Svyelun of Sea and Sky art

Art by Seb McKinnon

Saved commander deck

Svyelun of Sea and Sky

Overwhelm opponents with low-cost Merfolk lords while using Islandwalk enablers like Spreading Seas to guarantee unblockable attacks, backed by efficient counterspells and protective Merfolk abilities.

100 cards$178.91 totalAug 1, 20261 views

Prompt: Merfolk tribal deck in blue: merfolk lords and unblockable effects, winning through evasion rather than size, with counterspell backup.

Buy Whole Deck on Mana Pool →Build Another

Commander

1 cards
Svyelun of Sea and Sky

Svyelun of Sea and Sky

{1}{U}{U}

Legendary Creature — Merfolk God

Chosen commander for the requested strategy.

Ramp

9 cards
Sol Ring

Sol Ring

{1}

Artifact

essential commander mana acceleration

Arcane Signet

Arcane Signet

{2}

Artifact

efficient early colored mana acceleration

Sky Diamond

Sky Diamond

{2}

Artifact

budget blue mana rock

Thought Vessel

Thought Vessel

{2}

Artifact

mana rock that provides unlimited hand size

Mind Stone

Mind Stone

{2}

Artifact

mana rock that can cycle for a card later

Heraldic Banner

Heraldic Banner

{3}

Artifact

mana rock that buffs all blue Merfolk power

Sapphire Medallion

Sapphire Medallion

{2}

Artifact

reduces the cost of all blue spells

Wayfarer's Bauble

Wayfarer's Bauble

{1}

Artifact

fetches a basic Island to the battlefield

Patchwork Banner

Patchwork Banner

{3}

Artifact

tribal mana rock that pumps Merfolk

Card Draw

10 cards
Distant Melody

Distant Melody

{3}{U}

Sorcery

refills hand based on Merfolk count

Kindred Discovery

Kindred Discovery

{3}{U}{U}

Enchantment

draws cards on Merfolk entering and attacking

Bident of Thassa

Bident of Thassa

{2}{U}{U}

Legendary Enchantment Artifact

rewards unblockable attacks with massive card draw

Reconnaissance Mission

Reconnaissance Mission

{2}{U}{U}

Enchantment

draws a card whenever a creature deals combat damage

Silvergill Adept

Silvergill Adept

{1}{U}

Creature — Merfolk Wizard

cheap Merfolk body that cantrips on entry

Benthic Biomancer

Benthic Biomancer

{U}

Creature — Merfolk Wizard Mutant

cheap Merfolk that loots when receiving counters

Emperor Mihail II

Emperor Mihail II

{1}{U}{U}

Legendary Creature — Merfolk Noble

allows playing Merfolk from top of library and tokens

Ponder

Ponder

{U}

Sorcery

cheap cantrip to smooth out early draws

Preordain

Preordain

{U}

Sorcery

efficient filter and draw spell

Brainstorm

Brainstorm

{U}

Instant

instant speed hand manipulation and filtering

Removal

9 cards
Rapid Hybridization

Rapid Hybridization

{U}

Instant

one-mana instant creature destruction

Pongify

Pongify

{U}

Instant

cheap instant speed single-target removal

Reality Shift

Reality Shift

{1}{U}

Instant

cheap exile effect for problematic threat creatures

Resculpt

Resculpt

{1}{U}

Instant

flexible exile for creatures or artifacts

Curse of the Swine

Curse of the Swine

{X}{U}{U}

Sorcery

mass exile for multiple threatening creatures

Imprisoned in the Moon

Imprisoned in the Moon

{2}{U}

Enchantment — Aura

shuts down problematic commanders or nonland permanents

Cyclonic Rift

Cyclonic Rift

{1}{U}

Instant

premier asymmetric board wipe in blue

Aetherize

Aetherize

{3}{U}

Instant

defensive blow-out against incoming attacks

Into the Roil

Into the Roil

{1}{U}

Instant

flexible bounce spell that can cantrip

Threats/Wincons

24 cards
Lord of Atlantis

Lord of Atlantis

{U}{U}

Creature — Merfolk

classic Merfolk lord granting +1/+1 and Islandwalk

Master of the Pearl Trident

Master of the Pearl Trident

{U}{U}

Creature — Merfolk

essential Merfolk lord granting +1/+1 and Islandwalk

Merrow Reejerey

Merrow Reejerey

{2}{U}

Creature — Merfolk Soldier

lord that untaps or taps permanents when playing Merfolk

Vodalian Hexcatcher

Vodalian Hexcatcher

{1}{U}

Creature — Merfolk Wizard

flash lord that turns Merfolk into sacrifice counterspells

Coralhelm Commander

Coralhelm Commander

{U}{U}

Creature — Merfolk Soldier

leveler that becomes a flying Merfolk lord

Merfolk Sovereign

Merfolk Sovereign

{1}{U}{U}

Creature — Merfolk Noble

lord that can make a target Merfolk unblockable

Kopala, Warden of Waves

Kopala, Warden of Waves

{1}{U}{U}

Legendary Creature — Merfolk Wizard

taxes spells and abilities that target your Merfolk

Merfolk Trickster

Merfolk Trickster

{U}{U}

Creature — Merfolk Wizard

flash creature that taps an opponent's threat and removes abilities

Stonybrook Banneret

Stonybrook Banneret

{1}{U}

Creature — Merfolk Wizard

reduces the mana cost of all Merfolk

Tishana's Tidebinder

Tishana's Tidebinder

{2}{U}

Creature — Merfolk Wizard

flash Merfolk that counters activated/triggered abilities

True-Name Nemesis

True-Name Nemesis

{1}{U}{U}

Creature — Merfolk Rogue

completely unblockable and indestructible threat against one player

Deepchannel Mentor

Deepchannel Mentor

{5}{U}

Creature — Merfolk Rogue

makes all blue creatures completely unblockable

Master of Waves

Master of Waves

{3}{U}

Creature — Merfolk Wizard

generates massive armies of tokens based on blue devotion

Cursecatcher

Cursecatcher

{U}

Creature — Merfolk Wizard

1-drop Merfolk that taxes opponent noncreature spells

Streambed Aquitects

Streambed Aquitects

{1}{U}{U}

Creature — Merfolk Scout

turns an opponent land into an Island to enable Islandwalk

Tidebinder Mage

Tidebinder Mage

{U}{U}

Creature — Merfolk Wizard

locks down red or green creatures on entry

Harbinger of the Tides

Harbinger of the Tides

{U}{U}

Creature — Merfolk Wizard

bounces tapped creatures and can be cast with flash

Mistcaller

Mistcaller

{U}

Creature — Merfolk Wizard

stops opponents from cheating creatures into play

Seafloor Oracle

Seafloor Oracle

{2}{U}{U}

Creature — Merfolk Wizard

draws cards when Merfolk deal combat damage

Tide Shaper

Tide Shaper

{U}

Creature — Merfolk Wizard

kicker Merfolk that transforms an opponent land into an Island

Lullmage Mentor

Lullmage Mentor

{1}{U}{U}

Creature — Merfolk Wizard

creates Merfolk tokens whenever you counter a spell

Merfolk Cave-Diver

Merfolk Cave-Diver

{2}{U}

Creature — Merfolk Scout

gains power and unblockable through exploring

Rootwater Thief

Rootwater Thief

{1}{U}

Creature — Merfolk Rogue

flying Merfolk that strips win conditions from opponent decks

Thada Adel, Acquisitor

Thada Adel, Acquisitor

{1}{U}{U}

Legendary Creature — Merfolk Rogue

has Islandwalk and steals artifacts from opponents

Utility

10 cards
Counterspell

Counterspell

{U}{U}

Instant

classic efficient two-mana hard counter

Negate

Negate

{1}{U}

Instant

cheap counterspell for noncreature spells and board wipes

Arcane Denial

Arcane Denial

{1}{U}

Instant

unconditional counterspell that draws you cards

An Offer You Can't Refuse

An Offer You Can't Refuse

{U}

Instant

one-mana noncreature counterspell

Swan Song

Swan Song

{U}

Instant

efficient one-mana counter for spells targeting your board

Aquitect's Will

Aquitect's Will

{U}

Kindred Sorcery — Merfolk

puts flood counters on opponent lands to trigger Islandwalk

Herald's Horn

Herald's Horn

{3}

Artifact

reduces Merfolk costs and offers top-deck card draw

Reflections of Littjara

Reflections of Littjara

{4}{U}

Enchantment

copies every Merfolk spell cast

Roaming Throne

Roaming Throne

{4}

Artifact Creature — Golem

doubles all Merfolk triggered abilities

Spreading Seas

Spreading Seas

{1}{U}

Enchantment — Aura

cantripping enchantment that turns an opponent land into an Island

Lands

37 cards
Reliquary Tower

Reliquary Tower

Land

No maximum hand size.

War Room

War Room

Land

Card draw from the mana base.

Rogue's Passage

Rogue's Passage

Land

Makes a creature unblockable.

Temple of the False God

Temple of the False God

Land

Extra mana in the late game.

Mystic Sanctuary

Mystic Sanctuary

Land — Island

Recurs an instant or sorcery.

Castle Vantress

Castle Vantress

Land

Mono-color utility land.

Island

Island 31x

Basic Land — Island

Basic land allocated from mana pip counts.