Unclaimed Territory

As Unclaimed Territory enters the battlefield, 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.

"Approach my tower on bended knee or depart from it as ash upon the wind."
—Gadwick, the Wizened

Command Tower

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

Halimar Depths

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

Lonely Sandbar

Lonely Sandbar enters the battlefield tapped.
{T}: Add {U}.
Cycling {U} ({U}, Discard this card: Draw a card.)

Faerie Conclave

Faerie Conclave enters the battlefield tapped.
{T}: Add {U}.
{1}{U}: Faerie Conclave becomes a 2/1 blue Faerie creature with flying until end of turn. It's still a land.

Island

Coral Atoll

Coral Atoll enters the battlefield tapped.
When Coral Atoll enters the battlefield, sacrifice it unless you return an untapped Island you control to its owner's hand.
{T}: Add {C}{U}.

Desert of the Mindful

Desert of the Mindful enters the battlefield tapped.
{T}: Add {U}.
Cycling {1}{U} ({1}{U}, Discard this card: Draw a card.)

Working with the best of intentions, its researchers unwittingly unleashed a plague of troubles upon Dominaria.

Riptide Laboratory

{T}: Add {C}.
{1}{U}, {T}: Return target Wizard you control to its owner's hand.

Without Vantress's knowledge, the realm would lose itself in darkness.

Castle Vantress

Castle Vantress enters the battlefield tapped unless you control an Island.
{T}: Add {U}.
{2}{U}{U}, {T}: Scry 2.

Those who bring nothing to the temple take nothing away.

Temple of the False God

{T}: Add {C}{C}. Activate only if you control five or more lands.

Memorial to Genius

Memorial to Genius enters the battlefield tapped.
{T}: Add {U}.
{4}{U}, {T}, Sacrifice Memorial to Genius: Draw two cards.

Path of Ancestry

Path of Ancestry enters the battlefield 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 of your library.)

Myriad Landscape

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

"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 Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Take two steps north into the unsettled future, south into the unquiet past, east into the present day, or west into the great unknown.

Terramorphic Expanse

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

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 the battlefield 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.

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.

"Be like the sea: flow around that which is unmovable; for everything else, crash into it unrelentingly."

Merfolk Sovereign

Other Merfolk creatures you control get +1/+1.
{T}: Target Merfolk creature can't be blocked this turn.

Merfolk don't always know what they're looking for, but they're certain once they find it.

Merfolk Looter

Saved from destruction by one planeswalker's sacrifice, the Eliterate colony forswore the taking of life.

Merfolk Trickster

Flash
When Merfolk Trickster enters the battlefield, tap target creature an opponent controls. It loses all abilities until end of turn.

"If you keep to the shallows, you'll never learn the secrets of the depths."

Silvergill Adept

As an additional cost to cast this spell, reveal a Merfolk card from your hand or pay {3}.
When Silvergill Adept enters the battlefield, draw a card.

Where the light falls dim and blue on broken ships, secrets lie unclaimed.

Seafloor Oracle

Whenever a Merfolk you control deals combat damage to a player, draw a card.

Deeproot Waters

Merfolk

A visit to the Deeproot Tree and its ancient spring replenishes a merfolk's connection to nature.

Whenever you cast a Merfolk spell, create a 1/1 blue Merfolk creature token with hexproof. (A creature with hexproof can't be the target of spells or abilities your opponents control.)

"You may want to hold your breath."
—Kellyg, merrow aquitect

Aquitect's Will

Put a flood counter on target land. That land is an Island in addition to its other types for as long as it has a flood counter on it. If you control a Merfolk, draw a card.

Memories of ages past are said to swim the minds of lounging fallowsages.

Fallowsage

Whenever Fallowsage becomes tapped, you may draw a card.

Made from trout scales and crawfish whiskers, merrows' shimmering banners flash in the water like lightning.

Stonybrook Banneret

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
Merfolk spells and Wizard spells you cast cost {1} less to cast.

The Silvergill school monitors traffic on the Lanes, ensuring that the riffraff don't interfere with travelers.

Silvergill Douser

{T}: Target creature gets -X/-0 until end of turn, where X is the number of Merfolk and/or Faeries you control.

"You can come back once you've learned some manners—and figured out how to reconstitute your physical forms."

Aetherize

Return all attacking creatures to their owner's hand.

Carefully following the thaumatic compass Bolas had given her, Vraska blundered straight into the River Heralds' trap.

River's Rebuke

Return all nonland permanents target player controls to their owner's hand.

"There's a hole in your plan."
—Noyan Dar, Tazeem lullmage

Spell Pierce

Counter target noncreature spell unless its controller pays {2}.

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.)

"Of all the things that can be stolen, opportunity is the most valuable."

Cursecatcher

Sacrifice Cursecatcher: Counter target instant or sorcery spell unless its controller pays {1}.

"Beauty to the eye does not always translate to the touch."
—Naimah, Femeref philosopher

Man-o'-War

When Man-o'-War enters the battlefield, return target creature to its owner's hand.

Tidal Courier

When Tidal Courier enters the battlefield, reveal the top four cards of your library. Put all Merfolk cards revealed this way into your hand and the rest on the bottom of your library in any order.
{3}{U}: Tidal Courier gains flying until end of turn.

Temporal Cascade

Choose one —
• Each player shuffles their hand and graveyard into their library.
• Each player draws seven cards.
Entwine {2} (Choose both if you pay the entwine cost.)

It started as a mere drop of water. The Magic Mirror crystallized it into much more.

Arcane Signet

"You're just one more pollutant to be removed from the sea."

Vodalian Hexcatcher

Flash
Other Merfolk you control get +1/+1.
Sacrifice a Merfolk: Counter target noncreature spell unless its controller pays {1}.

Teferi gave them time. Karn gave them a chance. But it was Melira who paid the ultimate price to free Ajani from Phyrexia's grasp.

Negate

Harbinger of the Tides

You may cast Harbinger of the Tides as though it had flash if you pay {2} more to cast it. (You may cast it any time you could cast an instant.)
When Harbinger of the Tides enters the battlefield, you may return target tapped creature an opponent controls to its owner's hand.

Streambed Aquitects

{T}: Target Merfolk creature gets +1/+1 and gains islandwalk until end of turn. (It can't be blocked as long as defending player controls an Island.)
{T}: Target land becomes an Island until end of turn.

"Who will miss you, drywalker? A wife? A child? Perhaps they will blame the sea for your fate, and teach future generations to stay far away from it."

Triton Shorestalker

Svyelun of Sea and Sky

Svyelun of Sea and Sky has indestructible as long as you control at least two other Merfolk.
Whenever Svyelun attacks, draw a card.
Other Merfolk you control have ward {1}. (Whenever another Merfolk you control becomes the target of a spell or ability an opponent controls, counter it unless that player pays {1}.)

Tempest Caller

When Tempest Caller enters the battlefield, tap all creatures target opponent controls.

"I can think of no greater punishment than answering your question in full."
—Lazav

Thought Collapse

Counter target spell. Its controller mills three cards.

"What is mana but possibility, an idea not yet given form?"
—Jhoira, master artificer

Mind Stone

{T}: Add {C}.
{1}, {T}, Sacrifice Mind Stone: Draw a card.

Callaphe, Beloved of the Sea

Callaphe's power is equal to your devotion to blue. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)
Creatures and enchantments you control have "Spells your opponents cast that target this permanent cost {1} more to cast."

Public access terminals around Towashi provide residents with up-to-date information on everything from traffic delays to hostile kami sightings.

Network Terminal

{T}: Add one mana of any color.
{1}, {T}, Tap another untapped artifact you control: Draw a card, then discard a card.

"I've known for a year that you would cast this exact spell, at this exact spot, at this exact time."
—Raffine

Disdainful Stroke

Counter target spell with mana value 4 or greater.

Aquatic Incursion

When Aquatic Incursion enters the battlefield, create two 1/1 blue Merfolk creature tokens with hexproof. (They can't be the targets of spells or abilities your opponents control.)
{3}{U}: Target Merfolk can't be blocked this turn.

Bird

Ravenform

Exile target artifact or creature. Its controller creates a 1/1 blue Bird creature token with flying.
Foretell {U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Thieving Skydiver

Kicker {X}. X can't be 0. (You may pay an additional {X} as you cast this spell.)
Flying
When Thieving Skydiver enters the battlefield, if it was kicked, gain control of target artifact with mana value X or less. If that artifact is an Equipment, attach it to Thieving Skydiver.

Claustrophobia

Enchant creature
When Claustrophobia enters the battlefield, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.

Watertrap Weaver

When Watertrap Weaver enters the battlefield, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.

Tidebinder Mage

When Tidebinder Mage enters the battlefield, tap target red or green creature an opponent controls. That creature doesn't untap during its controller's untap step for as long as you control Tidebinder Mage.

Ichthyomorphosis

Enchant creature
Enchanted creature loses all abilities and is a blue Fish with base power and toughness 0/1.

The Vodalian Empire tends to be insular. The scholarly Volshe caste are the exception, using education as an antidote to xenophobia.

Vodalian Arcanist

{T}: Add {C}. Spend this mana only to cast an instant or sorcery spell.

The tide of battle favors those who can swim.

Tidal Warrior

{T}: Target land becomes an Island until end of turn.

"What we call magic is nothing more than hope crystallized into a destination."
—Perisophia the philosopher

Traveler's Amulet

{1}, Sacrifice Traveler's Amulet: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

"Beware the merrows, whose envy and covetousness surpasses even that of the ravenous whirlpools where they dwell."
—*The Book of Other Folk*

Flow of Ideas

Midnight Clock

Rusko, Clockmaker

{T}: Add {U}.
{2}{U}: Put an hour counter on Midnight Clock.
At the beginning of each upkeep, put an hour counter on Midnight Clock.
When the twelfth hour counter is put on Midnight Clock, shuffle your hand and graveyard into your library, then draw seven cards. Exile Midnight Clock.

"I give them dreams so wondrous that they hesitate to return to the world of the conscious."
—Garild, merfolk mage

Sleep

Tap all creatures target player controls. Those creatures don't untap during that player's next untap step.

Alythos sat and stared blankly out over the glassy oceans of Nerono, trying in vain to remember what he knew he had forgotten.

Memory Drain

Tide Shaper

Kicker {1} (You may pay an additional {1} as you cast this spell.)
When Tide Shaper enters the battlefield, if it was kicked, target land becomes an Island for as long as Tide Shaper remains on the battlefield.
Tide Shaper gets +1/+1 as long as an opponent controls an Island.

Kapsho merfolk have infiltrated fortresses as remote as the desert citadel in Sunari in their relentless quest for arcane knowledge.

Scroll Thief

Whenever Scroll Thief deals combat damage to a player, draw a card.

To resist Thassa is to deny the rising tide.

Thassa's Rebuff

Counter target spell unless its controller pays {X}, where X is your devotion to blue. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)

Stormtide Leviathan

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
All lands are Islands in addition to their other types.
Creatures without flying or islandwalk can't attack.

In his hands, the wind can become a weapon or a means of escape.

Storm Sculptor

Storm Sculptor can't be blocked.
When Storm Sculptor enters the battlefield, return a creature you control to its owner's hand.

"The second mage learned to dissipate blasts of lightning. Threat and response: thus did the study of magic progress."
—Naban, dean of iteration

Wizard's Retort

This spell costs {1} less to cast if you control a Wizard.
Counter target spell.

"I said we should destroy the Eldrazi. Ugin wanted to return them to stasis. Ugin's arguments were . . . unconvincing."
—Jace Beleren

Dispel

The greatest treasure of the deep is an echo from above.

Salvager of Secrets

When Salvager of Secrets enters the battlefield, return target instant or sorcery card from your graveyard to your hand.

That gnat was still hovering by the venison, and now both looked delicious.

Frogify

Enchant creature
Enchanted creature loses all abilities and is a blue Frog creature with base power and toughness 1/1. (It loses all other card types and creature types.)

"It's as much of a trick of the mind as it is a trick of the eye."

Blur

Exile target creature you control, then return that card to the battlefield under its owner's control.
Draw a card.

"Grux, for the last time, you have to do more than simply shout 'Apply!' at the administrators."
—Pavil, admissions officer

Reject

Counter target creature or planeswalker spell unless its controller pays {3}. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

By the time a Consulate sanction becomes official, the renegade quicksmiths have already found a way to circumvent it.

Revolutionary Rebuff

Counter target nonartifact spell unless its controller pays {2}.

Drake

Talrand, Sky Summoner

"The seas are vast, but the skies are even more so. Why be content with one kingdom when I can rule them both?"

Whenever you cast an instant or sorcery spell, create a 2/2 blue Drake creature token with flying.

Crashing Tide

This spell has flash as long as you control a Merfolk.
Return target creature to its owner's hand.
Draw a card.

Stray into the Morkrut and it may rise to claim you.

Dreadwaters

Target player mills X cards, where X is the number of lands you control.

"The best denials are simply that: a beginning and end unchanged, a dream with no memory."

Rewind

Counter target spell. Untap up to four lands.

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