The Brothers' War

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
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
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
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.
The Stasis Coffin

The Stasis Coffin {3}

Legendary Artifact
{2}, {T}, Exile The Stasis Coffin: You gain protection from everything until your next turn.
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.
Thran Spider

Thran Spider {3}

Artifact Creature - Spider
Reach
When this creature enters, you and target opponent each create a tapped Powerstone token.
{7}: Look at the top four cards of your library. You may reveal an artifact card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.
2/4
Related card: Thran Spider (Alchemy)
Blast Zone

Blast Zone

Land
This land enters with a charge counter on it.
{T}: Add {C}.
{X}{X}, {T}: Put X charge counters on this land.
{3}, {T}, Sacrifice this land: Destroy each nonland permanent with mana value equal to the number of charge counters on this land.
Fortified Beachhead

Fortified Beachhead

Land
As this land enters, you may reveal a Soldier card from your hand. This land enters tapped unless you revealed a Soldier card this way or you control a Soldier.
{T}: Add {W} or {U}.
{5}, {T}: Soldiers you control get +1/+1 until end of turn.
Hall of Tagsin

Hall of Tagsin

Land
{T}: Add {C}.
{1}, {T}: Add one mana of any color.
{4}, {T}: Create a tapped Powerstone token.
Related card: Hall of Tagsin (Alchemy)
Mishra's Foundry

Mishra's Foundry

Land
{T}: Add {C}.
{2}: This land becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land.
{1}, {T}: Target attacking Assembly-Worker gets +2/+2 until end of turn.
Related card: Foundry Groundbreaker
Rescue Retriever

Rescue Retriever {3}{W}{W}

Creature - Dog Soldier
Flash
When this creature enters, put a +1/+1 counter on each other Soldier you control.
Prevent all damage that would be dealt to other attacking Soldiers you control.
3/3
Geology Enthusiast

Geology Enthusiast {3}{U}{U}

Creature - Human Artificer
At the beginning of your end step, create a tapped Powerstone token.
{6}: Draw a card and put a +1/+1 counter on this creature.
2/5
Related card: Geology Enthusiast (Alchemy)
Terror Ballista

Terror Ballista {7}

Artifact Creature - Construct
Menace
Whenever this creature attacks, you may sacrifice another creature. When you do, destroy target creature an opponent controls.
Unearth {3}{B}{B}
5/3
Artificer's Dragon

Artificer's Dragon {6}

Artifact Creature - Dragon
Flying
{R}: Artifact creatures you control get +1/+0 until end of turn.
Unearth {3}{R}{R}
4/4
Woodcaller Automaton

Woodcaller Automaton {10}

Artifact Creature - Construct
Prototype {2}{G}{G} — 3/3
When this creature enters, if you cast it, untap target land you control. It becomes a Treefolk creature with haste and base power and toughness equal to this creature's power and toughness. It's still a land.
8/8
Mishra's Foundry

Mishra's Foundry

Land
{T}: Add {C}.
{2}: This land becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land.
{1}, {T}: Target attacking Assembly-Worker gets +2/+2 until end of turn.
Related card: Foundry Groundbreaker
Queen Kayla bin-Kroog

Queen Kayla bin-Kroog {1}{R}{W}

Legendary Creature - Human Noble
{4}, {T}: Discard all the cards in your hand, then draw that many cards. You may choose an artifact or creature card with mana value 1 you discarded this way, then do the same for artifact or creature cards with mana values 2 and 3. Return those cards to the battlefield. Activate only as a sorcery.
2/3
Lay Down Arms

Lay Down Arms {W}

Sorcery
Exile target creature with mana value less than or equal to the number of Plains you control. Its controller gains 3 life.
She'll swing a blade all her life, but never again for war.
Flow of Knowledge

Flow of Knowledge {4}{U}

Instant
Draw a card for each Island you control, then discard two cards.
"Focus your mind. Do you hold a piece of the ocean or a thousand drops of rain?"
—Hurkyl
Corrupt

Corrupt {5}{B}

Sorcery
Corrupt deals damage to any target equal to the number of Swamps you control. You gain life equal to the damage dealt this way.
"Most wise, most thoughtful, most powerful qadir," said the Gixian, "we offer whatever help we may give in your illustrious name."
Sardian Cliffstomper

Sardian Cliffstomper {1}{R}

Creature - Minotaur Barbarian
As long as it's your turn and you control four or more Mountains, this creature gets +X/+0, where X is the number of Mountains you control.
When Urza betrayed the Sardian dwarves, they called upon the might of their neighbors for aid.
0/4
Blanchwood Armor

Blanchwood Armor {2}{G}

Enchantment - Aura
Enchant creature
Enchanted creature gets +1/+1 for each Forest you control.
Some armor is forged, some is forested.