In a space where there is no room, in a structure that was never built, meets the guild that doesn't exist.

Duskmantle, House of Shadow

{T}: Add {C}.
{U}{B}, {T}: Target player mills a card.

Dimir Aqueduct

This land enters tapped.
When this land enters, return a land you control to its owner's hand.
{T}: Add {U}{B}.

Watery Grave

({T}: Add {U} or {B}.)
As this land enters, you may pay 2 life. If you don't, it enters tapped.

None can tell how many vessels are tangled up on the sea floor—or how much treasure remains unclaimed.

Drowned Catacomb

This land enters tapped unless you control an Island or a Swamp.
{T}: Add {U} or {B}.

Murky Otarian tides hide the forgotten treacheries of the Phyrexian war.

Darkwater Catacombs

On the continent of Tazeem, rushing waters plunge through narrow canyons into mist-cloaked lakes.

Sunken Hollow

({T}: Add {U} or {B}.)
This land enters tapped unless you control two or more basic lands.

Temple of Deceit

This land enters tapped.
When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.)
{T}: Add {U} or {B}.

Choked Estuary

As this land enters, you may reveal an Island or Swamp card from your hand. If you don't, this land enters tapped.
{T}: Add {U} or {B}.

Myriad Landscape

This land enters tapped.
{T}: Add {C}.
{2}, {T}, Sacrifice this land: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

Bojuka Bog

This land enters tapped.
When this land enters, exile target player's graveyard.
{T}: Add {B}.

Once guarded by the Knights of the Reliquary, the tower stands now protected only by its own remoteness, its dusty treasures open to plunder by anyone.

Reliquary Tower

You have no maximum hand size.
{T}: Add {C}.

Opal Palace

{T}: Add {C}.
{1}, {T}: Add one mana of any color in your commander's color identity. If you spend this mana to cast your commander, it enters with a number of additional +1/+1 counters on it equal to the number of times it's been cast from the command zone this game.

"It's me and Gribble's special fort. None of the bad things can get us in there."
—Toby

Command Tower

{T}: Add one mana of any color in your commander's color identity.

Enter and become a mastermind of spies, lies, and deception.

Dimir Guildgate

This land enters tapped.
{T}: Add {U} or {B}.

Jwar Isle Refuge

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {U} or {B}.

Where curiosity meets cruelty, hideous innovations arise.

Darkslick Shores

This land enters tapped unless you control two or fewer other lands.
{T}: Add {U} or {B}.

"The war polluted the land, turning what had once been fruitful fields into fetid morasses of mud and rusted corpses."
—*The Antiquities War*

Underground River

{T}: Add {C}.
{T}: Add {U} or {B}. This land deals 1 damage to you.

Halimar Depths

This land enters tapped.
When this land enters, look at the top three cards of your library, then put them back in any order.
{T}: Add {U}.

"Some see a coastal disaster. I see a fully-stocked seagraf."
—Jadar, ghoulcaller of Nephalia

Nephalia Drownyard

{T}: Add {C}.
{1}{U}{B}, {T}: Target player mills three cards.

"Yawgmoth's corpse is a wound in the universe. His foul blood seeps out, infecting the land with his final curse."
—Lord Windgrace

Urborg, Tomb of Yawgmoth

Each land is a Swamp in addition to its other land types.

Rumors quickly spread among thieves about a labyrinth without walls and a prize beyond all measures of worth.

Rogue's Passage

{T}: Add {C}.
{4}, {T}: Target creature can't be blocked this turn.

"Our world is vast, but Thraben is its heart. The cathedral must stand even if the hinterlands are lost."
—Thalia, Knight-Cathar

Evolving Wilds

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

The House's geography constantly warps and twists, fields melting into floorboards and walls opening into hungry maws.

Terramorphic Expanse

Island

Swamp

Without Locthwain's persistence, the realm would stagnate and die.

Castle Locthwain

This land enters tapped unless you control a Swamp.
{T}: Add {B}.
{1}{B}{B}, {T}: Draw a card, then you lose life equal to the number of cards in your hand.

Otawara, Soaring City

{T}: Add {U}.
Channel — {3}{U}, Discard this card: Return target artifact, creature, enchantment, or planeswalker to its owner's hand. This ability costs {1} less to activate for each legendary creature you control.

Path of Ancestry

This land enters tapped.
{T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Tainted Isle

{T}: Add {C}.
{T}: Add {U} or {B}. Activate only if you control a Swamp.

"It was a strange morning. When we awoke, we found our trees transformed. We didn't know whether to water them or polish them."
—Pulan, Bant orchardist

Exotic Orchard

{T}: Add one mana of any color that a land an opponent controls could produce.

"The Westfolk wept, and their tears wore winding rivers into the cheek of the world."
—Glem the Lonebard, "Origins of Kholon"

River of Tears

{T}: Add {U}. If you played a land this turn, add {B} instead.

Consuming Aberration

Consuming Aberration's power and toughness are each equal to the number of cards in your opponents' graveyards.
Whenever you cast a spell, each opponent reveals cards from the top of their library until they reveal a land card, then puts those cards into their graveyard.

Phenax, God of Deception

Indestructible
As long as your devotion to blue and black is less than seven, Phenax isn't a creature.
Creatures you control have "{T}: Target player mills X cards, where X is this creature's toughness."

Geth, Lord of the Vault

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)
{X}{B}: Put target artifact or creature card with mana value X from an opponent's graveyard onto the battlefield under your control tapped. Then that player mills X cards.

Wrexial, the Risen Deep

Islandwalk, swampwalk (This creature can't be blocked as long as defending player controls an Island or a Swamp.)
Whenever Wrexial deals combat damage to a player, you may cast target instant or sorcery card from that player's graveyard without paying its mana cost. If that spell would be put into a graveyard, exile it instead.

Hedrons perplex minds both great and small.

Hedron Crab

Landfall — Whenever a land you control enters, target player mills three cards.

Jace, Memory Adept

+1: Draw a card. Target player mills a card.
0: Target player mills ten cards.
−7: Any number of target players each draw twenty cards.

Lazav, Dimir Mastermind

Hexproof
Whenever a creature card is put into an opponent's graveyard from anywhere, you may have Lazav become a copy of that card, except its name is Lazav, Dimir Mastermind, it's legendary in addition to its other types, and it has hexproof and this ability.

Ashiok, Nightmare Weaver

+2: Exile the top three cards of target opponent's library.
−X: Put a creature card with mana value X exiled with Ashiok onto the battlefield under your control. That creature is a Nightmare in addition to its other types.
−10: Exile all cards from all opponents' hands and graveyards.

Mirko Vosk, Mind Drinker

Flying
Whenever Mirko Vosk deals combat damage to a player, that player reveals cards from the top of their library until they reveal four land cards, then puts those cards into their graveyard.

Szadek, Lord of Secrets

Flying
If Szadek would deal combat damage to a player, instead put that many +1/+1 counters on Szadek and that player mills that many cards.

Duskmantle Guildmage

{1}{U}{B}: Whenever a card is put into an opponent's graveyard from anywhere this turn, that player loses 1 life.
{2}{U}{B}: Target player mills two cards.

Words describing it fail. Pages relating it shrivel. Tales recounting it end.

Nemesis of Reason

Whenever this creature attacks, defending player mills ten cards.

Sewer Nemesis

As this creature enters, choose a player.
Sewer Nemesis's power and toughness are each equal to the number of cards in the chosen player's graveyard.
Whenever the chosen player casts a spell, that player mills a card.

"To break another's mind is to deliver a fate worse than death. It is a terrifying power."
—Jace Beleren

Psychic Corrosion

Whenever you draw a card, each opponent mills two cards.

Mind Grind

Each opponent reveals cards from the top of their library until they reveal X land cards, then puts all cards revealed this way into their graveyard. X can't be 0.

"The soul is only as eternal as I say it is."
—Sharuum the Hegemon

Mind Funeral

Target opponent reveals cards from the top of their library until four land cards are revealed. That player puts all cards revealed this way into their graveyard.

"I am confident that if anyone actually penetrates our facades, even the most perceptive would still be fundamentally unprepared for the truth of House Dimir."
—Szadek

Glimpse the Unthinkable

He was left with just enough memory to understand what he had lost.

Traumatize

Target player mills half their library, rounded down.

Archive Trap

If an opponent searched their library this turn, you may pay {0} rather than pay this spell's mana cost.
Target opponent mills thirteen cards.

"You should try to clear your mind of idle thoughts. And if you can't, I will."

Jace's Erasure

Whenever you draw a card, you may have target player mill a card.

Supplicants offer flesh and silver, flowers and blood. The altar takes what it will, eyes gleaming with unspoken promises.

Altar of the Brood

Whenever another permanent you control enters, each opponent mills a card.

Bloodchief Ascension

At the beginning of each end step, if an opponent lost 2 or more life this turn, you may put a quest counter on this enchantment. (Damage causes loss of life.)
Whenever a card is put into an opponent's graveyard from anywhere, if this enchantment has three or more quest counters on it, you may have that player lose 2 life. If you do, you gain 2 life.

The book shrieks horribly until its cover is opened, granting the spirit inside a moment's rest from the painful stirrings of the book's contents.

Geth's Grimoire

Whenever an opponent discards a card, you may draw a card.

"The Filigree Texts do not compel you to act in accordance with their precepts. They only specify the consequences should you fail."
—Lodus of the Ethersworn

Memory Erosion

Whenever an opponent casts a spell, that player mills two cards.

"Let go of your memories and be reborn."
—Argent Etchings, plate 106, passage 27

Mindcrank

Whenever an opponent loses life, that player mills that many cards. (Damage causes loss of life.)

An emblem of a secret guild, the Dimir insignia is seen only by its own members—and the doomed.

Dimir Signet

Talisman of Dominance

{T}: Add {C}.
{T}: Add {U} or {B}. This artifact deals 1 damage to you.

"Wear this, and take your place among the shadows—wise, lethal, and unseen."
—Ivrelya, Dimir spymaster

Dimir Locket

{T}: Add {U} or {B}.
{U/B}{U/B}{U/B}{U/B}, {T}, Sacrifice this artifact: Draw two cards.

Infinite possibilities contained in a finite space.

Thought Vessel

"We have barely begun to learn the secrets of the Fourth People. Every remnant of their presence, however cryptic, is a gift."
—Akal Pakal, First Steward of Oteclan

Mind Stone

{T}: Add {C}.
{1}, {T}, Sacrifice this artifact: Draw a card.

"I use maps to find out where explorers have already been. Then I go the other way."
—Javad Nasrin, Ondu relic hunter

Expedition Map

{2}, {T}, Sacrifice this artifact: Search your library for a land card, reveal it, put it into your hand, then shuffle.

Sometimes safety is a place. Sometimes it's a person. Sometimes it's a tangible reminder that even in darkness, hope persists.

Arcane Signet

Dimir Keyrune

{T}: Add {U} or {B}.
{U}{B}: This artifact becomes a 2/2 blue and black Horror artifact creature until end of turn and can't be blocked this turn.

"Her voice is insight, piercing and true."
—Ixidor, reality sculptor

Dreamborn Muse

At the beginning of each player's upkeep, that player mills X cards, where X is the number of cards in their hand.

In the abstract memories of the Iquati, Jace found interesting ideas to improve upon.

Jace's Phantasm

Flying
This creature gets +4/+4 as long as an opponent has ten or more cards in their graveyard.

Manic Scribe

When this creature enters, each opponent mills three cards.
Delirium — At the beginning of each opponent's upkeep, if there are four or more card types among cards in your graveyard, that player mills three cards.

Siren of the Silent Song

Flying
Inspired — Whenever this creature becomes untapped, each opponent discards a card, then each opponent mills a card.

Thieves' Guild Enforcer

Flash
Whenever this creature or another Rogue you control enters, each opponent mills two cards.
As long as an opponent has eight or more cards in their graveyard, this creature gets +2/+1 and has deathtouch.

Even the lost and undead need a protector.

Wight of Precinct Six

This creature gets +1/+1 for each creature card in your opponents' graveyards.

The battalion thought they could escape the fog by marching in a straight line. Three days later, they began to suspect it was following them.

Fog Bank

Defender (This creature can't attack.)
Flying
Prevent all combat damage that would be dealt to and dealt by this creature.

Those who intrude upon the Dimir seldom remember that they have done so.

Wall of Lost Thoughts

Defender (This creature can't attack.)
When this creature enters, target player mills four cards. (They put the top four cards of their library into their graveyard.)

"I welcome it. The pasture is cleared of weeds and the wolves are frozen solid."
—Lumi, goatherd

Wall of Frost

Defender
Whenever this creature blocks a creature, that creature doesn't untap during its controller's next untap step.

Slitherwisp

Flash
Whenever you cast another spell that has flash, you draw a card and each opponent loses 1 life.

"There is no future save the one my master wills."

Augur of Bolas

When this creature enters, look at the top three cards of your library. You may reveal an instant or sorcery card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Sanitarium Skeleton

{2}{B}: Return this card from your graveyard to your hand.

Aether Syphon

Start your engines! (If you have no speed, it starts at 1. It increases once on each of your turns when an opponent loses life. Max speed is 4.)
{2}, {T}: Draw a card.
Max speed — Whenever you draw a card, each opponent mills two cards. (Each opponent puts the top two cards of their library into their graveyard.)

Opening Orazca unleashed more horrors than just the Immortal Sun.

Ravenous Chupacabra

When this creature enters, destroy target creature an opponent controls.

When you spend most of your time running for your life, it pays to invest in quality footwear.

Lightning Greaves

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)
Equip {0}

Grazilaxx, Illithid Scholar

Whenever a creature you control becomes blocked, you may return it to its owner's hand.
Whenever one or more creatures you control deal combat damage to a player, draw a card.

Stage 3: The steaming jungles of Muraganda under falling skies.

Muraganda Raceway

Start your engines! (If you have no speed, it starts at 1. It increases once on each of your turns when an opponent loses life. Max speed is 4.)
{T}: Add {C}.
Max speed — {T}: Add {C}{C}.

Jace knew that if he just had time to explain his plan, he would find support. Unfortunately, time was in short supply.

Unstoppable Plan

At the beginning of your end step, untap all nonland permanents you control.

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