Svyelun of Sea and Sky (Commander) - Upgraded

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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Harmonized Crescendo
36%inclusion5 decks14 decks
33%synergy
Champions of the Shoal
33%inclusion4 decks12 decks
33%synergy
Disruptor of Currents
29%inclusion4 decks14 decks
28%synergy
Chronicle of Victory
29%inclusion4 decks14 decks
28%synergy
Namor the Sub-Mariner
16%inclusion3 decks19 decks
16%synergy
High Synergy Cards
Master of the Pearl Trident
91%inclusion69 decks76 decks
89%synergy
Merrow Reejerey
89%inclusion68 decks76 decks
88%synergy
Merfolk Sovereign
89%inclusion68 decks76 decks
88%synergy
Seafloor Oracle
88%inclusion67 decks76 decks
87%synergy
Emperor Mihail II
87%inclusion66 decks76 decks
86%synergy
Kopala, Warden of Waves
84%inclusion64 decks76 decks
83%synergy
Stonybrook Banneret
86%inclusion65 decks76 decks
82%synergy
Vodalian Hexcatcher
83%inclusion63 decks76 decks
81%synergy
Lord of Atlantis
79%inclusion60 decks76 decks
78%synergy
Deeproot Pilgrimage
72%inclusion55 decks76 decks
71%synergy
Top Cards
Counterspell
76%inclusion58 decks76 decks
10%synergy
Thieving Skydiver
74%inclusion56 decks76 decks
70%synergy
Sapphire Medallion
70%inclusion53 decks76 decks
11%synergy
Deeproot Waters
68%inclusion52 decks76 decks
67%synergy
Bident of Thassa
68%inclusion52 decks76 decks
57%synergy
Tide Shaper
63%inclusion48 decks76 decks
62%synergy
Merrow Commerce
62%inclusion47 decks76 decks
61%synergy
Lullmage Mentor
62%inclusion47 decks76 decks
60%synergy
Tishana's Tidebinder
61%inclusion46 decks76 decks
56%synergy
Merfolk Trickster
61%inclusion46 decks76 decks
59%synergy
Game Changers
Cyclonic Rift
30%inclusion23 decks76 decks
-4%synergy
Rhystic Study
28%inclusion21 decks76 decks
-5%synergy
Thassa's Oracle
28%inclusion21 decks76 decks
15%synergy
Fierce Guardianship
17%inclusion13 decks76 decks
-6%synergy
Force of Will
13%inclusion10 decks76 decks
-4%synergy
Mystical Tutor
7.9%inclusion6 decks76 decks
-15%synergy
Creatures
Merrow Harbinger
61%inclusion46 decks76 decks
59%synergy
Harbinger of the Tides
58%inclusion44 decks76 decks
57%synergy
Mist Dancer
57%inclusion43 decks76 decks
56%synergy
Deepchannel Mentor
54%inclusion41 decks76 decks
53%synergy
Silvergill Adept
54%inclusion41 decks76 decks
53%synergy
Coralhelm Commander
51%inclusion39 decks76 decks
51%synergy
Thada Adel, Acquisitor
49%inclusion37 decks76 decks
47%synergy
Triton Shorestalker
47%inclusion36 decks76 decks
45%synergy
Harbinger of the Seas
45%inclusion34 decks75 decks
36%synergy
Wanderwine Prophets
45%inclusion34 decks76 decks
44%synergy
Seahunter
43%inclusion33 decks76 decks
43%synergy
Master of Waves
42%inclusion32 decks76 decks
38%synergy
True-Name Nemesis
41%inclusion31 decks76 decks
40%synergy
Mist-Cloaked Herald
41%inclusion31 decks76 decks
38%synergy
Tempest Caller
36%inclusion27 decks76 decks
35%synergy
Streambed Aquitects
36%inclusion27 decks76 decks
35%synergy
Summon: Leviathan
34%inclusion19 decks56 decks
32%synergy
Wake Thrasher
33%inclusion25 decks76 decks
32%synergy
Rishadan Dockhand
32%inclusion24 decks76 decks
31%synergy
River Sneak
32%inclusion24 decks76 decks
31%synergy
Mindspring Merfolk
32%inclusion23 decks73 decks
31%synergy
Floodpits Drowner
31%inclusion23 decks74 decks
30%synergy
Thassa, God of the Sea
29%inclusion22 decks76 decks
25%synergy
Sea Scryer
28%inclusion21 decks76 decks
27%synergy
Kiora, the Rising Tide
27%inclusion20 decks74 decks
24%synergy
Cursecatcher
26%inclusion20 decks76 decks
25%synergy
Cosi's Trickster
26%inclusion20 decks76 decks
26%synergy
Mistcaller
26%inclusion20 decks76 decks
25%synergy
Surgespanner
24%inclusion18 decks76 decks
23%synergy
Merfolk Looter
24%inclusion18 decks76 decks
21%synergy
Tidal Warrior
21%inclusion16 decks76 decks
21%synergy
Alandra, Sky Dreamer
21%inclusion16 decks76 decks
14%synergy
Empress Galina
20%inclusion15 decks76 decks
19%synergy
Talrand, Sky Summoner
20%inclusion15 decks76 decks
6%synergy
Reef Shaman
17%inclusion13 decks76 decks
17%synergy
Glasspool Mimic
17%inclusion13 decks76 decks
11%synergy
Stormtide Leviathan
17%inclusion13 decks76 decks
10%synergy
Metallic Mimic
17%inclusion13 decks76 decks
16%synergy
Enduring Curiosity
16%inclusion12 decks75 decks
10%synergy
Sigil Tracer
16%inclusion12 decks76 decks
15%synergy
Benthic Biomancer
16%inclusion12 decks76 decks
15%synergy
Merfolk Windrobber
16%inclusion12 decks76 decks
15%synergy
Attuma, Atlantean Warlord
16%inclusion3 decks19 decks
15%synergy
Roaming Throne
14%inclusion11 decks76 decks
10%synergy
Fallowsage
14%inclusion11 decks76 decks
14%synergy
Silvergill Mentor
14%inclusion2 decks14 decks
14%synergy
Gray Harbor Merfolk
13%inclusion10 decks76 decks
13%synergy
Forensic Researcher
13%inclusion10 decks76 decks
12%synergy
Enclave Cryptologist
13%inclusion10 decks76 decks
12%synergy
Library Larcenist
12%inclusion9 decks76 decks
11%synergy
Instants
High Tide
47%inclusion36 decks76 decks
3%synergy
Negate
47%inclusion36 decks76 decks
9%synergy
Pongify
46%inclusion35 decks76 decks
6%synergy
Rapid Hybridization
42%inclusion32 decks76 decks
8%synergy
Aetherize
33%inclusion25 decks76 decks
4%synergy
An Offer You Can't Refuse
32%inclusion24 decks76 decks
-5%synergy
Brainstorm
32%inclusion24 decks76 decks
-10%synergy
Sink into Stupor
29%inclusion22 decks75 decks
8%synergy
Resculpt
29%inclusion22 decks76 decks
11%synergy
Arcane Denial
29%inclusion22 decks76 decks
-7%synergy
Reality Shift
26%inclusion20 decks76 decks
-1%synergy
Flare of Denial
23%inclusion17 decks75 decks
16%synergy
Swan Song
22%inclusion17 decks76 decks
-4%synergy
Thassa's Rebuff
22%inclusion17 decks76 decks
21%synergy
Filter Out
21%inclusion16 decks76 decks
17%synergy
Flow of Knowledge
18%inclusion14 decks76 decks
2%synergy
Archmage's Charm
17%inclusion13 decks76 decks
0%synergy
Opt
14%inclusion11 decks76 decks
-11%synergy
Mana Drain
14%inclusion11 decks76 decks
-12%synergy
March of Swirling Mist
14%inclusion11 decks76 decks
7%synergy
Cryptic Command
14%inclusion11 decks76 decks
3%synergy
Spell Pierce
14%inclusion11 decks76 decks
6%synergy
Disallow
13%inclusion10 decks76 decks
6%synergy
Saw It Coming
12%inclusion9 decks76 decks
9%synergy
Frantic Search
12%inclusion9 decks76 decks
-18%synergy
Strix Serenade
11%inclusion8 decks75 decks
1%synergy
Wash Away
11%inclusion8 decks76 decks
6%synergy
Engulf the Shore
11%inclusion8 decks76 decks
2%synergy
Aetherspouts
9.2%inclusion7 decks76 decks
2%synergy
Force of Negation
9.2%inclusion7 decks76 decks
-6%synergy
Narset's Reversal
9.2%inclusion7 decks76 decks
-3%synergy
Thassa's Intervention
9.2%inclusion7 decks76 decks
8%synergy
Three Steps Ahead
8.0%inclusion6 decks75 decks
-2%synergy
Into the Flood Maw
8.0%inclusion6 decks75 decks
2%synergy
Slip Out the Back
7.9%inclusion6 decks76 decks
0%synergy
Muddle the Mixture
7.9%inclusion6 decks76 decks
-8%synergy
Snap
7.9%inclusion6 decks76 decks
-11%synergy
Mystic Reflection
6.6%inclusion5 decks76 decks
5%synergy
Dispel
6.6%inclusion5 decks76 decks
-3%synergy
Misdirection
6.6%inclusion5 decks76 decks
1%synergy
Foil
6.6%inclusion5 decks76 decks
1%synergy
Jwari Disruption
6.6%inclusion5 decks76 decks
2%synergy
Mystic Confluence
6.6%inclusion5 decks76 decks
-3%synergy
Consider
5.3%inclusion4 decks76 decks
-9%synergy
Mystical Dispute
5.3%inclusion4 decks76 decks
5%synergy
Silundi Vision
5.3%inclusion4 decks76 decks
0%synergy
Sorceries
Aquitect's Will
47%inclusion36 decks76 decks
42%synergy
Distant Melody
46%inclusion35 decks76 decks
41%synergy
Ponder
32%inclusion24 decks76 decks
2%synergy
Raise the Palisade
32%inclusion24 decks76 decks
28%synergy
Spectral Deluge
29%inclusion22 decks76 decks
18%synergy
Preordain
21%inclusion16 decks76 decks
-3%synergy
Rite of Replication
17%inclusion13 decks76 decks
10%synergy
Ravenform
14%inclusion11 decks76 decks
5%synergy
Sea Gate Restoration
12%inclusion9 decks76 decks
-3%synergy
Crashing Tide
11%inclusion8 decks76 decks
10%synergy
Curse of the Swine
11%inclusion8 decks76 decks
-1%synergy
Step Through
11%inclusion8 decks76 decks
5%synergy
Chart a Course
9.2%inclusion7 decks76 decks
5%synergy
Windfall
7.9%inclusion6 decks76 decks
-15%synergy
Wanderwine Farewell
7.1%inclusion1 decks14 decks
7%synergy
Inundate
6.6%inclusion5 decks76 decks
5%synergy
River's Rebuke
6.6%inclusion5 decks76 decks
3%synergy
Wash Out
6.6%inclusion5 decks76 decks
2%synergy
Flow of Ideas
6.6%inclusion5 decks76 decks
2%synergy
Retraced Image
5.3%inclusion4 decks76 decks
2%synergy
Consuming Tide
5.3%inclusion4 decks76 decks
2%synergy
Treasure Cruise
5.3%inclusion4 decks76 decks
-6%synergy
Serum Visions
5.3%inclusion4 decks76 decks
-5%synergy
Lórien Revealed
5.3%inclusion4 decks76 decks
-4%synergy
Quasiduplicate
5.3%inclusion4 decks76 decks
2%synergy
Irenicus's Vile Duplication
5.3%inclusion4 decks76 decks
-3%synergy
Utility Artifacts
Herald's Horn
32%inclusion24 decks76 decks
30%synergy
Vanquisher's Banner
26%inclusion20 decks76 decks
25%synergy
Kefnet's Monument
24%inclusion18 decks76 decks
17%synergy
Lightning Greaves
24%inclusion18 decks76 decks
-2%synergy
Quicksilver Fountain
21%inclusion16 decks76 decks
19%synergy
Aether Vial
17%inclusion13 decks76 decks
17%synergy
Wayfarer's Bauble
17%inclusion13 decks76 decks
-1%synergy
Banner of Kinship
16%inclusion12 decks74 decks
14%synergy
Coat of Arms
14%inclusion11 decks76 decks
13%synergy
Door of Destinies
13%inclusion10 decks76 decks
12%synergy
Waterbending Scroll
11%inclusion3 decks27 decks
2%synergy
Swiftfoot Boots
11%inclusion8 decks76 decks
-18%synergy
Icon of Ancestry
7.9%inclusion6 decks76 decks
7%synergy
Urza's Incubator
7.9%inclusion6 decks76 decks
7%synergy
Sword of the Animist
7.9%inclusion6 decks76 decks
2%synergy
The Indomitable
7.9%inclusion6 decks76 decks
6%synergy
The Water Crystal
5.5%inclusion3 decks55 decks
-5%synergy
Winter Moon
5.3%inclusion4 decks75 decks
1%synergy
Helm of the Host
5.3%inclusion4 decks76 decks
2%synergy
Enchantments
Kindred Discovery
58%inclusion44 decks76 decks
51%synergy
Reflections of Littjara
50%inclusion38 decks76 decks
47%synergy
Spreading Seas
39%inclusion30 decks76 decks
38%synergy
Mystic Remora
30%inclusion23 decks76 decks
3%synergy
Reconnaissance Mission
25%inclusion19 decks76 decks
18%synergy
Coastal Piracy
24%inclusion18 decks76 decks
19%synergy
Curiosity
17%inclusion13 decks76 decks
14%synergy
Imprisoned in the Moon
16%inclusion12 decks76 decks
4%synergy
Wizard Class
13%inclusion10 decks76 decks
-4%synergy
Military Intelligence
12%inclusion9 decks76 decks
11%synergy
Aquatic Incursion
12%inclusion9 decks76 decks
12%synergy
Propaganda
12%inclusion9 decks76 decks
-18%synergy
Intruder Alarm
11%inclusion8 decks76 decks
7%synergy
Leyline of Anticipation
9.2%inclusion7 decks76 decks
0%synergy
Sea's Claim
9.2%inclusion7 decks76 decks
9%synergy
Back to Basics
7.9%inclusion6 decks76 decks
1%synergy
Ominous Seas
6.6%inclusion5 decks76 decks
-4%synergy
Combat Research
6.6%inclusion5 decks76 decks
4%synergy
Eaten by Piranhas
5.3%inclusion4 decks76 decks
2%synergy
Teferi's Ageless Insight
5.3%inclusion4 decks76 decks
-12%synergy
Utility Lands
Mystic Sanctuary
62%inclusion47 decks76 decks
11%synergy
Reliquary Tower
55%inclusion42 decks76 decks
-1%synergy
Castle Vantress
32%inclusion24 decks76 decks
13%synergy
Nykthos, Shrine to Nyx
29%inclusion22 decks76 decks
13%synergy
Rogue's Passage
25%inclusion19 decks76 decks
10%synergy
Three Tree City
24%inclusion18 decks75 decks
20%synergy
Otawara, Soaring City
24%inclusion18 decks76 decks
-2%synergy
Mutavault
22%inclusion17 decks76 decks
21%synergy
Lonely Sandbar
21%inclusion16 decks76 decks
7%synergy
Halimar Depths
20%inclusion15 decks76 decks
10%synergy
Scavenger Grounds
17%inclusion13 decks76 decks
10%synergy
Minamo, School at Water's Edge
16%inclusion12 decks76 decks
3%synergy
Riptide Laboratory
13%inclusion10 decks76 decks
3%synergy
Rivendell
11%inclusion8 decks76 decks
-1%synergy
War Room
11%inclusion8 decks76 decks
-5%synergy
Temple of the False God
11%inclusion8 decks76 decks
0%synergy
Ghost Quarter
9.2%inclusion7 decks76 decks
7%synergy
Cephalid Coliseum
7.9%inclusion6 decks76 decks
-1%synergy
Mistrise Village
7.5%inclusion5 decks67 decks
-2%synergy
Agna Qel'a
7.4%inclusion2 decks27 decks
0%synergy
Terrain Generator
6.6%inclusion5 decks76 decks
-1%synergy
Hall of Storm Giants
6.6%inclusion5 decks76 decks
4%synergy
Svyelunite Temple
6.6%inclusion5 decks76 decks
6%synergy
Academy Ruins
6.6%inclusion5 decks76 decks
-12%synergy
Remote Isle
6.6%inclusion5 decks76 decks
2%synergy
Coral Atoll
6.6%inclusion5 decks76 decks
3%synergy
Archway of Innovation
5.3%inclusion4 decks75 decks
-5%synergy
Saprazzan Skerry
5.3%inclusion4 decks76 decks
2%synergy
Access Tunnel
5.3%inclusion4 decks76 decks
4%synergy
Desert of the Mindful
5.3%inclusion4 decks76 decks
2%synergy
Mana Artifacts
Sol Ring
82%inclusion62 decks76 decks
-4%synergy
Arcane Signet
66%inclusion50 decks76 decks
1%synergy
Thought Vessel
38%inclusion29 decks76 decks
-14%synergy
Patchwork Banner
33%inclusion25 decks75 decks
30%synergy
Heraldic Banner
26%inclusion20 decks76 decks
21%synergy
Mind Stone
21%inclusion16 decks76 decks
-15%synergy
Caged Sun
20%inclusion15 decks76 decks
8%synergy
Sky Diamond
18%inclusion14 decks76 decks
-5%synergy
Fellwar Stone
13%inclusion10 decks76 decks
-7%synergy
Midnight Clock
11%inclusion8 decks76 decks
-10%synergy
Nyx Lotus
9.2%inclusion7 decks76 decks
5%synergy
Commander's Sphere
9.2%inclusion7 decks76 decks
0%synergy
Springleaf Drum
7.9%inclusion6 decks76 decks
5%synergy
Gauntlet of Power
6.6%inclusion5 decks76 decks
2%synergy
Decanter of Endless Water
6.6%inclusion5 decks76 decks
-8%synergy
Gilded Lotus
6.6%inclusion5 decks76 decks
-5%synergy
Throne of Eldraine
5.3%inclusion4 decks76 decks
-4%synergy
Lands
Island
97%inclusion74 decks76 decks
4%synergy
Path of Ancestry
37%inclusion28 decks76 decks
33%synergy
Sink into Stupor
29%inclusion22 decks75 decks
8%synergy
Cavern of Souls
24%inclusion18 decks76 decks
19%synergy
Myriad Landscape
20%inclusion15 decks76 decks
-6%synergy
Glasspool Mimic
17%inclusion13 decks76 decks
11%synergy
Sea Gate Restoration
12%inclusion9 decks76 decks
-3%synergy
Hydroelectric Specimen
9.3%inclusion7 decks75 decks
-4%synergy
Umara Wizard
7.9%inclusion6 decks76 decks
8%synergy
Polluted Delta
6.6%inclusion5 decks76 decks
-2%synergy
Jwari Disruption
6.6%inclusion5 decks76 decks
2%synergy
Flooded Strand
6.6%inclusion5 decks76 decks
-2%synergy
Misty Rainforest
5.3%inclusion4 decks76 decks
-3%synergy
Demolition Field
5.3%inclusion4 decks76 decks
0%synergy
Terramorphic Expanse
5.3%inclusion4 decks76 decks
2%synergy
Evolving Wilds
5.3%inclusion4 decks76 decks
1%synergy
Silundi Vision
5.3%inclusion4 decks76 decks
0%synergy
Scalding Tarn
5.3%inclusion4 decks76 decks
-3%synergy
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