Mantis Engine

{2}: This creature gains flying until end of turn. (It can't be blocked except by creatures with flying or reach.)
{2}: This creature gains first strike until end of turn. (It deals combat damage before creatures without first strike.)

Word of Undoing

Return target creature and all white Auras you own attached to it to their owners' hands.

Thran Foundry

{1}, {T}, Exile this artifact: Target player shuffles their graveyard into their library.

Power Armor

Domain — {3}, {T}: Target creature gets +1/+1 until end of turn for each basic land type among lands you control.

Thran Lens

Second Chance

At the beginning of your upkeep, if you have 5 or less life, sacrifice this enchantment and take an extra turn after this one.

Wall of Junk

Defender (This creature can't attack.)
When this creature blocks, return it to its owner's hand at end of combat. (Return it only if it's on the battlefield.)

Obelisk of Undoing

{6}, {T}: Return target permanent you both own and control to your hand.

Psychic Battle

Whenever a player chooses one or more targets, each player reveals the top card of their library. The player who reveals the card with the greatest mana value may change the target or targets. If two or more cards are tied for greatest, the target or targets remain unchanged. Changing targets this way doesn't trigger abilities of permanents named Psychic Battle.

Urza's Armor

If a source would deal damage to you, prevent 1 of that damage.

Yotian Soldier

Urza's Avenger

{0}: This creature 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.)

Memory Jar

{T}, Sacrifice this artifact: Each player exiles all cards from their hand face down and draws seven cards. At the beginning of the next end step, each player discards their hand and returns to their hand each card they exiled this way.

Whalebone Glider

{2}, {T}: Target creature with power 3 or less gains flying until end of turn.

Urza's Factory

{T}: Add {C}.
{7}, {T}: Create a 2/2 colorless Assembly-Worker artifact creature token.

Distant Memories

Search your library for a card, exile it, then shuffle. Any opponent may have you put that card into your hand. If no player does, you draw three cards.

Urza's Chalice

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

Urza's Mine

{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.

Thran Golem

As long as this creature is enchanted, it gets +2/+2 and has flying, first strike, and trample.

Strip Mine

{T}: Add {C}.
{T}, Sacrifice this land: Destroy target land.

Beast of Burden

Beast of Burden's power and toughness are each equal to the number of creatures on the battlefield.

Mana Maze

Players can't cast spells that share a color with the spell most recently cast this turn.

Illuminated Wings

Enchant creature
Enchanted creature has flying.
{2}, Sacrifice this Aura: Draw a card.

Extruder

Echo {4} (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.)
Sacrifice an artifact: Put a +1/+1 counter on target creature.

Urza's Incubator

As this artifact enters, choose a creature type.
Creature spells of the chosen type cost {2} less to cast.

Grapeshot Catapult

{T}: This creature deals 1 damage to target creature with flying.

Onulet

When this creature dies, you gain 2 life.

Amulet of Kroog

{2}, {T}: Prevent the next 1 damage that would be dealt to any target this turn.

Hermetic Study

Enchant creature
Enchanted creature has "{T}: This creature deals 1 damage to any target."

Metathran Soldier

Rescue

Return target permanent you control to its owner's hand.

Rakalite

{2}: Prevent the next 1 damage that would be dealt to any target this turn. Return this artifact to its owner's hand at the beginning of the next end step.

Urza's Engine

Trample
{3}: This creature 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.)
{3}: Attacking creatures banded with this creature gain trample until end of turn.

Glasses of Urza

Opportunity

Tawnos's Weaponry

You may choose not to untap this artifact during your untap step.
{2}, {T}: Target creature gets +1/+1 for as long as this artifact remains tapped.

Confound

Counter target spell that targets a creature.
Draw a card.

Tablet of Epityr

Whenever an artifact you control is put into a graveyard from the battlefield, you may pay {1}. If you do, you gain 1 life.

Mind Over Matter

Discard a card: You may tap or untap target artifact, creature, or land.

Well-Laid Plans

Prevent all damage that would be dealt to a creature by another creature if they share a color.

Chromatic Sphere

{1}, {T}, Sacrifice this artifact: Add one mana of any color. Draw a card.

Urza's Tower

{T}: Add {C}. If you control an Urza's Mine and an Urza's Power-Plant, add {C}{C}{C} instead.

Thran Dynamo

Jalum Tome

{2}, {T}: Draw a card, then discard a card.

Urza's Power Plant

{T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead.

Clay Statue

Thran Turbine

At the beginning of your upkeep, you may add {C}{C}. You can't spend this mana to cast spells.

Disrupt

Counter target instant or sorcery spell unless its controller pays {1}.
Draw a card.

Blizzard Elemental

Stroke of Genius

Thieving Magpie

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever this creature deals damage to an opponent, draw a card.

Urza's Bauble

{T}, Sacrifice this artifact: Look at a card at random in target player's hand. You draw a card at the beginning of the next turn's upkeep.

Mental Discipline

Urza's Miter

Whenever an artifact you control is put into a graveyard from the battlefield, if it wasn't sacrificed, you may pay {3}. If you do, draw a card.

Blind Seer

{1}{U}: Target spell or permanent becomes the color of your choice until end of turn.

Opposition

Tap an untapped creature you control: Tap target artifact, creature, or land.

Island

Ornithopter

Attunement

Return this enchantment to its owner's hand: Draw three cards, then discard four cards.

Gainsay

Urza's Blueprints

Echo {6} (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.)
{T}: Draw a card.