Sunglasses of Urza

Artifact

You may spend white mana as though it were red mana.

Throne of Bone

Artifact

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

Time Vault

Artifact

Time Vault enters the battlefield tapped.

Time Vault doesn't untap during your untap step.

If you would begin your turn while Time Vault is tapped, you may skip that turn instead. If you do, untap Time Vault.

: Take an extra turn after this one.

Winter Orb

Artifact

Players can't untap more than one land during their untap steps.

Wooden Sphere

Artifact

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

Aladdin's Lamp

Artifact

, : The next time you would draw a card this turn, instead look at the top X cards of your library, put all but one of them on the bottom of your library in a random order, then draw a card. X can't be 0.

Armageddon Clock

Artifact

At the beginning of your upkeep, put a doom counter on Armageddon Clock.

At the beginning of your draw step, Armageddon Clock deals damage equal to the number of doom counters on it to each player.

: Remove a doom counter from Armageddon Clock. Any player may activate this ability but only during any upkeep step.

Bottle of Suleiman

Artifact

, Sacrifice Bottle of Suleiman: Flip a coin. If you lose the flip, Bottle of Suleiman deals 5 damage to you. If you win the flip, put a 5/5 colorless Djinn artifact creature token with flying onto the battlefield.

Ebony Horse

Artifact

, : Untap target attacking creature you control. Prevent all combat damage that would be dealt to and dealt by that creature this turn.

Flying Carpet

Artifact

, : Target creature gains flying until end of turn.

Ivory Tower

Artifact

At the beginning of your upkeep, you gain X life, where X is the number of cards in your hand minus 4.

Valuing scholarship above all else, the inhabitants of the Ivory Tower reward those who sacrifice power for knowledge.

Jandor's Ring

Artifact

, , Discard the last card you drew this turn: Draw a card.

Jandor's Saddlebags

Artifact

, : Untap target creature.

Each day of their journey, Jandor opened the saddlebags and found them full of mutton, quinces, cheese, date rolls, wine, and all manner of delicious and satisfying foods.

Rocket Launcher

Artifact

: Rocket Launcher deals 1 damage to target creature or player. Destroy Rocket Launcher at the beginning of the next end step. Activate this ability only if you've controlled Rocket Launcher continuously since the beginning of your most recent turn.

What these devices lacked in subtlety, they made up in strength.

The Rack

Artifact

As The Rack enters the battlefield, choose an opponent.

At the beginning of the chosen player's upkeep, The Rack deals X damage to that player, where X is 3 minus the number of cards in his or her hand.

Invented in Mishra's earlier days, the Rack was once his most feared creation.

Amulet of Kroog

Artifact

, : Prevent the next 1 damage that would be dealt to target creature or player this turn.

Among the first allies Urza gained were the people of Kroog. As a sign of friendship, Urza gave the healers of the city potent amulets; afterwards, thousands journeyed to Kroog in hope of healing.

Ashnod's Battle Gear

Artifact

You may choose not to untap Ashnod's Battle Gear during your untap step.

, : Target creature you control gets +2/-2 for as long as Ashnod's Battle Gear remains tapped.

This invention shows why Ashnod was feared by her troops as well as her foes.

Black Mana Battery

Artifact

, : Put a charge counter on Black Mana Battery.

, Remove any number of charge counters from Black Mana Battery: Add to your mana pool, then add an additional to your mana pool for each charge counter removed this way.

Blue Mana Battery

Artifact

, : Put a charge counter on Blue Mana Battery.

, Remove any number of charge counters from Blue Mana Battery: Add to your mana pool, then add an additional to your mana pool for each charge counter removed this way.

Bronze Tablet

Artifact

Remove Bronze Tablet from your deck before playing if you're not playing for ante.

Bronze Tablet enters the battlefield tapped.

, : Exile Bronze Tablet and target nontoken permanent an opponent owns. That player may pay 10 life. If he or she does, put Bronze Tablet into its owner's graveyard. Otherwise, that player owns Bronze Tablet and you own the other exiled card.

Coral Helm

Artifact

, Discard a card at random: Target creature gets +2/+2 until end of turn.

Cursed Rack

Artifact

As Cursed Rack enters the battlefield, choose an opponent.

The chosen player's maximum hand size is four.

Ashnod invented several torture techniques that could make victims even miles away beg for mercy as if the End had come.

Green Mana Battery

Artifact

, : Put a charge counter on Green Mana Battery.

, Remove any number of charge counters from Green Mana Battery: Add to your mana pool, then add an additional to your mana pool for each charge counter removed this way.

Red Mana Battery

Artifact

, : Put a charge counter on Red Mana Battery.

, Remove any number of charge counters from Red Mana Battery: Add to your mana pool, then add an additional to your mana pool for each charge counter removed this way.

Tawnos's Wand

Artifact

, : Target creature with power 2 or less is unblockable this turn.

Tawnos's Weaponry

Artifact

You may choose not to untap Tawnos's Weaponry during your untap step.

, : Target creature gets +1/+1 for as long as Tawnos's Weaponry remains tapped.

When war machines became too costly, Tawnos's Weaponry replaced them.

White Mana Battery

Artifact

, : Put a charge counter on White Mana Battery.

, Remove any number of charge counters from White Mana Battery: Add to your mana pool, then add an additional to your mana pool for each charge counter removed this way.

Ashnod's Altar

Artifact

Sacrifice a creature: Add to your mana pool.

The Brothers' War scarred the land, but Ashnod left her mark in the bloodlines of those she tortured.

Ashnod's Transmogrant

Artifact

, Sacrifice Ashnod's Transmogrant: Put a +1/+1 counter on target nonartifact creature. That creature becomes an artifact in addition to its other types.

Ashnod found few willing to trade their humanity for the power she offered.

Barbed Sextant

Artifact

, , Sacrifice Barbed Sextant: Add one mana of any color to your mana pool. Draw a card at the beginning of the next turn's upkeep.

Barl's Cage

Artifact

: Target creature doesn't untap during its controller's next untap step.

For a dozen years the cage had held Lord Ith, but as the Pretender Mairsil's power weakened, so did the bars.

Crown of the Ages

Artifact

, : Attach target Aura attached to a creature to another creature.

Elkin Bottle

Artifact

, : Exile the top card of your library. Until the beginning of your next upkeep, you may play that card.

Feldon's Cane

Artifact

, Exile Feldon's Cane: Shuffle your graveyard into your library.

Feldon found the first of these canes frozen in the Ronom Glacier.

Feroz's Ban

Artifact

Creature spells cost more to cast.

"Without the protection of Feroz's Ban, I fear the Homelands are lost."
-Daria

Gauntlets of Chaos

Artifact

, Sacrifice Gauntlets of Chaos: Exchange control of target artifact, creature, or land you control and target permanent an opponent controls that shares one of those types with it. If those permanents are exchanged this way, destroy all Auras attached to them.

Infinite Hourglass

Artifact

At the beginning of your upkeep, put a time counter on Infinite Hourglass.

All creatures get +1/+0 for each time counter on Infinite Hourglass.

: Remove a time counter from Infinite Hourglass. Any player may activate this ability but only during any upkeep step.

Jalum Tome

Artifact

, : Draw a card, then discard a card.

This timeworn relic was responsible for many of Urza's victories, though he never fully comprehended its mystic runes.

Joven's Tools

Artifact

, : Target creature can't be blocked this turn except by Walls.

"If that thief Joven ever shows his head around here again, make sure he leaves without it."
-Eron the Relentless

Obelisk of Undoing

Artifact

, : Return target permanent you both own and control to your hand.

The Battle of Tomakul taught Urza not to rely on fickle reinforcements.