Svyelun of Sea and Sky (Commander) - Expensive Core

Svyelun of Sea and Sky
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Background image for 21 Best Merfolk Cards for Commander
Chris Guest
Jul 9, 2025
Chris Guest
21 Best Merfolk Cards for Commander
As one of Magic's oldest creature types, there are no shortage of excellent Merfolk to brew with. Chris breaks down the best of the best in this list.
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Master of the Pearl Trident
100%inclusion15 decks15 decks
98%synergy
Emperor Mihail II
93%inclusion14 decks15 decks
92%synergy
Lord of Atlantis
93%inclusion14 decks15 decks
92%synergy
Seafloor Oracle
93%inclusion14 decks15 decks
92%synergy
Kopala, Warden of Waves
93%inclusion14 decks15 decks
92%synergy
Vodalian Hexcatcher
93%inclusion14 decks15 decks
92%synergy
Merrow Reejerey
93%inclusion14 decks15 decks
92%synergy
Merfolk Sovereign
93%inclusion14 decks15 decks
92%synergy
Stonybrook Banneret
93%inclusion14 decks15 decks
90%synergy
Mist Dancer
87%inclusion13 decks15 decks
86%synergy
Top Cards
Deeproot Pilgrimage
87%inclusion13 decks15 decks
85%synergy
Sapphire Medallion
87%inclusion13 decks15 decks
30%synergy
Thieving Skydiver
80%inclusion12 decks15 decks
76%synergy
Kindred Discovery
80%inclusion12 decks15 decks
73%synergy
Reflections of Littjara
80%inclusion12 decks15 decks
76%synergy
Deeproot Waters
80%inclusion12 decks15 decks
79%synergy
Counterspell
80%inclusion12 decks15 decks
13%synergy
Harbinger of the Tides
73%inclusion11 decks15 decks
72%synergy
Merrow Commerce
73%inclusion11 decks15 decks
72%synergy
Merfolk Trickster
73%inclusion11 decks15 decks
72%synergy
Game Changers
Rhystic Study
13%inclusion2 decks15 decks
-21%synergy
Cyclonic Rift
13%inclusion2 decks15 decks
-22%synergy
Thassa's Oracle
6.7%inclusion1 decks15 decks
-7%synergy
Fierce Guardianship
6.7%inclusion1 decks15 decks
-17%synergy
Mystical Tutor
6.7%inclusion1 decks15 decks
-18%synergy
Creatures
Tishana's Tidebinder
67%inclusion10 decks15 decks
62%synergy
Merrow Harbinger
67%inclusion10 decks15 decks
66%synergy
Coralhelm Commander
60%inclusion9 decks15 decks
59%synergy
Mist-Cloaked Herald
60%inclusion9 decks15 decks
58%synergy
Lullmage Mentor
60%inclusion9 decks15 decks
58%synergy
Tide Shaper
60%inclusion9 decks15 decks
59%synergy
Triton Shorestalker
53%inclusion8 decks15 decks
51%synergy
Thada Adel, Acquisitor
53%inclusion8 decks15 decks
51%synergy
Wake Thrasher
53%inclusion8 decks15 decks
53%synergy
Deepchannel Mentor
53%inclusion8 decks15 decks
52%synergy
Silvergill Adept
53%inclusion8 decks15 decks
53%synergy
Summon: Leviathan
50%inclusion4 decks8 decks
48%synergy
Tempest Caller
47%inclusion7 decks15 decks
46%synergy
Mindspring Merfolk
45%inclusion5 decks11 decks
45%synergy
True-Name Nemesis
40%inclusion6 decks15 decks
39%synergy
Cursecatcher
40%inclusion6 decks15 decks
38%synergy
Metallic Mimic
33%inclusion5 decks15 decks
32%synergy
Master of Waves
33%inclusion5 decks15 decks
29%synergy
Stormtide Leviathan
33%inclusion5 decks15 decks
26%synergy
Roaming Throne
33%inclusion5 decks15 decks
29%synergy
Floodpits Drowner
33%inclusion4 decks12 decks
32%synergy
Wanderwine Prophets
33%inclusion5 decks15 decks
33%synergy
Kiora, the Rising Tide
33%inclusion4 decks12 decks
30%synergy
Alandra, Sky Dreamer
33%inclusion5 decks15 decks
27%synergy
Glasspool Mimic
33%inclusion5 decks15 decks
27%synergy
Sea Scryer
33%inclusion5 decks15 decks
32%synergy
Cosi's Trickster
27%inclusion4 decks15 decks
26%synergy
Rishadan Dockhand
27%inclusion4 decks15 decks
26%synergy
Streambed Aquitects
27%inclusion4 decks15 decks
26%synergy
Seahunter
27%inclusion4 decks15 decks
26%synergy
Surgespanner
27%inclusion4 decks15 decks
26%synergy
Enduring Curiosity
25%inclusion3 decks12 decks
19%synergy
Harbinger of the Seas
21%inclusion3 decks14 decks
12%synergy
Eluge, the Shoreless Sea
21%inclusion3 decks14 decks
13%synergy
Talrand, Sky Summoner
20%inclusion3 decks15 decks
6%synergy
Phantasmal Image
20%inclusion3 decks15 decks
14%synergy
River Sneak
20%inclusion3 decks15 decks
19%synergy
Mistcaller
20%inclusion3 decks15 decks
19%synergy
Empress Galina
20%inclusion3 decks15 decks
19%synergy
Library Larcenist
20%inclusion3 decks15 decks
19%synergy
Merfolk Looter
13%inclusion2 decks15 decks
11%synergy
Brineborn Cutthroat
13%inclusion2 decks15 decks
13%synergy
Wonder
13%inclusion2 decks15 decks
8%synergy
Adaptive Automaton
13%inclusion2 decks15 decks
12%synergy
Silvergill Douser
13%inclusion2 decks15 decks
13%synergy
Umara Wizard
13%inclusion2 decks15 decks
13%synergy
Slinn Voda, the Rising Deep
13%inclusion2 decks15 decks
12%synergy
Tidal Warrior
13%inclusion2 decks15 decks
13%synergy
Vodalian Illusionist
13%inclusion2 decks15 decks
13%synergy
Enclave Cryptologist
13%inclusion2 decks15 decks
13%synergy
Instants
Pongify
67%inclusion10 decks15 decks
26%synergy
High Tide
53%inclusion8 decks15 decks
9%synergy
Rapid Hybridization
47%inclusion7 decks15 decks
12%synergy
Flare of Denial
43%inclusion6 decks14 decks
36%synergy
Swan Song
40%inclusion6 decks15 decks
14%synergy
An Offer You Can't Refuse
40%inclusion6 decks15 decks
4%synergy
Sink into Stupor
36%inclusion5 decks14 decks
15%synergy
Reality Shift
33%inclusion5 decks15 decks
5%synergy
Mana Drain
33%inclusion5 decks15 decks
6%synergy
Aetherize
33%inclusion5 decks15 decks
6%synergy
Resculpt
33%inclusion5 decks15 decks
14%synergy
Arcane Denial
33%inclusion5 decks15 decks
-3%synergy
Three Steps Ahead
29%inclusion4 decks14 decks
19%synergy
Cryptic Command
27%inclusion4 decks15 decks
15%synergy
March of Swirling Mist
27%inclusion4 decks15 decks
18%synergy
Negate
20%inclusion3 decks15 decks
-19%synergy
Polymorphist's Jest
20%inclusion3 decks15 decks
19%synergy
Archmage's Charm
20%inclusion3 decks15 decks
4%synergy
Divert Disaster
17%inclusion1 decks6 decks
14%synergy
Opt
13%inclusion2 decks15 decks
-12%synergy
Flow of Knowledge
13%inclusion2 decks15 decks
-3%synergy
Muddle the Mixture
13%inclusion2 decks15 decks
-3%synergy
Sublime Epiphany
13%inclusion2 decks15 decks
7%synergy
Force of Negation
13%inclusion2 decks15 decks
-2%synergy
Thassa's Rebuff
13%inclusion2 decks15 decks
12%synergy
Narset's Reversal
13%inclusion2 decks15 decks
1%synergy
Fact or Fiction
13%inclusion2 decks15 decks
3%synergy
Filter Out
13%inclusion2 decks15 decks
9%synergy
Abjure
13%inclusion2 decks15 decks
9%synergy
Evacuation
13%inclusion2 decks15 decks
6%synergy
Into the Flood Maw
7.1%inclusion1 decks14 decks
2%synergy
Long River's Pull
7.1%inclusion1 decks14 decks
3%synergy
Disdainful Stroke
6.7%inclusion1 decks15 decks
1%synergy
Familiar's Ruse
6.7%inclusion1 decks15 decks
6%synergy
Meeting of Minds
6.7%inclusion1 decks15 decks
3%synergy
Jwari Disruption
6.7%inclusion1 decks15 decks
2%synergy
Engulf the Shore
6.7%inclusion1 decks15 decks
-2%synergy
Didn't Say Please
6.7%inclusion1 decks15 decks
2%synergy
Mystic Confluence
6.7%inclusion1 decks15 decks
-3%synergy
Mental Misstep
6.7%inclusion1 decks15 decks
0%synergy
Slip Out the Back
6.7%inclusion1 decks15 decks
-1%synergy
Gale's Redirection
6.7%inclusion1 decks15 decks
6%synergy
Snap
6.7%inclusion1 decks15 decks
-11%synergy
Commandeer
6.7%inclusion1 decks15 decks
2%synergy
Thirst for Discovery
6.7%inclusion1 decks15 decks
0%synergy
Aetherspouts
6.7%inclusion1 decks15 decks
-1%synergy
Mystic Reflection
6.7%inclusion1 decks15 decks
5%synergy
Dispel
6.7%inclusion1 decks15 decks
-3%synergy
Flusterstorm
6.7%inclusion1 decks15 decks
-3%synergy
Disallow
6.7%inclusion1 decks15 decks
0%synergy
Sorceries
Distant Melody
47%inclusion7 decks15 decks
42%synergy
Raise the Palisade
47%inclusion7 decks15 decks
44%synergy
Aquitect's Will
40%inclusion6 decks15 decks
35%synergy
Spectral Deluge
40%inclusion6 decks15 decks
29%synergy
Curse of the Swine
27%inclusion4 decks15 decks
15%synergy
Sea Gate Restoration
27%inclusion4 decks15 decks
12%synergy
Ravenform
20%inclusion3 decks15 decks
10%synergy
Inundate
20%inclusion3 decks15 decks
18%synergy
Fabricate
13%inclusion2 decks15 decks
-9%synergy
Chart a Course
13%inclusion2 decks15 decks
9%synergy
Crashing Tide
13%inclusion2 decks15 decks
13%synergy
Lórien Revealed
13%inclusion2 decks15 decks
4%synergy
Rite of Replication
13%inclusion2 decks15 decks
7%synergy
Ponder
6.7%inclusion1 decks15 decks
-23%synergy
Introduction to Annihilation
6.7%inclusion1 decks15 decks
7%synergy
Expropriate
6.7%inclusion1 decks15 decks
3%synergy
Windfall
6.7%inclusion1 decks15 decks
-17%synergy
Sakashima's Will
6.7%inclusion1 decks15 decks
5%synergy
Preordain
6.7%inclusion1 decks15 decks
-18%synergy
Nanogene Conversion
6.7%inclusion1 decks15 decks
5%synergy
Flow of Ideas
6.7%inclusion1 decks15 decks
2%synergy
Maddening Cacophony
6.7%inclusion1 decks15 decks
-1%synergy
Whelming Wave
6.7%inclusion1 decks15 decks
2%synergy
Replication Technique
6.7%inclusion1 decks15 decks
6%synergy
Consuming Tide
6.7%inclusion1 decks15 decks
3%synergy
Utility Artifacts
Bident of Thassa
73%inclusion11 decks15 decks
62%synergy
Door of Destinies
40%inclusion6 decks15 decks
39%synergy
Kefnet's Monument
40%inclusion6 decks15 decks
33%synergy
Vanquisher's Banner
40%inclusion6 decks15 decks
39%synergy
Banner of Kinship
33%inclusion4 decks12 decks
31%synergy
Lightning Greaves
33%inclusion5 decks15 decks
7%synergy
Herald's Horn
33%inclusion5 decks15 decks
31%synergy
Sword of the Animist
27%inclusion4 decks15 decks
21%synergy
Swiftfoot Boots
27%inclusion4 decks15 decks
-1%synergy
Quicksilver Fountain
20%inclusion3 decks15 decks
18%synergy
Coat of Arms
20%inclusion3 decks15 decks
18%synergy
Commander's Plate
20%inclusion3 decks15 decks
16%synergy
Wayfarer's Bauble
13%inclusion2 decks15 decks
-5%synergy
Sword of Feast and Famine
13%inclusion2 decks15 decks
12%synergy
Aether Vial
13%inclusion2 decks15 decks
13%synergy
Buster Sword
13%inclusion1 decks8 decks
12%synergy
The Water Crystal
13%inclusion1 decks8 decks
2%synergy
Genji Glove
13%inclusion1 decks8 decks
11%synergy
Lavaspur Boots
7.1%inclusion1 decks14 decks
5%synergy
Quietus Spike
6.7%inclusion1 decks15 decks
6%synergy
Bitterthorn, Nissa's Animus
6.7%inclusion1 decks15 decks
5%synergy
Bloodforged Battle-Axe
6.7%inclusion1 decks15 decks
6%synergy
Shadowspear
6.7%inclusion1 decks15 decks
5%synergy
Sting, the Glinting Dagger
6.7%inclusion1 decks15 decks
5%synergy
Horn of the Mark
6.7%inclusion1 decks15 decks
7%synergy
Sword of Forge and Frontier
6.7%inclusion1 decks15 decks
6%synergy
Sword of Sinew and Steel
6.7%inclusion1 decks15 decks
6%synergy
Strionic Resonator
6.7%inclusion1 decks15 decks
4%synergy
Blackblade Reforged
6.7%inclusion1 decks15 decks
2%synergy
Sword of Light and Shadow
6.7%inclusion1 decks15 decks
6%synergy
Sword of Once and Future
6.7%inclusion1 decks15 decks
6%synergy
Skullclamp
6.7%inclusion1 decks15 decks
1%synergy
Pyre of Heroes
6.7%inclusion1 decks15 decks
6%synergy
Heirloom Blade
6.7%inclusion1 decks15 decks
7%synergy
Stoneforge Masterwork
6.7%inclusion1 decks15 decks
6%synergy
Sword of Hearth and Home
6.7%inclusion1 decks15 decks
5%synergy
Sword of War and Peace
6.7%inclusion1 decks15 decks
6%synergy
Azor's Gateway
6.7%inclusion1 decks15 decks
6%synergy
Obelisk of Urd
6.7%inclusion1 decks15 decks
6%synergy
Basilisk Collar
6.7%inclusion1 decks15 decks
6%synergy
Sword of Body and Mind
6.7%inclusion1 decks15 decks
6%synergy
The Indomitable
6.7%inclusion1 decks15 decks
4%synergy
Sword of Fire and Ice
6.7%inclusion1 decks15 decks
6%synergy
Sunstone
6.7%inclusion1 decks15 decks
7%synergy
Akroma's Memorial
6.7%inclusion1 decks15 decks
5%synergy
Urza's Incubator
6.7%inclusion1 decks15 decks
5%synergy
Hammer of Nazahn
6.7%inclusion1 decks15 decks
5%synergy
Throne of the God-Pharaoh
6.7%inclusion1 decks15 decks
6%synergy
Enchantments
Mystic Remora
27%inclusion4 decks15 decks
-1%synergy
Propaganda
27%inclusion4 decks15 decks
-2%synergy
Leyline of Anticipation
27%inclusion4 decks15 decks
17%synergy
Spreading Seas
27%inclusion4 decks15 decks
26%synergy
Reconnaissance Mission
27%inclusion4 decks15 decks
20%synergy
Imprisoned in the Moon
20%inclusion3 decks15 decks
8%synergy
Wizard Class
20%inclusion3 decks15 decks
4%synergy
Intruder Alarm
20%inclusion3 decks15 decks
17%synergy
Coastal Piracy
20%inclusion3 decks15 decks
16%synergy
Amphibian Downpour
14%inclusion2 decks14 decks
9%synergy
Eaten by Piranhas
13%inclusion2 decks15 decks
10%synergy
Military Intelligence
13%inclusion2 decks15 decks
12%synergy
Witness Protection
13%inclusion2 decks15 decks
7%synergy
Sea's Claim
13%inclusion2 decks15 decks
13%synergy
Aquatic Incursion
13%inclusion2 decks15 decks
13%synergy
Unable to Scream
8.3%inclusion1 decks12 decks
4%synergy
Curiosity
6.7%inclusion1 decks15 decks
4%synergy
Aqueous Form
6.7%inclusion1 decks15 decks
2%synergy
Court of Vantress
6.7%inclusion1 decks15 decks
5%synergy
Ichthyomorphosis
6.7%inclusion1 decks15 decks
6%synergy
As Foretold
6.7%inclusion1 decks15 decks
2%synergy
Teferi's Ageless Insight
6.7%inclusion1 decks15 decks
-10%synergy
Opposition
6.7%inclusion1 decks15 decks
6%synergy
Dress Down
6.7%inclusion1 decks15 decks
4%synergy
Combat Research
6.7%inclusion1 decks15 decks
4%synergy
Utility Lands
Three Tree City
86%inclusion12 decks14 decks
82%synergy
Nykthos, Shrine to Nyx
67%inclusion10 decks15 decks
51%synergy
Reliquary Tower
60%inclusion9 decks15 decks
4%synergy
Mystic Sanctuary
53%inclusion8 decks15 decks
2%synergy
Otawara, Soaring City
53%inclusion8 decks15 decks
28%synergy
Rogue's Passage
33%inclusion5 decks15 decks
18%synergy
War Room
33%inclusion5 decks15 decks
17%synergy
Minamo, School at Water's Edge
27%inclusion4 decks15 decks
15%synergy
Halimar Depths
27%inclusion4 decks15 decks
16%synergy
Scavenger Grounds
27%inclusion4 decks15 decks
19%synergy
Castle Vantress
27%inclusion4 decks15 decks
7%synergy
Sunken Palace
21%inclusion3 decks14 decks
17%synergy
Rivendell
20%inclusion3 decks15 decks
8%synergy
Wasteland
13%inclusion2 decks15 decks
12%synergy
Lonely Sandbar
13%inclusion2 decks15 decks
-1%synergy
Command Beacon
6.7%inclusion1 decks15 decks
3%synergy
Cephalid Coliseum
6.7%inclusion1 decks15 decks
-2%synergy
Access Tunnel
6.7%inclusion1 decks15 decks
5%synergy
Remote Isle
6.7%inclusion1 decks15 decks
1%synergy
Hidden Cataract
6.7%inclusion1 decks15 decks
5%synergy
Throne of the High City
6.7%inclusion1 decks15 decks
7%synergy
Strip Mine
6.7%inclusion1 decks15 decks
4%synergy
Isolated Watchtower
6.7%inclusion1 decks15 decks
6%synergy
Riptide Laboratory
6.7%inclusion1 decks15 decks
-4%synergy
Desert of the Mindful
6.7%inclusion1 decks15 decks
3%synergy
Svyelunite Temple
6.7%inclusion1 decks15 decks
6%synergy
Cryptic Caves
6.7%inclusion1 decks15 decks
6%synergy
The Surgical Bay
6.7%inclusion1 decks15 decks
5%synergy
Mana Artifacts
Sol Ring
73%inclusion11 decks15 decks
-12%synergy
Patchwork Banner
64%inclusion9 decks14 decks
61%synergy
Arcane Signet
47%inclusion7 decks15 decks
-19%synergy
Heraldic Banner
40%inclusion6 decks15 decks
34%synergy
Thought Vessel
40%inclusion6 decks15 decks
-12%synergy
Throne of Eldraine
27%inclusion4 decks15 decks
17%synergy
Extraplanar Lens
13%inclusion2 decks15 decks
6%synergy
Caged Sun
13%inclusion2 decks15 decks
1%synergy
Mind Stone
13%inclusion2 decks15 decks
-24%synergy
Aetheric Amplifier
9.1%inclusion1 decks11 decks
8%synergy
Gauntlet of Power
6.7%inclusion1 decks15 decks
2%synergy
Lotus Petal
6.7%inclusion1 decks15 decks
-6%synergy
Progenitor's Icon
6.7%inclusion1 decks15 decks
6%synergy
Sceptre of Eternal Glory
6.7%inclusion1 decks15 decks
2%synergy
Everflowing Chalice
6.7%inclusion1 decks15 decks
-10%synergy
Sky Diamond
6.7%inclusion1 decks15 decks
-17%synergy
Fellwar Stone
6.7%inclusion1 decks15 decks
-13%synergy
Liquimetal Torque
6.7%inclusion1 decks15 decks
0%synergy
Nyx Lotus
6.7%inclusion1 decks15 decks
2%synergy
Midnight Clock
6.7%inclusion1 decks15 decks
-14%synergy
Lands
Island
93%inclusion14 decks15 decks
0%synergy
Path of Ancestry
40%inclusion6 decks15 decks
36%synergy
Cavern of Souls
40%inclusion6 decks15 decks
35%synergy
Sink into Stupor
36%inclusion5 decks14 decks
15%synergy
Glasspool Mimic
33%inclusion5 decks15 decks
27%synergy
Sea Gate Restoration
27%inclusion4 decks15 decks
12%synergy
Myriad Landscape
20%inclusion3 decks15 decks
-7%synergy
Demolition Field
13%inclusion2 decks15 decks
8%synergy
Evolving Wilds
13%inclusion2 decks15 decks
9%synergy
Flooded Strand
13%inclusion2 decks15 decks
5%synergy
Umara Wizard
13%inclusion2 decks15 decks
13%synergy
Scalding Tarn
13%inclusion2 decks15 decks
6%synergy
Urza's Cave
7.1%inclusion1 decks14 decks
3%synergy
Talon Gates of Madara
7.1%inclusion1 decks14 decks
4%synergy
Horizon of Progress
7.1%inclusion1 decks14 decks
6%synergy
Misty Rainforest
6.7%inclusion1 decks15 decks
-1%synergy
Gond Gate
6.7%inclusion1 decks15 decks
7%synergy
Snow-Covered Island
6.7%inclusion1 decks15 decks
-1%synergy
Jwari Disruption
6.7%inclusion1 decks15 decks
2%synergy
Plaza of Heroes
6.7%inclusion1 decks15 decks
6%synergy
Command Tower
6.7%inclusion1 decks15 decks
2%synergy
Fabled Passage
6.7%inclusion1 decks15 decks
4%synergy
Terramorphic Expanse
6.7%inclusion1 decks15 decks
4%synergy
Heap Gate
6.7%inclusion1 decks15 decks
7%synergy
Plaza of Harmony
6.7%inclusion1 decks15 decks
7%synergy
Silundi Vision
6.7%inclusion1 decks15 decks
1%synergy
Polluted Delta
6.7%inclusion1 decks15 decks
-1%synergy
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