the chosen type cost less to cast.

Whenever an artifact you control is put into a graveyard from the battlefield, if it wasn't sacrificed, you may pay . If you do, draw a card.

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

This spell can't be countered.

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

(You may cast a legendary sorcery only if you control a legendary creature or planeswalker.)

Exile all nonland permanents that aren't legendary.

: Roll a six-sided die. Urza's Science Fair Project gets the indicated result.

1 — It gets -2/-2 until end of turn.

2 — Prevent all combat damage it would deal this turn.

3 — It gains vigilance until end of turn.

4 — It gains first strike until end of turn.

5 — It gains flying until end of turn.

6 — It gets +2/+2 until end of turn.

, : Draw a card. Then discard a card unless you exile a historic card from your graveyard. (Artifacts, legendaries, and Sagas are historic.)

: Add .

Metalcraft — : Add for each Urza's land you control. Activate only if you control three or more artifacts.

Return target permanent you control to its owner's hand. (Then exile this card. You may cast the creature later from exile.)

At the beginning of your upkeep, put a spore counter on Utopia Mycon.

Remove three spore counters from Utopia Mycon: Create a 1/1 green Saproling creature token.

Sacrifice a Saproling: Add one mana of any color.

: Add one mana of any color.

Flash

Enchant creature

Enchanted creature loses all abilities and has base power and toughness 1/1.

: Exile enchanted creature.

Flying

Utvara Scalper attacks each combat if able.

: You may exile an instant or sorcery card from your hand and put three hone counters on it. It gains "At the beginning of your upkeep, if this card is exiled, remove a hone counter from it" and "When the last hone counter is removed from this card, if it's exiled, you may cast it. It costs less to cast this way."

Replicate (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)

Return target creature to its owner's hand.

If it's neither day nor night, it becomes day as Vadrik, Astral Archmage enters.

Instant and sorcery spells you cast cost less to cast, where X is Vadrik's power.

Whenever day becomes night or night becomes day, put a +1/+1 counter on Vadrik.

Flying

At the beginning of your upkeep, sacrifice Vaevictis Asmadi unless you pay .

: Vaevictis Asmadi gets +1/+0 until end of turn.

: Vaevictis Asmadi gets +1/+0 until end of turn.

: Vaevictis Asmadi gets +1/+0 until end of turn.