Svyelun of Sea and Sky (Commander) - Upgraded Control

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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Reflections of Littjara
100%inclusion5 decks5 decks
97%synergy
Kindred Discovery
100%inclusion5 decks5 decks
93%synergy
Coralhelm Commander
80%inclusion4 decks5 decks
79%synergy
Empress Galina
80%inclusion4 decks5 decks
79%synergy
Emperor Mihail II
80%inclusion4 decks5 decks
79%synergy
Harbinger of the Tides
80%inclusion4 decks5 decks
79%synergy
Seafloor Oracle
80%inclusion4 decks5 decks
79%synergy
Lord of Atlantis
80%inclusion4 decks5 decks
79%synergy
Kopala, Warden of Waves
80%inclusion4 decks5 decks
79%synergy
Vodalian Hexcatcher
80%inclusion4 decks5 decks
78%synergy
Top Cards
Stonybrook Banneret
80%inclusion4 decks5 decks
76%synergy
Merfolk Sovereign
80%inclusion4 decks5 decks
78%synergy
Deeproot Pilgrimage
80%inclusion4 decks5 decks
78%synergy
Tishana's Tidebinder
80%inclusion4 decks5 decks
75%synergy
Merrow Reejerey
80%inclusion4 decks5 decks
78%synergy
Lullmage Mentor
80%inclusion4 decks5 decks
78%synergy
Master of the Pearl Trident
80%inclusion4 decks5 decks
78%synergy
Distant Melody
80%inclusion4 decks5 decks
75%synergy
Sapphire Medallion
80%inclusion4 decks5 decks
22%synergy
Thieving Skydiver
80%inclusion4 decks5 decks
76%synergy
Game Changers
Cyclonic Rift
60%inclusion3 decks5 decks
26%synergy
Rhystic Study
40%inclusion2 decks5 decks
7%synergy
Fierce Guardianship
40%inclusion2 decks5 decks
17%synergy
Force of Will
20%inclusion1 decks5 decks
3%synergy
Mystical Tutor
20%inclusion1 decks5 decks
-4%synergy
Creatures
Surgespanner
60%inclusion3 decks5 decks
59%synergy
Deepchannel Mentor
60%inclusion3 decks5 decks
59%synergy
Seahunter
60%inclusion3 decks5 decks
59%synergy
River Sneak
60%inclusion3 decks5 decks
59%synergy
Alandra, Sky Dreamer
60%inclusion3 decks5 decks
53%synergy
Thada Adel, Acquisitor
60%inclusion3 decks5 decks
58%synergy
Tempest Caller
60%inclusion3 decks5 decks
59%synergy
Mist Dancer
60%inclusion3 decks5 decks
59%synergy
Tide Shaper
60%inclusion3 decks5 decks
59%synergy
Wake Thrasher
60%inclusion3 decks5 decks
60%synergy
Merrow Harbinger
40%inclusion2 decks5 decks
39%synergy
Master of Waves
40%inclusion2 decks5 decks
36%synergy
True-Name Nemesis
40%inclusion2 decks5 decks
39%synergy
Metallic Mimic
40%inclusion2 decks5 decks
39%synergy
Sigil Tracer
40%inclusion2 decks5 decks
39%synergy
Streambed Aquitects
40%inclusion2 decks5 decks
39%synergy
Triton Shorestalker
40%inclusion2 decks5 decks
37%synergy
Mist-Cloaked Herald
40%inclusion2 decks5 decks
38%synergy
Slinn Voda, the Rising Deep
40%inclusion2 decks5 decks
39%synergy
Harbinger of the Seas
40%inclusion2 decks5 decks
31%synergy
Spark Double
40%inclusion2 decks5 decks
27%synergy
Cursecatcher
40%inclusion2 decks5 decks
38%synergy
Silvergill Adept
40%inclusion2 decks5 decks
39%synergy
Talrand, Sky Summoner
40%inclusion2 decks5 decks
26%synergy
Gray Harbor Merfolk
40%inclusion2 decks5 decks
40%synergy
Sea Scryer
40%inclusion2 decks5 decks
39%synergy
Merfolk Trickster
40%inclusion2 decks5 decks
39%synergy
Mindspring Merfolk
25%inclusion1 decks4 decks
24%synergy
Summon: Leviathan
25%inclusion1 decks4 decks
23%synergy
Stormtide Leviathan
20%inclusion1 decks5 decks
13%synergy
Seasinger
20%inclusion1 decks5 decks
20%synergy
Wonder
20%inclusion1 decks5 decks
15%synergy
Roaming Throne
20%inclusion1 decks5 decks
16%synergy
Cosi's Trickster
20%inclusion1 decks5 decks
19%synergy
Rishadan Dockhand
20%inclusion1 decks5 decks
19%synergy
Hydroelectric Specimen
20%inclusion1 decks5 decks
6%synergy
Kiora, the Rising Tide
20%inclusion1 decks5 decks
17%synergy
Merfolk Looter
20%inclusion1 decks5 decks
18%synergy
Thassa, God of the Sea
20%inclusion1 decks5 decks
16%synergy
Forensic Researcher
20%inclusion1 decks5 decks
19%synergy
Mistcaller
20%inclusion1 decks5 decks
19%synergy
Sakashima of a Thousand Faces
20%inclusion1 decks5 decks
14%synergy
Tidal Warrior
20%inclusion1 decks5 decks
19%synergy
Wanderwine Prophets
20%inclusion1 decks5 decks
19%synergy
Enduring Curiosity
20%inclusion1 decks5 decks
14%synergy
Benthic Biomancer
20%inclusion1 decks5 decks
19%synergy
Merfolk Spy
20%inclusion1 decks5 decks
20%synergy
Hullbreaker Horror
20%inclusion1 decks5 decks
-5%synergy
Tidebinder Mage
20%inclusion1 decks5 decks
20%synergy
Instants
Negate
60%inclusion3 decks5 decks
22%synergy
Aetherize
60%inclusion3 decks5 decks
31%synergy
Counterspell
60%inclusion3 decks5 decks
-7%synergy
High Tide
60%inclusion3 decks5 decks
16%synergy
Pongify
40%inclusion2 decks5 decks
0%synergy
Rapid Hybridization
40%inclusion2 decks5 decks
6%synergy
Frantic Search
40%inclusion2 decks5 decks
10%synergy
Opt
40%inclusion2 decks5 decks
15%synergy
Mana Drain
40%inclusion2 decks5 decks
13%synergy
Strix Serenade
40%inclusion2 decks5 decks
30%synergy
Swan Song
40%inclusion2 decks5 decks
14%synergy
Saw It Coming
40%inclusion2 decks5 decks
37%synergy
Disdainful Stroke
20%inclusion1 decks5 decks
15%synergy
An Offer You Can't Refuse
20%inclusion1 decks5 decks
-17%synergy
Brainstorm
20%inclusion1 decks5 decks
-21%synergy
Flare of Denial
20%inclusion1 decks5 decks
13%synergy
Fading Hope
20%inclusion1 decks5 decks
18%synergy
Repulse
20%inclusion1 decks5 decks
19%synergy
Unsummon
20%inclusion1 decks5 decks
16%synergy
Disallow
20%inclusion1 decks5 decks
13%synergy
Into the Flood Maw
20%inclusion1 decks5 decks
14%synergy
Cryptic Command
20%inclusion1 decks5 decks
8%synergy
Anticipate
20%inclusion1 decks5 decks
18%synergy
Arcane Denial
20%inclusion1 decks5 decks
-16%synergy
Flow of Knowledge
20%inclusion1 decks5 decks
4%synergy
Thassa's Rebuff
20%inclusion1 decks5 decks
19%synergy
Sink into Stupor
20%inclusion1 decks5 decks
-2%synergy
Misdirection
20%inclusion1 decks5 decks
15%synergy
Mana Leak
20%inclusion1 decks5 decks
13%synergy
Annul
20%inclusion1 decks5 decks
18%synergy
Spell Pierce
20%inclusion1 decks5 decks
12%synergy
Long River's Pull
20%inclusion1 decks5 decks
16%synergy
Sorceries
Aquitect's Will
60%inclusion3 decks5 decks
55%synergy
Sea Gate Restoration
40%inclusion2 decks5 decks
25%synergy
Crashing Tide
40%inclusion2 decks5 decks
40%synergy
Raise the Palisade
40%inclusion2 decks5 decks
37%synergy
Rite of Replication
40%inclusion2 decks5 decks
33%synergy
Chart a Course
20%inclusion1 decks5 decks
16%synergy
Slip Through Space
20%inclusion1 decks5 decks
15%synergy
Curse of the Swine
20%inclusion1 decks5 decks
8%synergy
Rise and Shine
20%inclusion1 decks5 decks
18%synergy
Temporal Manipulation
20%inclusion1 decks5 decks
16%synergy
Sleep
20%inclusion1 decks5 decks
18%synergy
Borrowing 100,000 Arrows
20%inclusion1 decks5 decks
19%synergy
Irenicus's Vile Duplication
20%inclusion1 decks5 decks
12%synergy
Retraced Image
20%inclusion1 decks5 decks
17%synergy
Preordain
20%inclusion1 decks5 decks
-4%synergy
Spectral Deluge
20%inclusion1 decks5 decks
9%synergy
Savor the Moment
20%inclusion1 decks5 decks
19%synergy
Open into Wonder
20%inclusion1 decks5 decks
19%synergy
Maddening Cacophony
20%inclusion1 decks5 decks
13%synergy
Traumatize
20%inclusion1 decks5 decks
15%synergy
Utility Artifacts
Bident of Thassa
60%inclusion3 decks5 decks
48%synergy
Quicksilver Fountain
40%inclusion2 decks5 decks
38%synergy
Banner of Kinship
40%inclusion2 decks5 decks
37%synergy
Vanquisher's Banner
40%inclusion2 decks5 decks
39%synergy
Door of Destinies
40%inclusion2 decks5 decks
39%synergy
The Indomitable
20%inclusion1 decks5 decks
18%synergy
Sword of Fire and Ice
20%inclusion1 decks5 decks
19%synergy
Wayfarer's Bauble
20%inclusion1 decks5 decks
2%synergy
Mnemonic Sphere
20%inclusion1 decks5 decks
19%synergy
Robe of the Archmagi
20%inclusion1 decks5 decks
19%synergy
Coat of Arms
20%inclusion1 decks5 decks
18%synergy
Folio of Fancies
20%inclusion1 decks5 decks
16%synergy
Winged Boots
20%inclusion1 decks5 decks
17%synergy
Urza's Incubator
20%inclusion1 decks5 decks
19%synergy
Kefnet's Monument
20%inclusion1 decks5 decks
14%synergy
Herald's Horn
20%inclusion1 decks5 decks
18%synergy
Swiftfoot Boots
20%inclusion1 decks5 decks
-8%synergy
Lightning Greaves
20%inclusion1 decks5 decks
-6%synergy
Sword of Feast and Famine
20%inclusion1 decks5 decks
19%synergy
Aether Vial
20%inclusion1 decks5 decks
20%synergy
Enchantments
Deeproot Waters
60%inclusion3 decks5 decks
59%synergy
Merrow Commerce
60%inclusion3 decks5 decks
59%synergy
Spreading Seas
60%inclusion3 decks5 decks
59%synergy
Propaganda
40%inclusion2 decks5 decks
10%synergy
Sea's Claim
40%inclusion2 decks5 decks
40%synergy
Reconnaissance Mission
20%inclusion1 decks5 decks
13%synergy
Teferi's Ageless Insight
20%inclusion1 decks5 decks
3%synergy
Psychic Corrosion
20%inclusion1 decks5 decks
12%synergy
Aqueous Form
20%inclusion1 decks5 decks
15%synergy
Imprisoned in the Moon
20%inclusion1 decks5 decks
8%synergy
Military Intelligence
20%inclusion1 decks5 decks
19%synergy
Copy Artifact
20%inclusion1 decks5 decks
16%synergy
Coastal Piracy
20%inclusion1 decks5 decks
16%synergy
Mystic Remora
20%inclusion1 decks5 decks
-7%synergy
Shark Typhoon
20%inclusion1 decks5 decks
13%synergy
Leyline of Anticipation
20%inclusion1 decks5 decks
11%synergy
Eaten by Piranhas
20%inclusion1 decks5 decks
17%synergy
Combat Research
20%inclusion1 decks5 decks
18%synergy
Utility Lands
Mystic Sanctuary
80%inclusion4 decks5 decks
29%synergy
Minamo, School at Water's Edge
60%inclusion3 decks5 decks
48%synergy
Castle Vantress
60%inclusion3 decks5 decks
41%synergy
Rivendell
40%inclusion2 decks5 decks
28%synergy
Scavenger Grounds
40%inclusion2 decks5 decks
33%synergy
War Room
40%inclusion2 decks5 decks
24%synergy
Nykthos, Shrine to Nyx
40%inclusion2 decks5 decks
24%synergy
Academy Ruins
40%inclusion2 decks5 decks
22%synergy
Archway of Innovation
40%inclusion2 decks5 decks
29%synergy
Reliquary Tower
40%inclusion2 decks5 decks
-16%synergy
Three Tree City
40%inclusion2 decks5 decks
36%synergy
Faerie Conclave
20%inclusion1 decks5 decks
18%synergy
Tyrite Sanctum
20%inclusion1 decks5 decks
18%synergy
Halimar Depths
20%inclusion1 decks5 decks
10%synergy
Lonely Sandbar
20%inclusion1 decks5 decks
6%synergy
Otawara, Soaring City
20%inclusion1 decks5 decks
-5%synergy
Mana Artifacts
Arcane Signet
100%inclusion5 decks5 decks
35%synergy
Sol Ring
60%inclusion3 decks5 decks
-25%synergy
Sky Diamond
40%inclusion2 decks5 decks
17%synergy
Heraldic Banner
40%inclusion2 decks5 decks
34%synergy
Mind Stone
40%inclusion2 decks5 decks
4%synergy
Hedron Archive
20%inclusion1 decks5 decks
14%synergy
Patchwork Banner
20%inclusion1 decks5 decks
16%synergy
Thought Vessel
20%inclusion1 decks5 decks
-32%synergy
Eye of Ramos
20%inclusion1 decks5 decks
20%synergy
Nyx Lotus
20%inclusion1 decks5 decks
16%synergy
Misleading Signpost
20%inclusion1 decks5 decks
16%synergy
Lands
Island
100%inclusion5 decks5 decks
7%synergy
Sea Gate Restoration
40%inclusion2 decks5 decks
25%synergy
Cavern of Souls
40%inclusion2 decks5 decks
35%synergy
Path of Ancestry
40%inclusion2 decks5 decks
36%synergy
Prismatic Vista
20%inclusion1 decks5 decks
15%synergy
Misty Rainforest
20%inclusion1 decks5 decks
12%synergy
Myriad Landscape
20%inclusion1 decks5 decks
-6%synergy
Hydroelectric Specimen
20%inclusion1 decks5 decks
6%synergy
Opal Palace
20%inclusion1 decks5 decks
19%synergy
Sink into Stupor
20%inclusion1 decks5 decks
-2%synergy
Scalding Tarn
20%inclusion1 decks5 decks
12%synergy
Polluted Delta
20%inclusion1 decks5 decks
12%synergy
Flooded Strand
20%inclusion1 decks5 decks
12%synergy
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