Svyelun of Sea and Sky (Commander) - Aggro

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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Emperor Mihail II
100%inclusion34 decks34 decks
99%synergy
Master of the Pearl Trident
100%inclusion34 decks34 decks
98%synergy
Merrow Reejerey
97%inclusion33 decks34 decks
95%synergy
Lord of Atlantis
94%inclusion32 decks34 decks
93%synergy
Stonybrook Banneret
94%inclusion32 decks34 decks
90%synergy
Kopala, Warden of Waves
91%inclusion31 decks34 decks
90%synergy
Vodalian Hexcatcher
91%inclusion31 decks34 decks
90%synergy
Merfolk Sovereign
91%inclusion31 decks34 decks
90%synergy
Deeproot Waters
88%inclusion30 decks34 decks
87%synergy
Seafloor Oracle
88%inclusion30 decks34 decks
87%synergy
Top Cards
Deeproot Pilgrimage
79%inclusion27 decks34 decks
78%synergy
Lullmage Mentor
79%inclusion27 decks34 decks
78%synergy
Tide Shaper
79%inclusion27 decks34 decks
78%synergy
Sapphire Medallion
79%inclusion27 decks34 decks
23%synergy
Counterspell
76%inclusion26 decks34 decks
9%synergy
Harbinger of the Seas
74%inclusion23 decks31 decks
65%synergy
Merrow Harbinger
74%inclusion25 decks34 decks
72%synergy
Silvergill Adept
74%inclusion25 decks34 decks
73%synergy
Bident of Thassa
74%inclusion25 decks34 decks
62%synergy
Thieving Skydiver
74%inclusion25 decks34 decks
69%synergy
Game Changers
Cyclonic Rift
41%inclusion14 decks34 decks
6%synergy
Rhystic Study
32%inclusion11 decks34 decks
-2%synergy
Force of Will
26%inclusion9 decks34 decks
9%synergy
Thassa's Oracle
21%inclusion7 decks34 decks
7%synergy
Fierce Guardianship
21%inclusion7 decks34 decks
-3%synergy
Mystical Tutor
15%inclusion5 decks34 decks
-10%synergy
Chrome Mox
8.8%inclusion3 decks34 decks
-1%synergy
Ancient Tomb
8.8%inclusion3 decks34 decks
-3%synergy
The One Ring
8.8%inclusion3 decks34 decks
-4%synergy
Mana Vault
5.9%inclusion2 decks34 decks
-5%synergy
Creatures
Harbinger of the Tides
71%inclusion24 decks34 decks
69%synergy
Merfolk Trickster
71%inclusion24 decks34 decks
69%synergy
Mist Dancer
68%inclusion23 decks34 decks
67%synergy
Thada Adel, Acquisitor
59%inclusion20 decks34 decks
57%synergy
Tishana's Tidebinder
56%inclusion19 decks34 decks
51%synergy
Mistcaller
53%inclusion18 decks34 decks
52%synergy
Wanderwine Prophets
53%inclusion18 decks34 decks
52%synergy
Cursecatcher
50%inclusion17 decks34 decks
48%synergy
Coralhelm Commander
47%inclusion16 decks34 decks
46%synergy
Deepchannel Mentor
47%inclusion16 decks34 decks
46%synergy
Mist-Cloaked Herald
47%inclusion16 decks34 decks
45%synergy
Tempest Caller
47%inclusion16 decks34 decks
46%synergy
True-Name Nemesis
44%inclusion15 decks34 decks
43%synergy
Master of Waves
41%inclusion14 decks34 decks
37%synergy
Seahunter
41%inclusion14 decks34 decks
41%synergy
Triton Shorestalker
41%inclusion14 decks34 decks
39%synergy
Sea Scryer
38%inclusion13 decks34 decks
37%synergy
Wake Thrasher
35%inclusion12 decks34 decks
35%synergy
Floodpits Drowner
35%inclusion8 decks23 decks
34%synergy
Streambed Aquitects
32%inclusion11 decks34 decks
32%synergy
River Sneak
32%inclusion11 decks34 decks
32%synergy
Empress Galina
32%inclusion11 decks34 decks
31%synergy
Rishadan Dockhand
29%inclusion10 decks34 decks
29%synergy
Cosi's Trickster
26%inclusion9 decks34 decks
26%synergy
Merfolk Looter
26%inclusion9 decks34 decks
24%synergy
Thassa, God of the Sea
26%inclusion9 decks34 decks
23%synergy
Tidal Warrior
26%inclusion9 decks34 decks
26%synergy
Glasspool Mimic
26%inclusion9 decks34 decks
20%synergy
Talrand, Sky Summoner
26%inclusion9 decks34 decks
12%synergy
Mindspring Merfolk
25%inclusion5 decks20 decks
24%synergy
Sigil Tracer
24%inclusion8 decks34 decks
22%synergy
Benthic Biomancer
24%inclusion8 decks34 decks
23%synergy
Enduring Curiosity
22%inclusion5 decks23 decks
16%synergy
Stormtide Leviathan
21%inclusion7 decks34 decks
13%synergy
Gray Harbor Merfolk
21%inclusion7 decks34 decks
20%synergy
Reef Shaman
18%inclusion6 decks34 decks
17%synergy
Fallowsage
18%inclusion6 decks34 decks
17%synergy
Summon: Leviathan
17%inclusion2 decks12 decks
15%synergy
Roaming Throne
15%inclusion5 decks34 decks
10%synergy
Tideshaper Mystic
15%inclusion5 decks34 decks
14%synergy
Surgespanner
15%inclusion5 decks34 decks
14%synergy
Rootwater Thief
15%inclusion5 decks34 decks
14%synergy
Titan of Littjara
15%inclusion5 decks34 decks
13%synergy
Kiora, the Rising Tide
14%inclusion3 decks22 decks
10%synergy
Eluge, the Shoreless Sea
13%inclusion3 decks24 decks
4%synergy
Slinn Voda, the Rising Deep
12%inclusion4 decks34 decks
11%synergy
Defiler of Dreams
12%inclusion4 decks34 decks
2%synergy
Drowner of Secrets
12%inclusion4 decks34 decks
11%synergy
Enclave Cryptologist
12%inclusion4 decks34 decks
11%synergy
Tidebinder Mage
12%inclusion4 decks34 decks
11%synergy
Instants
Negate
56%inclusion19 decks34 decks
17%synergy
High Tide
53%inclusion18 decks34 decks
9%synergy
Rapid Hybridization
47%inclusion16 decks34 decks
13%synergy
Pongify
44%inclusion15 decks34 decks
4%synergy
Reality Shift
38%inclusion13 decks34 decks
10%synergy
Aetherize
38%inclusion13 decks34 decks
11%synergy
Sink into Stupor
35%inclusion11 decks31 decks
15%synergy
Cryptic Command
32%inclusion11 decks34 decks
21%synergy
Flare of Denial
32%inclusion10 decks31 decks
26%synergy
Brainstorm
26%inclusion9 decks34 decks
-15%synergy
Filter Out
26%inclusion9 decks34 decks
22%synergy
Mana Drain
24%inclusion8 decks34 decks
-3%synergy
Resculpt
24%inclusion8 decks34 decks
4%synergy
An Offer You Can't Refuse
21%inclusion7 decks34 decks
-15%synergy
Swan Song
21%inclusion7 decks34 decks
-5%synergy
Thassa's Rebuff
21%inclusion7 decks34 decks
19%synergy
Spell Pierce
21%inclusion7 decks34 decks
12%synergy
Foil
18%inclusion6 decks34 decks
12%synergy
Flusterstorm
15%inclusion5 decks34 decks
5%synergy
Arcane Denial
15%inclusion5 decks34 decks
-21%synergy
Mystic Reflection
12%inclusion4 decks34 decks
10%synergy
Archmage's Charm
12%inclusion4 decks34 decks
-4%synergy
Consult the Star Charts
10%inclusion1 decks10 decks
6%synergy
Muddle the Mixture
8.8%inclusion3 decks34 decks
-7%synergy
Disdainful Stroke
8.8%inclusion3 decks34 decks
4%synergy
Frantic Search
8.8%inclusion3 decks34 decks
-21%synergy
Dive Down
8.8%inclusion3 decks34 decks
6%synergy
Aetherspouts
8.8%inclusion3 decks34 decks
2%synergy
Submerge
8.8%inclusion3 decks34 decks
8%synergy
Engulf the Shore
8.8%inclusion3 decks34 decks
0%synergy
Wash Away
8.8%inclusion3 decks34 decks
4%synergy
Force of Negation
8.8%inclusion3 decks34 decks
-7%synergy
Snap
8.8%inclusion3 decks34 decks
-9%synergy
Mana Leak
8.8%inclusion3 decks34 decks
2%synergy
Abjure
8.8%inclusion3 decks34 decks
4%synergy
March of Swirling Mist
8.8%inclusion3 decks34 decks
1%synergy
Strix Serenade
6.5%inclusion2 decks31 decks
-3%synergy
Chain of Vapor
5.9%inclusion2 decks34 decks
1%synergy
Cyber Conversion
5.9%inclusion2 decks34 decks
2%synergy
Stubborn Denial
5.9%inclusion2 decks34 decks
3%synergy
Familiar's Ruse
5.9%inclusion2 decks34 decks
5%synergy
Essence Scatter
5.9%inclusion2 decks34 decks
2%synergy
Opt
5.9%inclusion2 decks34 decks
-19%synergy
Cancel
5.9%inclusion2 decks34 decks
1%synergy
Tale's End
5.9%inclusion2 decks34 decks
3%synergy
Jwari Disruption
5.9%inclusion2 decks34 decks
1%synergy
Pull from Tomorrow
5.9%inclusion2 decks34 decks
-3%synergy
Flow of Knowledge
5.9%inclusion2 decks34 decks
-11%synergy
Wizard's Retort
5.9%inclusion2 decks34 decks
1%synergy
Lazotep Plating
5.9%inclusion2 decks34 decks
3%synergy
Sorceries
Distant Melody
47%inclusion16 decks34 decks
42%synergy
Aquitect's Will
41%inclusion14 decks34 decks
36%synergy
Raise the Palisade
35%inclusion12 decks34 decks
32%synergy
Sea Gate Restoration
24%inclusion8 decks34 decks
9%synergy
Ravenform
24%inclusion8 decks34 decks
13%synergy
Windfall
21%inclusion7 decks34 decks
-3%synergy
Curse of the Swine
21%inclusion7 decks34 decks
8%synergy
Ponder
18%inclusion6 decks34 decks
-12%synergy
Rite of Replication
18%inclusion6 decks34 decks
11%synergy
Inundate
15%inclusion5 decks34 decks
13%synergy
Spectral Deluge
15%inclusion5 decks34 decks
3%synergy
River's Rebuke
15%inclusion5 decks34 decks
11%synergy
Crashing Tide
8.8%inclusion3 decks34 decks
8%synergy
Step Through
8.8%inclusion3 decks34 decks
3%synergy
Consuming Tide
5.9%inclusion2 decks34 decks
3%synergy
Mind Spring
5.9%inclusion2 decks34 decks
4%synergy
Retraced Image
5.9%inclusion2 decks34 decks
3%synergy
Preordain
5.9%inclusion2 decks34 decks
-19%synergy
Utility Artifacts
Kefnet's Monument
38%inclusion13 decks34 decks
32%synergy
Quicksilver Fountain
32%inclusion11 decks34 decks
31%synergy
Vanquisher's Banner
29%inclusion10 decks34 decks
28%synergy
Door of Destinies
26%inclusion9 decks34 decks
26%synergy
Herald's Horn
26%inclusion9 decks34 decks
24%synergy
Lightning Greaves
24%inclusion8 decks34 decks
-3%synergy
Swiftfoot Boots
21%inclusion7 decks34 decks
-8%synergy
Wayfarer's Bauble
15%inclusion5 decks34 decks
-4%synergy
Winter Moon
13%inclusion4 decks31 decks
8%synergy
The Indomitable
12%inclusion4 decks34 decks
9%synergy
Sword of the Animist
12%inclusion4 decks34 decks
6%synergy
Thrumming Hivepool
10%inclusion1 decks10 decks
10%synergy
Banner of Kinship
9.1%inclusion2 decks22 decks
7%synergy
Commander's Plate
8.8%inclusion3 decks34 decks
5%synergy
Soul-Guide Lantern
5.9%inclusion2 decks34 decks
1%synergy
Robe of the Archmagi
5.9%inclusion2 decks34 decks
5%synergy
Horn of the Mark
5.9%inclusion2 decks34 decks
6%synergy
Sword of Forge and Frontier
5.9%inclusion2 decks34 decks
5%synergy
Sword of Feast and Famine
5.9%inclusion2 decks34 decks
4%synergy
Isochron Scepter
5.9%inclusion2 decks34 decks
-13%synergy
Empyrial Plate
5.9%inclusion2 decks34 decks
4%synergy
Aether Vial
5.9%inclusion2 decks34 decks
5%synergy
Lifecraft Engine
5.0%inclusion1 decks20 decks
5%synergy
Enchantments
Merrow Commerce
71%inclusion24 decks34 decks
70%synergy
Kindred Discovery
68%inclusion23 decks34 decks
61%synergy
Reflections of Littjara
41%inclusion14 decks34 decks
38%synergy
Spreading Seas
35%inclusion12 decks34 decks
34%synergy
Reconnaissance Mission
26%inclusion9 decks34 decks
19%synergy
Mystic Remora
26%inclusion9 decks34 decks
-1%synergy
Coastal Piracy
24%inclusion8 decks34 decks
19%synergy
Imprisoned in the Moon
21%inclusion7 decks34 decks
9%synergy
Wizard Class
21%inclusion7 decks34 decks
4%synergy
Aquatic Incursion
18%inclusion6 decks34 decks
17%synergy
Back to Basics
12%inclusion4 decks34 decks
4%synergy
Intruder Alarm
12%inclusion4 decks34 decks
9%synergy
Propaganda
12%inclusion4 decks34 decks
-17%synergy
Sea's Claim
12%inclusion4 decks34 decks
11%synergy
Teferi's Ageless Insight
5.9%inclusion2 decks34 decks
-11%synergy
Curiosity
5.9%inclusion2 decks34 decks
3%synergy
Convincing Mirage
5.9%inclusion2 decks34 decks
6%synergy
Leyline of Anticipation
5.9%inclusion2 decks34 decks
-4%synergy
Opposition
5.9%inclusion2 decks34 decks
5%synergy
Equilibrium
5.9%inclusion2 decks34 decks
5%synergy
Telepathy
5.9%inclusion2 decks34 decks
4%synergy
Unstoppable Plan
5.0%inclusion1 decks20 decks
-2%synergy
Utility Lands
Mystic Sanctuary
68%inclusion23 decks34 decks
17%synergy
Reliquary Tower
56%inclusion19 decks34 decks
0%synergy
Otawara, Soaring City
44%inclusion15 decks34 decks
19%synergy
Nykthos, Shrine to Nyx
38%inclusion13 decks34 decks
22%synergy
Castle Vantress
32%inclusion11 decks34 decks
13%synergy
Minamo, School at Water's Edge
29%inclusion10 decks34 decks
18%synergy
Three Tree City
24%inclusion6 decks25 decks
21%synergy
Halimar Depths
24%inclusion8 decks34 decks
13%synergy
Riptide Laboratory
24%inclusion8 decks34 decks
13%synergy
Scavenger Grounds
24%inclusion8 decks34 decks
16%synergy
Mutavault
24%inclusion8 decks34 decks
23%synergy
Lonely Sandbar
24%inclusion8 decks34 decks
9%synergy
Rivendell
18%inclusion6 decks34 decks
6%synergy
War Room
18%inclusion6 decks34 decks
1%synergy
Hall of Storm Giants
12%inclusion4 decks34 decks
9%synergy
Maze of Ith
12%inclusion4 decks34 decks
7%synergy
Academy Ruins
12%inclusion4 decks34 decks
-6%synergy
Rogue's Passage
12%inclusion4 decks34 decks
-3%synergy
Coral Atoll
8.8%inclusion3 decks34 decks
5%synergy
Svyelunite Temple
8.8%inclusion3 decks34 decks
8%synergy
Strip Mine
8.8%inclusion3 decks34 decks
6%synergy
Sunken Palace
6.7%inclusion2 decks30 decks
2%synergy
Remote Isle
5.9%inclusion2 decks34 decks
1%synergy
Ghost Quarter
5.9%inclusion2 decks34 decks
3%synergy
Tolaria West
5.9%inclusion2 decks34 decks
0%synergy
Urza's Saga
5.9%inclusion2 decks34 decks
-11%synergy
Emergence Zone
5.9%inclusion2 decks34 decks
1%synergy
Cephalid Coliseum
5.9%inclusion2 decks34 decks
-3%synergy
Temple of the False God
5.9%inclusion2 decks34 decks
-4%synergy
Saprazzan Skerry
5.9%inclusion2 decks34 decks
3%synergy
Mana Artifacts
Sol Ring
76%inclusion26 decks34 decks
-9%synergy
Arcane Signet
68%inclusion23 decks34 decks
2%synergy
Thought Vessel
38%inclusion13 decks34 decks
-13%synergy
Sky Diamond
35%inclusion12 decks34 decks
11%synergy
Patchwork Banner
25%inclusion6 decks24 decks
22%synergy
Fellwar Stone
21%inclusion7 decks34 decks
1%synergy
Heraldic Banner
18%inclusion6 decks34 decks
12%synergy
Lotus Petal
15%inclusion5 decks34 decks
3%synergy
Mind Stone
15%inclusion5 decks34 decks
-23%synergy
Jeweled Lotus
12%inclusion4 decks34 decks
8%synergy
Throne of Eldraine
12%inclusion4 decks34 decks
2%synergy
Springleaf Drum
8.8%inclusion3 decks34 decks
6%synergy
Mana Crypt
5.9%inclusion2 decks34 decks
1%synergy
Mox Amber
5.9%inclusion2 decks34 decks
-1%synergy
Decanter of Endless Water
5.9%inclusion2 decks34 decks
-9%synergy
Liquimetal Torque
5.9%inclusion2 decks34 decks
-1%synergy
Nyx Lotus
5.9%inclusion2 decks34 decks
2%synergy
Extraplanar Lens
5.9%inclusion2 decks34 decks
-2%synergy
Aetheric Amplifier
5.0%inclusion1 decks20 decks
4%synergy
Lands
Island
91%inclusion31 decks34 decks
-2%synergy
Cavern of Souls
41%inclusion14 decks34 decks
37%synergy
Sink into Stupor
35%inclusion11 decks31 decks
15%synergy
Path of Ancestry
29%inclusion10 decks34 decks
25%synergy
Myriad Landscape
26%inclusion9 decks34 decks
0%synergy
Glasspool Mimic
26%inclusion9 decks34 decks
20%synergy
Sea Gate Restoration
24%inclusion8 decks34 decks
9%synergy
Misty Rainforest
12%inclusion4 decks34 decks
4%synergy
Snow-Covered Island
12%inclusion4 decks34 decks
4%synergy
Demolition Field
12%inclusion4 decks34 decks
7%synergy
Scalding Tarn
12%inclusion4 decks34 decks
4%synergy
Hydroelectric Specimen
10%inclusion3 decks31 decks
-3%synergy
Gemstone Caverns
8.8%inclusion3 decks34 decks
3%synergy
Flooded Strand
8.8%inclusion3 decks34 decks
1%synergy
Urza's Cave
6.5%inclusion2 decks31 decks
2%synergy
Jwari Disruption
5.9%inclusion2 decks34 decks
1%synergy
Polluted Delta
5.9%inclusion2 decks34 decks
-2%synergy
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