Svyelun of Sea and Sky (Commander) - Upgraded

Svyelun of Sea and Sky
Rank #1,129
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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
94%inclusion67 decks71 decks
93%synergy
Merrow Reejerey
90%inclusion64 decks71 decks
89%synergy
Merfolk Sovereign
90%inclusion64 decks71 decks
89%synergy
Seafloor Oracle
89%inclusion63 decks71 decks
87%synergy
Stonybrook Banneret
90%inclusion64 decks71 decks
86%synergy
Emperor Mihail II
87%inclusion62 decks71 decks
86%synergy
Kopala, Warden of Waves
86%inclusion61 decks71 decks
85%synergy
Vodalian Hexcatcher
86%inclusion61 decks71 decks
84%synergy
Lord of Atlantis
83%inclusion59 decks71 decks
82%synergy
Thieving Skydiver
76%inclusion54 decks71 decks
72%synergy
Top Cards
Counterspell
76%inclusion54 decks71 decks
9%synergy
Sapphire Medallion
75%inclusion53 decks71 decks
18%synergy
Deeproot Pilgrimage
73%inclusion52 decks71 decks
72%synergy
Bident of Thassa
70%inclusion50 decks71 decks
59%synergy
Deeproot Waters
69%inclusion49 decks71 decks
68%synergy
Merrow Harbinger
68%inclusion48 decks71 decks
67%synergy
Lullmage Mentor
65%inclusion46 decks71 decks
63%synergy
Merrow Commerce
65%inclusion46 decks71 decks
64%synergy
Tide Shaper
62%inclusion44 decks71 decks
61%synergy
Kindred Discovery
61%inclusion43 decks71 decks
54%synergy
Game Changers
Cyclonic Rift
31%inclusion22 decks71 decks
-4%synergy
Thassa's Oracle
28%inclusion20 decks71 decks
15%synergy
Rhystic Study
25%inclusion18 decks71 decks
-8%synergy
Fierce Guardianship
17%inclusion12 decks71 decks
-6%synergy
Force of Will
15%inclusion11 decks71 decks
-2%synergy
Mystical Tutor
8.5%inclusion6 decks71 decks
-16%synergy
Creatures
Tishana's Tidebinder
61%inclusion43 decks71 decks
56%synergy
Harbinger of the Tides
61%inclusion43 decks71 decks
59%synergy
Merfolk Trickster
61%inclusion43 decks71 decks
59%synergy
Mist Dancer
59%inclusion42 decks71 decks
58%synergy
Deepchannel Mentor
58%inclusion41 decks71 decks
56%synergy
Silvergill Adept
55%inclusion39 decks71 decks
54%synergy
Coralhelm Commander
54%inclusion38 decks71 decks
53%synergy
Harbinger of the Seas
53%inclusion37 decks70 decks
44%synergy
Thada Adel, Acquisitor
52%inclusion37 decks71 decks
50%synergy
Seahunter
48%inclusion34 decks71 decks
47%synergy
Triton Shorestalker
45%inclusion32 decks71 decks
43%synergy
True-Name Nemesis
44%inclusion31 decks71 decks
43%synergy
Wanderwine Prophets
44%inclusion31 decks71 decks
43%synergy
Master of Waves
42%inclusion30 decks71 decks
38%synergy
Mist-Cloaked Herald
39%inclusion28 decks71 decks
37%synergy
Streambed Aquitects
37%inclusion26 decks71 decks
36%synergy
Tempest Caller
37%inclusion26 decks71 decks
36%synergy
Wake Thrasher
35%inclusion25 decks71 decks
35%synergy
Rishadan Dockhand
34%inclusion24 decks71 decks
33%synergy
Cosi's Trickster
32%inclusion23 decks71 decks
32%synergy
Sea Scryer
31%inclusion22 decks71 decks
30%synergy
Mistcaller
30%inclusion21 decks71 decks
29%synergy
Thassa, God of the Sea
30%inclusion21 decks71 decks
26%synergy
Cursecatcher
30%inclusion21 decks71 decks
28%synergy
Summon: Leviathan
29%inclusion14 decks48 decks
28%synergy
Floodpits Drowner
29%inclusion20 decks69 decks
28%synergy
River Sneak
28%inclusion20 decks71 decks
28%synergy
Kiora, the Rising Tide
28%inclusion19 decks69 decks
24%synergy
Mindspring Merfolk
26%inclusion18 decks68 decks
26%synergy
Surgespanner
24%inclusion17 decks71 decks
23%synergy
Merfolk Looter
23%inclusion16 decks71 decks
20%synergy
Stormtide Leviathan
21%inclusion15 decks71 decks
14%synergy
Empress Galina
21%inclusion15 decks71 decks
20%synergy
Reef Shaman
20%inclusion14 decks71 decks
19%synergy
Tidal Warrior
20%inclusion14 decks71 decks
19%synergy
Talrand, Sky Summoner
20%inclusion14 decks71 decks
6%synergy
Glasspool Mimic
18%inclusion13 decks71 decks
12%synergy
Sigil Tracer
18%inclusion13 decks71 decks
17%synergy
Alandra, Sky Dreamer
18%inclusion13 decks71 decks
12%synergy
Enduring Curiosity
16%inclusion11 decks70 decks
10%synergy
Forensic Researcher
15%inclusion11 decks71 decks
14%synergy
Metallic Mimic
14%inclusion10 decks71 decks
13%synergy
Roaming Throne
14%inclusion10 decks71 decks
10%synergy
Enclave Cryptologist
14%inclusion10 decks71 decks
13%synergy
Gray Harbor Merfolk
14%inclusion10 decks71 decks
14%synergy
Tideshaper Mystic
13%inclusion9 decks71 decks
12%synergy
Benthic Biomancer
13%inclusion9 decks71 decks
12%synergy
Merfolk Windrobber
13%inclusion9 decks71 decks
12%synergy
Tidebinder Mage
13%inclusion9 decks71 decks
12%synergy
Defiler of Dreams
13%inclusion9 decks71 decks
4%synergy
Instants
High Tide
52%inclusion37 decks71 decks
8%synergy
Pongify
51%inclusion36 decks71 decks
11%synergy
Negate
46%inclusion33 decks71 decks
8%synergy
Rapid Hybridization
45%inclusion32 decks71 decks
11%synergy
An Offer You Can't Refuse
37%inclusion26 decks71 decks
0%synergy
Reality Shift
34%inclusion24 decks71 decks
6%synergy
Aetherize
34%inclusion24 decks71 decks
6%synergy
Resculpt
34%inclusion24 decks71 decks
15%synergy
Arcane Denial
32%inclusion23 decks71 decks
-4%synergy
Sink into Stupor
31%inclusion22 decks70 decks
10%synergy
Swan Song
28%inclusion20 decks71 decks
2%synergy
Flare of Denial
27%inclusion19 decks70 decks
20%synergy
Thassa's Rebuff
27%inclusion19 decks71 decks
26%synergy
Brainstorm
25%inclusion18 decks71 decks
-16%synergy
Filter Out
23%inclusion16 decks71 decks
18%synergy
Archmage's Charm
21%inclusion15 decks71 decks
5%synergy
Flow of Knowledge
20%inclusion14 decks71 decks
3%synergy
Cryptic Command
17%inclusion12 decks71 decks
5%synergy
March of Swirling Mist
15%inclusion11 decks71 decks
7%synergy
Strix Serenade
14%inclusion10 decks70 decks
5%synergy
Frantic Search
14%inclusion10 decks71 decks
-16%synergy
Opt
14%inclusion10 decks71 decks
-11%synergy
Engulf the Shore
14%inclusion10 decks71 decks
6%synergy
Spell Pierce
14%inclusion10 decks71 decks
6%synergy
Mana Drain
14%inclusion10 decks71 decks
-13%synergy
Disallow
13%inclusion9 decks71 decks
6%synergy
Saw It Coming
11%inclusion8 decks71 decks
8%synergy
Force of Negation
10%inclusion7 decks71 decks
-6%synergy
Narset's Reversal
10%inclusion7 decks71 decks
-2%synergy
Three Steps Ahead
8.6%inclusion6 decks70 decks
-1%synergy
Into the Flood Maw
8.6%inclusion6 decks70 decks
3%synergy
Aetherspouts
8.5%inclusion6 decks71 decks
1%synergy
Foil
8.5%inclusion6 decks71 decks
3%synergy
Jwari Disruption
8.5%inclusion6 decks71 decks
4%synergy
Wash Away
8.5%inclusion6 decks71 decks
4%synergy
Snap
8.5%inclusion6 decks71 decks
-10%synergy
Muddle the Mixture
7.0%inclusion5 decks71 decks
-9%synergy
Slip Out the Back
7.0%inclusion5 decks71 decks
-1%synergy
Misdirection
7.0%inclusion5 decks71 decks
2%synergy
Mystic Confluence
7.0%inclusion5 decks71 decks
-3%synergy
Thassa's Intervention
7.0%inclusion5 decks71 decks
6%synergy
Mystic Reflection
5.6%inclusion4 decks71 decks
4%synergy
Flusterstorm
5.6%inclusion4 decks71 decks
-4%synergy
Dispel
5.6%inclusion4 decks71 decks
-4%synergy
Sorceries
Aquitect's Will
48%inclusion34 decks71 decks
43%synergy
Distant Melody
44%inclusion31 decks71 decks
39%synergy
Raise the Palisade
34%inclusion24 decks71 decks
31%synergy
Ponder
31%inclusion22 decks71 decks
1%synergy
Spectral Deluge
27%inclusion19 decks71 decks
16%synergy
Preordain
17%inclusion12 decks71 decks
-7%synergy
Rite of Replication
17%inclusion12 decks71 decks
10%synergy
Sea Gate Restoration
15%inclusion11 decks71 decks
1%synergy
Ravenform
15%inclusion11 decks71 decks
6%synergy
Windfall
10%inclusion7 decks71 decks
-13%synergy
Step Through
10%inclusion7 decks71 decks
4%synergy
Chart a Course
8.5%inclusion6 decks71 decks
4%synergy
Crashing Tide
8.5%inclusion6 decks71 decks
8%synergy
Curse of the Swine
8.5%inclusion6 decks71 decks
-3%synergy
River's Rebuke
8.5%inclusion6 decks71 decks
5%synergy
Flow of Ideas
8.5%inclusion6 decks71 decks
4%synergy
Inundate
7.0%inclusion5 decks71 decks
5%synergy
Lórien Revealed
7.0%inclusion5 decks71 decks
-2%synergy
Wash Out
7.0%inclusion5 decks71 decks
2%synergy
Treasure Cruise
5.6%inclusion4 decks71 decks
-6%synergy
Retraced Image
5.6%inclusion4 decks71 decks
3%synergy
Quasiduplicate
5.6%inclusion4 decks71 decks
3%synergy
Utility Artifacts
Herald's Horn
34%inclusion24 decks71 decks
32%synergy
Vanquisher's Banner
28%inclusion20 decks71 decks
27%synergy
Quicksilver Fountain
27%inclusion19 decks71 decks
25%synergy
Kefnet's Monument
24%inclusion17 decks71 decks
17%synergy
Lightning Greaves
24%inclusion17 decks71 decks
-2%synergy
Aether Vial
20%inclusion14 decks71 decks
19%synergy
Banner of Kinship
17%inclusion12 decks69 decks
15%synergy
Wayfarer's Bauble
15%inclusion11 decks71 decks
-3%synergy
Coat of Arms
15%inclusion11 decks71 decks
14%synergy
Door of Destinies
13%inclusion9 decks71 decks
12%synergy
Swiftfoot Boots
10%inclusion7 decks71 decks
-18%synergy
The Indomitable
8.5%inclusion6 decks71 decks
6%synergy
Urza's Incubator
8.5%inclusion6 decks71 decks
7%synergy
Sword of the Animist
7.0%inclusion5 decks71 decks
2%synergy
The Water Crystal
6.4%inclusion3 decks47 decks
-4%synergy
Icon of Ancestry
5.6%inclusion4 decks71 decks
5%synergy
Helm of the Host
5.6%inclusion4 decks71 decks
2%synergy
Enchantments
Reflections of Littjara
48%inclusion34 decks71 decks
44%synergy
Spreading Seas
41%inclusion29 decks71 decks
40%synergy
Mystic Remora
31%inclusion22 decks71 decks
4%synergy
Reconnaissance Mission
30%inclusion21 decks71 decks
23%synergy
Coastal Piracy
24%inclusion17 decks71 decks
20%synergy
Imprisoned in the Moon
18%inclusion13 decks71 decks
6%synergy
Curiosity
17%inclusion12 decks71 decks
14%synergy
Military Intelligence
17%inclusion12 decks71 decks
16%synergy
Intruder Alarm
11%inclusion8 decks71 decks
8%synergy
Wizard Class
11%inclusion8 decks71 decks
-5%synergy
Sea's Claim
11%inclusion8 decks71 decks
11%synergy
Aquatic Incursion
11%inclusion8 decks71 decks
11%synergy
Back to Basics
10%inclusion7 decks71 decks
2%synergy
Propaganda
10%inclusion7 decks71 decks
-20%synergy
Leyline of Anticipation
8.5%inclusion6 decks71 decks
-1%synergy
Eaten by Piranhas
7.0%inclusion5 decks71 decks
4%synergy
Amphibian Downpour
5.7%inclusion4 decks70 decks
0%synergy
Teferi's Ageless Insight
5.6%inclusion4 decks71 decks
-11%synergy
Ominous Seas
5.6%inclusion4 decks71 decks
-5%synergy
Combat Research
5.6%inclusion4 decks71 decks
3%synergy
Utility Lands
Mystic Sanctuary
61%inclusion43 decks71 decks
10%synergy
Reliquary Tower
61%inclusion43 decks71 decks
4%synergy
Nykthos, Shrine to Nyx
34%inclusion24 decks71 decks
18%synergy
Castle Vantress
32%inclusion23 decks71 decks
13%synergy
Otawara, Soaring City
30%inclusion21 decks71 decks
4%synergy
Three Tree City
27%inclusion19 decks70 decks
24%synergy
Mutavault
24%inclusion17 decks71 decks
23%synergy
Rogue's Passage
24%inclusion17 decks71 decks
9%synergy
Minamo, School at Water's Edge
20%inclusion14 decks71 decks
8%synergy
Scavenger Grounds
20%inclusion14 decks71 decks
12%synergy
Halimar Depths
17%inclusion12 decks71 decks
7%synergy
Lonely Sandbar
17%inclusion12 decks71 decks
2%synergy
Rivendell
14%inclusion10 decks71 decks
2%synergy
Riptide Laboratory
14%inclusion10 decks71 decks
4%synergy
War Room
13%inclusion9 decks71 decks
-4%synergy
Temple of the False God
11%inclusion8 decks71 decks
1%synergy
Ghost Quarter
8.5%inclusion6 decks71 decks
6%synergy
Cephalid Coliseum
8.5%inclusion6 decks71 decks
0%synergy
Mistrise Village
8.1%inclusion5 decks62 decks
-1%synergy
Archway of Innovation
7.1%inclusion5 decks70 decks
-4%synergy
Svyelunite Temple
7.0%inclusion5 decks71 decks
6%synergy
Remote Isle
7.0%inclusion5 decks71 decks
2%synergy
Hall of Storm Giants
5.6%inclusion4 decks71 decks
3%synergy
Academy Ruins
5.6%inclusion4 decks71 decks
-13%synergy
Terrain Generator
5.6%inclusion4 decks71 decks
-2%synergy
Saprazzan Skerry
5.6%inclusion4 decks71 decks
3%synergy
Mana Artifacts
Sol Ring
80%inclusion57 decks71 decks
-5%synergy
Arcane Signet
66%inclusion47 decks71 decks
1%synergy
Thought Vessel
38%inclusion27 decks71 decks
-14%synergy
Patchwork Banner
36%inclusion25 decks70 decks
32%synergy
Heraldic Banner
27%inclusion19 decks71 decks
21%synergy
Caged Sun
20%inclusion14 decks71 decks
8%synergy
Sky Diamond
20%inclusion14 decks71 decks
-4%synergy
Mind Stone
18%inclusion13 decks71 decks
-18%synergy
Fellwar Stone
14%inclusion10 decks71 decks
-6%synergy
Nyx Lotus
11%inclusion8 decks71 decks
7%synergy
Midnight Clock
11%inclusion8 decks71 decks
-9%synergy
Decanter of Endless Water
10%inclusion7 decks71 decks
-5%synergy
Gauntlet of Power
8.5%inclusion6 decks71 decks
4%synergy
Springleaf Drum
8.5%inclusion6 decks71 decks
5%synergy
Commander's Sphere
7.0%inclusion5 decks71 decks
-3%synergy
Gilded Lotus
7.0%inclusion5 decks71 decks
-4%synergy
Lands
Island
97%inclusion69 decks71 decks
4%synergy
Path of Ancestry
35%inclusion25 decks71 decks
31%synergy
Sink into Stupor
31%inclusion22 decks70 decks
10%synergy
Cavern of Souls
24%inclusion17 decks71 decks
19%synergy
Myriad Landscape
21%inclusion15 decks71 decks
-5%synergy
Glasspool Mimic
18%inclusion13 decks71 decks
12%synergy
Sea Gate Restoration
15%inclusion11 decks71 decks
1%synergy
Hydroelectric Specimen
11%inclusion8 decks70 decks
-2%synergy
Jwari Disruption
8.5%inclusion6 decks71 decks
4%synergy
Polluted Delta
8.5%inclusion6 decks71 decks
0%synergy
Flooded Strand
8.5%inclusion6 decks71 decks
0%synergy
Misty Rainforest
7.0%inclusion5 decks71 decks
-1%synergy
Umara Wizard
7.0%inclusion5 decks71 decks
7%synergy
Demolition Field
7.0%inclusion5 decks71 decks
2%synergy
Scalding Tarn
7.0%inclusion5 decks71 decks
-1%synergy
Terramorphic Expanse
5.6%inclusion4 decks71 decks
2%synergy
Snow-Covered Island
5.6%inclusion4 decks71 decks
-2%synergy
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