The List

Aether Spellbomb

Aether Spellbomb {1}

Artifact
{U}, Sacrifice this artifact: Return target creature to its owner's hand.
{1}, Sacrifice this artifact: Draw a card.
"Release that which was never caged."
—Spellbomb inscription
Paradise Mantle

Paradise Mantle {0}

Artifact - Equipment
Equipped creature has "{T}: Add one mana of any color."
Equip {1}
"It contains the wisdom of generations of our people. We permit only a chosen few to don the raiment."
—Imran, Viridian elder
Perilous Research

Perilous Research {1}{U}

Instant
Draw two cards, then sacrifice a permanent.
When the School of the Unseen fell, so many magical treasures lay abandoned that no amount of death could deter the stream of thieves and desperate scholars.
Mad Auntie

Mad Auntie {2}{B}

Creature - Goblin Shaman
Other Goblin creatures you control get +1/+1.
{T}: Regenerate another target Goblin.
One part cunning, one part wise, and many, many parts demented.
2/2
Soothsaying

Soothsaying {U}

Enchantment
{3}{U}{U}: Shuffle your library.
{X}: Look at the top X cards of your library, then put them back in any order.
The vizier's wisdom proved invaluable in untangling the Mercadian knot of lies.
Stinging Barrier

Stinging Barrier {2}{U}{U}

Creature - Wall
Defender
{U}, {T}: This creature deals 1 damage to any target.
0/4
Thwart

Thwart {2}{U}{U}

Instant
You may return three Islands you control to their owner's hand rather than pay this spell's mana cost.
Counter target spell.
Trade Routes

Trade Routes {1}{U}

Enchantment
{1}: Return target land you control to its owner's hand.
{1}, Discard a land card: Draw a card.
Like the price of goods, the value of the routes was renegotiated daily.
Cackling Witch

Cackling Witch {1}{B}

Creature - Human Spellshaper
{X}{B}, {T}, Discard a card: Target creature gets +X/+0 until end of turn.
The touch of his madness can drive anyone into a killing frenzy.
1/1
Deepwood Legate

Deepwood Legate {3}{B}

Creature - Shade
If an opponent controls a Forest and you control a Swamp, you may cast this spell without paying its mana cost.
{B}: This creature gets +1/+1 until end of turn.
1/1
Primeval Shambler

Primeval Shambler {4}{B}

Creature - Horror Mercenary
{B}: This creature gets +1/+1 until end of turn.
His mind, like his body, is made up of the swamp's flotsam.
3/3
Sever Soul

Sever Soul {3}{B}{B}

Sorcery
Destroy target nonblack creature. It can't be regenerated. You gain life equal to its toughness.
"With the proper tools, even the Great River can be dammed."
—Ta-Spon, Cho-Arrim executioner
Crossbow Infantry

Crossbow Infantry {1}{W}

Creature - Human Soldier Archer
{T}: This creature deals 1 damage to target attacking or blocking creature.
The crossbow is the ideal weapon for the lazy Mercadians: just point and shoot.
1/1
Unmask

Unmask {3}{B}

Sorcery
You may exile a black card from your hand rather than pay this spell's mana cost.
Target player reveals their hand. You choose a nonland card from it. That player discards that card.
Devout Witness

Devout Witness {2}{W}

Creature - Human Spellshaper
{1}{W}, {T}, Discard a card: Destroy target artifact or enchantment.
The Cho-Arrim fought Mercadia's decadence with more than just swords.
2/2
Vendetta

Vendetta {B}

Instant
Destroy target nonblack creature. It can't be regenerated. You lose life equal to that creature's toughness.
Starke knew the voice was Takara's, but the venom was Volrath's.
Arms Dealer

Arms Dealer {2}{R}

Creature - Goblin Rogue
{1}{R}, Sacrifice a Goblin: This creature deals 4 damage to target creature.
He has the weapons, he has the connections, and he knows the hangar's dark secret.
1/1
Cave Sense

Cave Sense {1}{R}

Enchantment - Aura
Enchant creature
Enchanted creature gets +1/+1 and has mountainwalk.
Ceremonial Guard

Ceremonial Guard {2}{R}

Creature - Human Soldier
When this creature attacks or blocks, destroy it at end of combat.
"These guards are the most disciplined military unit in the city. They couldn't fight their way out of a broom closet, but they've got discipline."
—Gerrard, to Sisay
3/4
Fountain Watch

Fountain Watch {3}{W}{W}

Creature - Human Cleric
Artifacts and enchantments you control have shroud.
The Cho-Arrim didn't rely only on a secret location to protect their Fountain.
2/4
Hammer Mage

Hammer Mage {1}{R}

Creature - Human Spellshaper
{X}{R}, {T}, Discard a card: Destroy all artifacts with mana value X or less.
When he's holding the hammers, everything looks like a nail.
1/1
Kyren Negotiations

Kyren Negotiations {2}{R}{R}

Enchantment
Tap an untapped creature you control: This enchantment deals 1 damage to target player or planeswalker.
Kyren goblins always speak in questions and never allow wrong answers.
Mercadia's Downfall

Mercadia's Downfall {2}{R}

Instant
Each attacking creature gets +1/+0 until end of turn for each nonbasic land defending player controls.
With an explosion that shook the foundation of the city, the Weatherlight burst from the underground hangar.
Puppet's Verdict

Puppet's Verdict {1}{R}{R}

Instant
Flip a coin. If you win the flip, destroy all creatures with power 2 or less. If you lose the flip, destroy all creatures with power 3 or greater.
"What was heads again?"
—Mercadian magistrate
Thieves' Auction

Thieves' Auction {4}{R}{R}{R}

Sorcery
Exile all nontoken permanents. Starting with you, each player chooses one of the exiled cards and puts it onto the battlefield tapped under their control. Repeat this process until all cards exiled this way have been chosen.