A warped gateway that seeps toxins and malevolence into the waters around Towashi.

Polluted Delta

{T}, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

Watery Grave

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

No one really knows how deep the waters go beneath Undercity, nor what amorphous horrors lurk within.

Morphic Pool

Morphic Pool enters tapped unless you have two or more opponents.
{T}: Add {U} or {B}.

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

Drowned Catacomb

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

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

Sunken Hollow

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

"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.

Deep within the Cabal's vault, the Mirari pulsed like a dead sun—and its darkness radiated across Otaria.

Cabal Coffers

{2}, {T}: Add {B} for each Swamp you control.

Nykthos, Shrine to Nyx

{T}: Add {C}.
{2}, {T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)

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}.

There is no glory to be gained in the kingdom of the dead.
—Vec tomb inscription

Ancient Tomb

{T}: Add {C}{C}. Ancient Tomb deals 2 damage to you.

Underground Sea

Cavern of Souls

As Cavern of Souls enters, choose a creature type.
{T}: Add {C}.
{T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.

"There is much to learn here, but few can endure the ringing of the spires."
—Nulakam the Archivist

City of Brass

Whenever City of Brass becomes tapped, it deals 1 damage to you.
{T}: Add one mana of any color.

Five rivers encircle Theros, flowing with waters more ancient than the world itself.

Mana Confluence

{T}, Pay 1 life: Add one mana of any color.

Boseiju, Who Shelters All

Boseiju, Who Shelters All enters tapped.
{T}, Pay 2 life: Add {C}. If that mana is spent on an instant or sorcery spell, that spell can't be countered.

"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.

Gale stared into the pool and saw a stranger. The similarities were uncanny, but it was not him.

Reflecting Pool

{T}: Add one mana of any type that a land you control could produce.

Without the care of the tideshapers, the Lanes lie neglected. Some have flooded entire towns; others dried to cracked mud.

Sunken Ruins

{T}: Add {C}.
{U/B}, {T}: Add {U}{U}, {U}{B}, or {B}{B}.

Amid rumors of war, the third act of *The Absolution of the Guildpact* was quickly rewritten as a tragedy.

Thespian's Stage

{T}: Add {C}.
{2}, {T}: Thespian's Stage becomes a copy of target land, except it has this ability.

Marit Lage

Dark Depths

Dark Depths enters with ten ice counters on it.
{3}: Remove an ice counter from Dark Depths.
When Dark Depths has no ice counters on it, sacrifice it. If you do, create Marit Lage, a legendary 20/20 black Avatar creature token with flying and indestructible.

Swamp

Island

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.

Jace, Wielder of Mysteries

If you would draw a card while your library has no cards in it, you win the game instead.
+1: Target player mills two cards. Draw a card.
−8: Draw seven cards. Then if your library has no cards in it, you win the game.

Thassa's Oracle

When Thassa's Oracle enters, look at the top X cards of your library, where X is your devotion to blue. Put up to one of them on top of your library and the rest on the bottom of your library in a random order. If X is greater than or equal to the number of cards in your library, you win the game. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)

Demonic Consultation

Choose a card name. Exile the top six cards of your library, then reveal cards from the top of your library until you reveal a card with the chosen name. Put that card into your hand and exile all other cards revealed this way.

Those who expect betrayal at every turn are seldom disappointed.

Pact of Negation

Counter target spell.
At the beginning of your next upkeep, pay {3}{U}{U}. If you don't, you lose the game.

"Your artillery will burn itself out before I allow my focus to waver."

Force of Will

You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost.
Counter target spell.

Swan Song

Bird

"The most enlightened mages create beauty from violence."
—Medomai the Ageless

Counter target enchantment, instant, or sorcery spell. Its controller creates a 2/2 blue Bird creature token with flying.

Counterspell

The Izzet specialize in unnatural disaster.

Cyclonic Rift

Return target nonland permanent you don't control to its owner's hand.
Overload {6}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

The student searches the world for meaning. The master finds worlds of meaning in the search.

Mystical Tutor

Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.

Demonic Tutor

Search your library for a card, put that card into your hand, then shuffle.

True power is achieved through blood and sweat. But mostly blood.

Vampiric Tutor

Search your library for a card, then shuffle and put that card on top. You lose 2 life.

"It's a difficult task to quarantine a plague that moves with the clouds."
—Esara, healer adept

Toxic Deluge

As an additional cost to cast this spell, pay X life.
All creatures get -X/-X until end of turn.

Damnation

Destroy all creatures. They can't be regenerated.

Urza's metathran children were conceived, birthed, and nurtured by an integrated system of machines.

Thran Dynamo

"I'm not saying I'm sure it's a trap. I'm just saying it wasn't there yesterday and I'm pretty sure I heard it whisper my name. If you're so curious, you touch it."
—Angus, survivor scout

Sol Ring

Chrome Mox

Imprint — When Chrome Mox enters, you may exile a nonartifact, nonland card from your hand.
{T}: Add one mana of any of the exiled card's colors.

Mox Diamond

If Mox Diamond would enter, you may discard a land card instead. If you do, put Mox Diamond onto the battlefield. If you don't, put it into its owner's graveyard.
{T}: Add one mana of any color.

Talisman of Dominance

{T}: Add {C}.
{T}: Add {U} or {B}. Talisman of Dominance deals 1 damage to you.

"You serve Phyrexia. Your pieces would better serve Phyrexia elsewhere."
—Azax-Azog, the Demon Thane

Dismember

({B/P} can be paid with either {B} or 2 life.)
Target creature gets -5/-5 until end of turn.

Pongify

Some spellcrafting mistakes go on to become spells of their own.

Destroy target creature. It can't be regenerated. Its controller creates a 3/3 green Ape creature token.

Rapid Hybridization

Frog Lizard

"We've merged your life essence with that of several creatures at once. You're welcome."
—Speaker Trifon

Destroy target creature. It can't be regenerated. That creature's controller creates a 3/3 green Frog Lizard creature token.

"Knowledge is the universal currency of the Multiverse. It is power. It is freedom. It is possibility itself."

Thirst for Knowledge

Draw three cards. Then discard two cards unless you discard an artifact card.

"Slimefoot, I know I said I wanted to grow our repository of knowledge, but this isn't what I had in mind."

Fact or Fiction

Reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.

Mystic Remora

Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
Whenever an opponent casts a noncreature spell, you may draw a card unless that player pays {4}.

Rhystic Study

Archival Whorl

Friends teach what you want to know. Enemies teach what you *need* to know.

Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.

Necropotence

Skip your draw step.
Whenever you discard a card, exile that card from your graveyard.
Pay 1 life: Exile the top card of your library face down. Put that card into your hand at the beginning of your next end step.

Dark Confidant

At the beginning of your upkeep, reveal the top card of your library and put that card into your hand. You lose life equal to its mana value.

Jace, the Mind Sculptor

+2: Look at the top card of target player's library. You may put that card on the bottom of that player's library.
0: Draw three cards, then put two cards from your hand on top of your library in any order.
−1: Return target creature to its owner's hand.
−12: Exile all cards from target player's library, then that player shuffles their hand into their library.

Narset, Parter of Veils

Each opponent can't draw more than one card each turn.
−2: Look at the top four cards of your library. You may reveal a noncreature, nonland card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Ashiok, Dream Render

Spells and abilities your opponents control can't cause their controller to search their library.
−1: Target player mills four cards. Then exile each opponent's graveyard.

Dig Through Time

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)
Look at the top seven cards of your library. Put two of them into your hand and the rest on the bottom of your library in any order.

Countless delights drift on the surface while dark schemes run below.

Treasure Cruise

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)
Draw three cards.

Notion Thief

Flash
If an opponent would draw a card except the first one they draw in each of their draw steps, instead that player skips that draw and you draw a card.

Windfall

Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way.

Time Spiral

Exile Time Spiral. Each player shuffles their hand and graveyard into their library, then draws seven cards. You untap up to six lands.

"Let's do it again!"
—Squee, goblin cabin hand

Time Warp

Target player takes an extra turn after this one.

A spark of resistance against a tide of corruption.

Phyrexian Arena

At the beginning of your upkeep, you draw a card and you lose 1 life.

Necromancy

You may cast Necromancy as though it had flash. If you cast it any time a sorcery couldn't have been cast, the controller of the permanent it becomes sacrifices it at the beginning of the next cleanup step.
When Necromancy enters, if it's on the battlefield, it becomes an Aura with "enchant creature put onto the battlefield with Necromancy." Put target creature card from a graveyard onto the battlefield under your control and attach Necromancy to it. When Necromancy leaves the battlefield, that creature's controller sacrifices it.

Cracks in the facade of the House lead not to escape but to oblivion.

Leyline of the Void

If Leyline of the Void is in your opening hand, you may begin the game with it on the battlefield.
If a card would be put into an opponent's graveyard from anywhere, exile it instead.

Chains of Mephistopheles

If a player would draw a card except the first one they draw in each of their draw steps, that player discards a card instead. If the player discards a card this way, they draw a card. If the player doesn't discard a card this way, they mill a card.

Force of Despair

If it's not your turn, you may exile a black card from your hand rather than pay this spell's mana cost.
Destroy all creatures that entered this turn.

Lim-Dûl's Vault

Look at the top five cards of your library. As many times as you choose, you may pay 1 life, put those cards on the bottom of your library in any order, then look at the top five cards of your library. Then shuffle and put the last cards you looked at this way on top in any order.

A single lie unleashes a tide of disbelief.

Echoing Truth

Return target nonland permanent and all other permanents with the same name as that permanent to their owners' hands.

Flusterstorm

Counter target instant or sorcery spell unless its controller pays {1}.
Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

"Poor, lost mage. Your feet are on land, yet you're in over your head, aren't you?"

Mystical Dispute

This spell costs {2} less to cast if it targets a blue spell.
Counter target spell unless its controller pays {3}.

"As one, nature lifts its voice to tell you this: 'No.'"

Negate

The mizzium-sphere array drove her mind deep into the thought field, where only the rarest motes of genius may be plucked.

Brainstorm

Draw three cards, then put two cards from your hand on top of your library in any order.

"When you learn to read the tides of fate, it's easy to catch the outcomes you desire."

Ponder

Look at the top three cards of your library, then put them back in any order. You may shuffle.
Draw a card.

Preordain

Scry 2, then draw a card. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

"Any dream is a robust harvest. Still, I prefer the timeworn dreams, heavy with import, that haunt the obsessive mind."

Thoughtseize

Target player reveals their hand. You choose a nonland card from it. That player discards that card. You lose 2 life.

"Give of yourself, for *compleation* awaits the cleansed."
—Nokar, priest of Sheoldred

Duress

Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.

You will scream out your innermost secrets just to make it stop.

Inquisition of Kozilek

Target player reveals their hand. You choose a nonland card from it with mana value 3 or less. That player discards that card.

"My flesh holds no secrets, monster. The spirit of Mirrodin will fight on."
—Vy Covalt, Mirran resistance

Gitaxian Probe

({U/P} can be paid with either {U} or 2 life.)
Look at target player's hand.
Draw a card.

God-Eternal Kefnet

Flying
You may reveal the first card you draw each turn as you draw it. Whenever you reveal an instant or sorcery card this way, copy that card and you may cast the copy. That copy costs {2} less to cast.
When God-Eternal Kefnet dies or is put into exile from the battlefield, you may put it into its owner's library third from the top.

Part the Waterveil

Take an extra turn after this one. Exile Part the Waterveil.
Awaken 6—{6}{U}{U}{U} (If you cast this spell for {6}{U}{U}{U}, also put six +1/+1 counters on target land you control and it becomes a 0/0 Elemental creature with haste. It's still a land.)

Phantom Steed

Copy

Flash
When Phantom Steed enters, exile another target creature you control until Phantom Steed leaves the battlefield.
Whenever Phantom Steed attacks, create a tapped and attacking token that's a copy of the exiled card, except it's an Illusion in addition to its other types. Sacrifice that token at end of combat.

"I study the past to find hope for the future."

Scholar of the Ages

When Scholar of the Ages enters, return up to two target instant and/or sorcery cards from your graveyard to your hand.

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