The Brothers' War

Urza, Lord Protector
Urza, Planeswalker

Urza, Lord Protector {1}{W}{U}

Legendary Creature - Human Artificer
Artifact, instant, and sorcery spells you cast cost {1} less to cast.
{7}: If you both own and control Urza, Lord Protector and an artifact named The Mightstone and Weakstone, exile them, then meld them into Urza, Planeswalker. Activate only as a sorcery.
2/4
Card has other part: Urza, Planeswalker
Related card: The Mightstone and Weakstone
Urza, Prince of Kroog

Urza, Prince of Kroog {2}{W}{U}

Legendary Creature - Human Artificer
Artifact creatures you control get +2/+2.
{6}: 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.
The prince consort was happy to let Yotia's coffers fund his extravagant research.
2/3
Yotian Dissident

Yotian Dissident {G}{W}

Creature - Human Artificer
Whenever an artifact you control enters, put a +1/+1 counter on target creature you control.
"I joined this war to protect my homeland, not to destroy someone else's."
1/1
Yotian Tactician

Yotian Tactician {2}{W}{U}

Creature - Human Soldier
Other Soldiers you control get +1/+1.
"Time for the Iron Alliance to remind the qadir's army how inhospitable the Sword Marches can be."
3/4
Bladecoil Serpent

Bladecoil Serpent {X}{6}

Artifact Creature - Serpent
When this creature enters, for each {U}{U} spent to cast it, draw a card.
When this creature enters, for each {B}{B} spent to cast it, each opponent discards a card.
When this creature enters, for each {R}{R} spent to cast it, it gets +1/+0 and gains trample and haste until end of turn.
5/4
Clay Champion

Clay Champion {X}{4}

Artifact Creature - Construct
This creature enters with three +1/+1 counters on it for each {G}{G} spent to cast it.
When this creature enters, choose up to two other target creatures you control. For each {W}{W} spent to cast this creature, put a +1/+1 counter on each of them.
2/2
Aeronaut's Wings

Aeronaut's Wings {2}

Artifact - Equipment
Equipped creature gets +1/+0 and has flying.
Equip {2}
Volunteers rarely questioned why the airborne battalion always seemed to be recruiting.
Argivian Avenger

Argivian Avenger {6}

Artifact Creature - Shapeshifter
{1}: Until end of turn, this creature gets -1/-1 and gains your choice of flying, vigilance, deathtouch, or haste.
Unable to settle on just one versatile being, Urza decided to create myriad adaptable machines.
5/5
Cityscape Leveler

Cityscape Leveler {8}

Artifact Creature - Construct
Trample
When you cast this spell and whenever this creature attacks, destroy up to one target nonland permanent. Its controller creates a tapped Powerstone token.
Unearth {8}
8/8
Energy Refractor

Energy Refractor {2}

Artifact
When this artifact enters, draw a card.
{2}: Add one mana of any color.
"Raw energy contains infinite possibility."
—Urza
Goblin Firebomb

Goblin Firebomb {1}

Artifact
Flash
{7}, {T}, Sacrifice this artifact: Destroy target permanent.
"And if this works, Tawnos is gonna let us build the full-sized version!"
—Tergel, goblin explosioneer
Levitating Statue

Levitating Statue {2}

Artifact
Flying
Whenever you cast a noncreature spell, put a +1/+1 counter on this artifact.
{2}: This artifact becomes a 1/1 Construct artifact creature until end of turn.
Liberator, Urza's Battlethopter

Liberator, Urza's Battlethopter {3}

Legendary Artifact Creature - Thopter
Flash
Flying
You may cast colorless spells and artifact spells as though they had flash.
Whenever you cast a spell, if the amount of mana spent to cast that spell is greater than Liberator's power, put a +1/+1 counter on Liberator.
1/2
The Mightstone and Weakstone
Urza, Planeswalker

The Mightstone and Weakstone {5}

Legendary Artifact - Powerstone
When The Mightstone and Weakstone enters, choose one —
• Draw two cards.
• Target creature gets -5/-5 until end of turn.
{T}: Add {C}{C}. This mana can't be spent to cast nonartifact spells.
Card has other part: Urza, Planeswalker
Related card: Urza, Lord Protector
Urza, Planeswalker
Urza, Lord Protector
The Mightstone and Weakstone

Urza, Planeswalker

Legendary Planeswalker - Urza
(Color indicator: Urza, Planeswalker is white and blue)
You may activate the loyalty abilities of Urza twice each turn rather than only once.
[+2]: Artifact, instant, and sorcery spells you cast this turn cost {2} 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.
Loyalty:
7
Card has other parts: Urza, Lord Protector The Mightstone and Weakstone
Mine Worker

Mine Worker {2}

Artifact Creature - Assembly-Worker
{T}: You gain 1 life. If you control creatures named Power Plant Worker and Tower Worker, you gain 3 life instead.
Following his hunger for knowledge and power from the past, Urza starved Dominaria's future.
2/1
Related cards: Power Plant Worker Tower Worker
Portal to Phyrexia

Portal to Phyrexia {9}

Artifact
When this artifact enters, each opponent sacrifices three creatures of their choice.
At the beginning of your upkeep, put target creature card from a graveyard onto the battlefield under your control. It's a Phyrexian in addition to its other types.
After five thousand years, the nightmare returned.
Power Plant Worker

Power Plant Worker {5}

Artifact Creature - Assembly-Worker
{3}: This creature gets +2/+2 until end of turn. If you control creatures named Mine Worker and Tower Worker, put two +1/+1 counters on this creature instead. Activate only once each turn.
Mechanical workers toiled away, tirelessly fueling the impossible.
4/4
Related cards: Mine Worker Tower Worker
Reconstructed Thopter

Reconstructed Thopter {3}

Artifact Creature - Thopter
Flying
Unearth {2}
From above, the brothers noticed strange glyphs etched into the desert sand.
2/1
Slagstone Refinery

Slagstone Refinery {4}

Artifact
Whenever this artifact or another nontoken artifact you control is put into a graveyard from the battlefield or is put into exile from the battlefield, create a tapped Powerstone token.
Spectrum Sentinel

Spectrum Sentinel {1}

Artifact Creature - Soldier
Protection from multicolored
Whenever a nonbasic land an opponent controls enters, you gain 1 life.
1/2
The Stasis Coffin

The Stasis Coffin {3}

Legendary Artifact
{2}, {T}, Exile The Stasis Coffin: You gain protection from everything until your next turn.
Tawnos built it to be absolutely impermeable to any force inside. Luckily it worked for any force outside as well.
Steel Exemplar

Steel Exemplar {5}

Artifact Creature - Wizard
Trample
This creature enters with two +1/+1 counters on it unless two or more colors of mana were spent to cast it.
Reports differed on whether the figure was an automaton or a mage, mostly because few who saw it survived.
4/4
The Stone Brain

The Stone Brain {2}

Legendary Artifact
{2}, {T}, Exile The Stone Brain: 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. Activate only as a sorcery.
Stone Retrieval Unit

Stone Retrieval Unit {4}

Artifact Creature - Construct
When this creature enters, create a tapped Powerstone token.
Automatons could be rebuilt. Powerstones could not.
2/3