Svyelun of Sea and Sky (Commander) - Optimized

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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Spider-Sense
11%inclusion2 decks18 decks
8%synergy
Hydro-Man, Fluid Felon
5.6%inclusion1 decks18 decks
3%synergy
High Synergy Cards
Master of the Pearl Trident
94%inclusion63 decks67 decks
92%synergy
Merrow Reejerey
93%inclusion62 decks67 decks
91%synergy
Emperor Mihail II
87%inclusion58 decks67 decks
86%synergy
Kopala, Warden of Waves
87%inclusion58 decks67 decks
85%synergy
Vodalian Hexcatcher
87%inclusion58 decks67 decks
85%synergy
Merfolk Sovereign
85%inclusion57 decks67 decks
83%synergy
Lord of Atlantis
82%inclusion55 decks67 decks
81%synergy
Deeproot Pilgrimage
82%inclusion55 decks67 decks
81%synergy
Seafloor Oracle
79%inclusion53 decks67 decks
78%synergy
Harbinger of the Seas
87%inclusion58 decks67 decks
77%synergy
Top Cards
Stonybrook Banneret
79%inclusion53 decks67 decks
75%synergy
Deeproot Waters
78%inclusion52 decks67 decks
76%synergy
Merrow Commerce
76%inclusion51 decks67 decks
75%synergy
Counterspell
75%inclusion50 decks67 decks
8%synergy
Merrow Harbinger
72%inclusion48 decks67 decks
71%synergy
Thieving Skydiver
70%inclusion47 decks67 decks
66%synergy
Sapphire Medallion
69%inclusion46 decks67 decks
12%synergy
Lullmage Mentor
69%inclusion46 decks67 decks
67%synergy
Bident of Thassa
69%inclusion46 decks67 decks
57%synergy
Tishana's Tidebinder
66%inclusion44 decks67 decks
61%synergy
Game Changers
Rhystic Study
52%inclusion35 decks67 decks
18%synergy
Cyclonic Rift
49%inclusion33 decks67 decks
14%synergy
Fierce Guardianship
42%inclusion28 decks67 decks
19%synergy
Thassa's Oracle
39%inclusion26 decks67 decks
26%synergy
Force of Will
30%inclusion20 decks67 decks
12%synergy
Mystical Tutor
27%inclusion18 decks67 decks
2%synergy
Narset, Parter of Veils
9.0%inclusion6 decks67 decks
-3%synergy
Ancient Tomb
9.0%inclusion6 decks67 decks
-3%synergy
Chrome Mox
7.5%inclusion5 decks67 decks
-2%synergy
Creatures
Tide Shaper
58%inclusion39 decks67 decks
57%synergy
Harbinger of the Tides
57%inclusion38 decks67 decks
55%synergy
Thada Adel, Acquisitor
54%inclusion36 decks67 decks
52%synergy
Merfolk Trickster
54%inclusion36 decks67 decks
52%synergy
Deepchannel Mentor
52%inclusion35 decks67 decks
51%synergy
Mist Dancer
52%inclusion35 decks67 decks
51%synergy
Coralhelm Commander
51%inclusion34 decks67 decks
50%synergy
Wanderwine Prophets
49%inclusion33 decks67 decks
49%synergy
Master of Waves
48%inclusion32 decks67 decks
44%synergy
Silvergill Adept
48%inclusion32 decks67 decks
47%synergy
Triton Shorestalker
46%inclusion31 decks67 decks
44%synergy
True-Name Nemesis
46%inclusion31 decks67 decks
45%synergy
Seahunter
43%inclusion29 decks67 decks
43%synergy
Mist-Cloaked Herald
40%inclusion27 decks67 decks
38%synergy
Thassa, God of the Sea
37%inclusion25 decks67 decks
34%synergy
River Sneak
36%inclusion24 decks67 decks
35%synergy
Wake Thrasher
34%inclusion23 decks67 decks
34%synergy
Tempest Caller
33%inclusion22 decks67 decks
32%synergy
Kiora, the Rising Tide
32%inclusion21 decks66 decks
28%synergy
Rishadan Dockhand
31%inclusion21 decks67 decks
31%synergy
Cosi's Trickster
31%inclusion21 decks67 decks
31%synergy
Empress Galina
31%inclusion21 decks67 decks
30%synergy
Mindspring Merfolk
31%inclusion20 decks65 decks
30%synergy
Cursecatcher
30%inclusion20 decks67 decks
28%synergy
Floodpits Drowner
25%inclusion17 decks67 decks
24%synergy
Streambed Aquitects
25%inclusion17 decks67 decks
25%synergy
Roaming Throne
25%inclusion17 decks67 decks
21%synergy
Summon: Leviathan
23%inclusion10 decks44 decks
21%synergy
Talrand, Sky Summoner
22%inclusion15 decks67 decks
8%synergy
Mistcaller
19%inclusion13 decks67 decks
18%synergy
Tidal Warrior
19%inclusion13 decks67 decks
19%synergy
Stormtide Leviathan
18%inclusion12 decks67 decks
11%synergy
Metallic Mimic
16%inclusion11 decks67 decks
15%synergy
Tideshaper Mystic
15%inclusion10 decks67 decks
15%synergy
Alandra, Sky Dreamer
15%inclusion10 decks67 decks
8%synergy
Glasspool Mimic
15%inclusion10 decks67 decks
9%synergy
Defiler of Dreams
15%inclusion10 decks67 decks
6%synergy
Sea Scryer
13%inclusion9 decks67 decks
12%synergy
Merfolk Looter
13%inclusion9 decks67 decks
11%synergy
Titan of Littjara
13%inclusion9 decks67 decks
12%synergy
Eluge, the Shoreless Sea
10%inclusion7 decks67 decks
2%synergy
Surgespanner
10%inclusion7 decks67 decks
10%synergy
Rootwater Thief
10%inclusion7 decks67 decks
10%synergy
Thassa, Deep-Dwelling
10%inclusion7 decks67 decks
6%synergy
Benthic Biomancer
10%inclusion7 decks67 decks
10%synergy
Emry, Lurker of the Loch
10%inclusion7 decks67 decks
-1%synergy
Wonder
10%inclusion7 decks67 decks
5%synergy
Shipwreck Dowser
10%inclusion7 decks67 decks
8%synergy
Adaptive Automaton
9.0%inclusion6 decks67 decks
7%synergy
Slinn Voda, the Rising Deep
9.0%inclusion6 decks67 decks
8%synergy
Instants
Pongify
52%inclusion35 decks67 decks
12%synergy
High Tide
52%inclusion35 decks67 decks
8%synergy
Rapid Hybridization
46%inclusion31 decks67 decks
12%synergy
Mana Drain
45%inclusion30 decks67 decks
18%synergy
Negate
42%inclusion28 decks67 decks
3%synergy
Aetherize
42%inclusion28 decks67 decks
14%synergy
Reality Shift
39%inclusion26 decks67 decks
10%synergy
Swan Song
36%inclusion24 decks67 decks
10%synergy
Arcane Denial
31%inclusion21 decks67 decks
-5%synergy
Thassa's Rebuff
31%inclusion21 decks67 decks
30%synergy
Flare of Denial
31%inclusion21 decks67 decks
25%synergy
Force of Negation
31%inclusion21 decks67 decks
16%synergy
Brainstorm
28%inclusion19 decks67 decks
-13%synergy
An Offer You Can't Refuse
28%inclusion19 decks67 decks
-7%synergy
Filter Out
21%inclusion14 decks67 decks
16%synergy
Spell Pierce
18%inclusion12 decks67 decks
9%synergy
Pact of Negation
18%inclusion12 decks67 decks
8%synergy
Flow of Knowledge
16%inclusion11 decks67 decks
0%synergy
Resculpt
16%inclusion11 decks67 decks
-3%synergy
Sink into Stupor
16%inclusion11 decks67 decks
-4%synergy
Muddle the Mixture
15%inclusion10 decks67 decks
-1%synergy
Cryptic Command
13%inclusion9 decks67 decks
2%synergy
Strix Serenade
12%inclusion8 decks67 decks
2%synergy
Mana Leak
12%inclusion8 decks67 decks
5%synergy
Cancel
12%inclusion8 decks67 decks
7%synergy
Archmage's Charm
10%inclusion7 decks67 decks
-6%synergy
Dispel
10%inclusion7 decks67 decks
1%synergy
Frantic Search
10%inclusion7 decks67 decks
-19%synergy
March of Swirling Mist
9.0%inclusion6 decks67 decks
1%synergy
Opt
9.0%inclusion6 decks67 decks
-16%synergy
Engulf the Shore
9.0%inclusion6 decks67 decks
0%synergy
Misdirection
9.0%inclusion6 decks67 decks
4%synergy
Cyber Conversion
7.5%inclusion5 decks67 decks
4%synergy
Flusterstorm
7.5%inclusion5 decks67 decks
-2%synergy
Rewind
7.5%inclusion5 decks67 decks
-5%synergy
Mystic Reflection
6.0%inclusion4 decks67 decks
4%synergy
Thassa's Intervention
6.0%inclusion4 decks67 decks
5%synergy
Disdainful Stroke
6.0%inclusion4 decks67 decks
1%synergy
Essence Scatter
6.0%inclusion4 decks67 decks
2%synergy
Narset's Reversal
6.0%inclusion4 decks67 decks
-6%synergy
Wash Away
6.0%inclusion4 decks67 decks
1%synergy
Didn't Say Please
6.0%inclusion4 decks67 decks
1%synergy
Unwind
6.0%inclusion4 decks67 decks
-4%synergy
Dig Through Time
6.0%inclusion4 decks67 decks
-4%synergy
Sorceries
Aquitect's Will
52%inclusion35 decks67 decks
47%synergy
Distant Melody
42%inclusion28 decks67 decks
37%synergy
Ponder
34%inclusion23 decks67 decks
5%synergy
Raise the Palisade
30%inclusion20 decks67 decks
27%synergy
Inundate
24%inclusion16 decks67 decks
22%synergy
Spectral Deluge
19%inclusion13 decks67 decks
8%synergy
Curse of the Swine
18%inclusion12 decks67 decks
6%synergy
Sea Gate Restoration
13%inclusion9 decks67 decks
-1%synergy
Preordain
13%inclusion9 decks67 decks
-11%synergy
Rite of Replication
12%inclusion8 decks67 decks
5%synergy
Crashing Tide
12%inclusion8 decks67 decks
12%synergy
Ravenform
10%inclusion7 decks67 decks
0%synergy
Chart a Course
9.0%inclusion6 decks67 decks
4%synergy
Step Through
9.0%inclusion6 decks67 decks
3%synergy
River's Rebuke
9.0%inclusion6 decks67 decks
5%synergy
Consuming Tide
7.5%inclusion5 decks67 decks
4%synergy
Paradigm Shift
7.5%inclusion5 decks67 decks
7%synergy
Divination
7.5%inclusion5 decks67 decks
6%synergy
Windfall
6.0%inclusion4 decks67 decks
-17%synergy
Solve the Equation
6.0%inclusion4 decks67 decks
-8%synergy
Wash Out
6.0%inclusion4 decks67 decks
1%synergy
Walk the Aeons
6.0%inclusion4 decks67 decks
4%synergy
Utility Artifacts
Herald's Horn
36%inclusion24 decks67 decks
34%synergy
Vanquisher's Banner
28%inclusion19 decks67 decks
27%synergy
Kefnet's Monument
27%inclusion18 decks67 decks
20%synergy
Swiftfoot Boots
27%inclusion18 decks67 decks
-1%synergy
Door of Destinies
25%inclusion17 decks67 decks
25%synergy
Lightning Greaves
22%inclusion15 decks67 decks
-4%synergy
Quicksilver Fountain
19%inclusion13 decks67 decks
18%synergy
Coat of Arms
15%inclusion10 decks67 decks
13%synergy
Banner of Kinship
12%inclusion8 decks66 decks
10%synergy
Aether Vial
12%inclusion8 decks67 decks
11%synergy
Winter Moon
10%inclusion7 decks67 decks
6%synergy
Sword of the Animist
10%inclusion7 decks67 decks
5%synergy
Icon of Ancestry
10%inclusion7 decks67 decks
10%synergy
Wayfarer's Bauble
9.0%inclusion6 decks67 decks
-10%synergy
Urza's Incubator
7.5%inclusion5 decks67 decks
6%synergy
Commander's Plate
7.5%inclusion5 decks67 decks
3%synergy
Pyre of Heroes
6.0%inclusion4 decks67 decks
6%synergy
Stoneforge Masterwork
6.0%inclusion4 decks67 decks
6%synergy
Enchantments
Kindred Discovery
52%inclusion35 decks67 decks
46%synergy
Reflections of Littjara
40%inclusion27 decks67 decks
37%synergy
Mystic Remora
33%inclusion22 decks67 decks
5%synergy
Spreading Seas
28%inclusion19 decks67 decks
27%synergy
Reconnaissance Mission
24%inclusion16 decks67 decks
17%synergy
Imprisoned in the Moon
22%inclusion15 decks67 decks
10%synergy
Propaganda
18%inclusion12 decks67 decks
-11%synergy
Wizard Class
18%inclusion12 decks67 decks
1%synergy
Back to Basics
16%inclusion11 decks67 decks
8%synergy
Eaten by Piranhas
13%inclusion9 decks67 decks
10%synergy
Coastal Piracy
13%inclusion9 decks67 decks
9%synergy
Intruder Alarm
12%inclusion8 decks67 decks
9%synergy
Aquatic Incursion
10%inclusion7 decks67 decks
10%synergy
Amphibian Downpour
9.0%inclusion6 decks67 decks
3%synergy
Witness Protection
9.0%inclusion6 decks67 decks
3%synergy
Omniscience
9.0%inclusion6 decks67 decks
0%synergy
Military Intelligence
7.5%inclusion5 decks67 decks
6%synergy
Sea's Claim
7.5%inclusion5 decks67 decks
7%synergy
Frogify
6.0%inclusion4 decks67 decks
4%synergy
Unable to Scream
6.0%inclusion4 decks67 decks
2%synergy
Leyline of Anticipation
6.0%inclusion4 decks67 decks
-4%synergy
Equilibrium
6.0%inclusion4 decks67 decks
6%synergy
Curiosity
6.0%inclusion4 decks67 decks
3%synergy
Utility Lands
Mystic Sanctuary
66%inclusion44 decks67 decks
15%synergy
Reliquary Tower
57%inclusion38 decks67 decks
0%synergy
Nykthos, Shrine to Nyx
40%inclusion27 decks67 decks
24%synergy
Halimar Depths
28%inclusion19 decks67 decks
18%synergy
Three Tree City
28%inclusion19 decks67 decks
25%synergy
Otawara, Soaring City
27%inclusion18 decks67 decks
2%synergy
Castle Vantress
27%inclusion18 decks67 decks
8%synergy
Mutavault
19%inclusion13 decks67 decks
18%synergy
Lonely Sandbar
19%inclusion13 decks67 decks
5%synergy
Rogue's Passage
18%inclusion12 decks67 decks
3%synergy
Riptide Laboratory
15%inclusion10 decks67 decks
4%synergy
Minamo, School at Water's Edge
15%inclusion10 decks67 decks
3%synergy
War Room
12%inclusion8 decks67 decks
-5%synergy
Rivendell
12%inclusion8 decks67 decks
0%synergy
Svyelunite Temple
9.0%inclusion6 decks67 decks
8%synergy
Academy Ruins
7.5%inclusion5 decks67 decks
-11%synergy
Hall of Storm Giants
7.5%inclusion5 decks67 decks
5%synergy
Maze of Ith
7.5%inclusion5 decks67 decks
2%synergy
Coral Atoll
7.5%inclusion5 decks67 decks
4%synergy
Temple of the False God
6.0%inclusion4 decks67 decks
-4%synergy
Tolaria West
6.0%inclusion4 decks67 decks
0%synergy
Mana Artifacts
Sol Ring
85%inclusion57 decks67 decks
-1%synergy
Thought Vessel
37%inclusion25 decks67 decks
-14%synergy
Arcane Signet
37%inclusion25 decks67 decks
-28%synergy
Patchwork Banner
19%inclusion13 decks67 decks
16%synergy
Heraldic Banner
18%inclusion12 decks67 decks
12%synergy
Nyx Lotus
18%inclusion12 decks67 decks
14%synergy
Sky Diamond
16%inclusion11 decks67 decks
-8%synergy
Mind Stone
15%inclusion10 decks67 decks
-22%synergy
Caged Sun
13%inclusion9 decks67 decks
1%synergy
Gauntlet of Power
9.0%inclusion6 decks67 decks
5%synergy
Fellwar Stone
6.0%inclusion4 decks67 decks
-14%synergy
Decanter of Endless Water
6.0%inclusion4 decks67 decks
-9%synergy
Lotus Petal
6.0%inclusion4 decks67 decks
-6%synergy
Throne of Eldraine
6.0%inclusion4 decks67 decks
-4%synergy
Lands
Island
94%inclusion63 decks67 decks
1%synergy
Cavern of Souls
39%inclusion26 decks67 decks
34%synergy
Path of Ancestry
39%inclusion26 decks67 decks
35%synergy
Myriad Landscape
21%inclusion14 decks67 decks
-6%synergy
Sink into Stupor
16%inclusion11 decks67 decks
-4%synergy
Glasspool Mimic
15%inclusion10 decks67 decks
9%synergy
Sea Gate Restoration
13%inclusion9 decks67 decks
-1%synergy
Flooded Strand
12%inclusion8 decks67 decks
4%synergy
Misty Rainforest
9.0%inclusion6 decks67 decks
1%synergy
Evolving Wilds
9.0%inclusion6 decks67 decks
5%synergy
Snow-Covered Island
9.0%inclusion6 decks67 decks
1%synergy
Scalding Tarn
7.5%inclusion5 decks67 decks
0%synergy
Polluted Delta
6.0%inclusion4 decks67 decks
-2%synergy
Prismatic Vista
6.0%inclusion4 decks67 decks
1%synergy
Fabled Passage
6.0%inclusion4 decks67 decks
3%synergy
Terramorphic Expanse
6.0%inclusion4 decks67 decks
3%synergy
Gemstone Caverns
6.0%inclusion4 decks67 decks
0%synergy
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