Svyelun of Sea and Sky (Commander) - 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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White Lotus Tile
20%inclusion1 decks5 decks
19%synergy
High Synergy Cards
Master of the Pearl Trident
94%inclusion30 decks32 decks
92%synergy
Emperor Mihail II
88%inclusion28 decks32 decks
87%synergy
Merfolk Sovereign
88%inclusion28 decks32 decks
86%synergy
Lord of Atlantis
84%inclusion27 decks32 decks
83%synergy
Seafloor Oracle
84%inclusion27 decks32 decks
83%synergy
Kopala, Warden of Waves
84%inclusion27 decks32 decks
83%synergy
Deeproot Waters
81%inclusion26 decks32 decks
80%synergy
Vodalian Hexcatcher
81%inclusion26 decks32 decks
80%synergy
Merrow Reejerey
81%inclusion26 decks32 decks
80%synergy
Stonybrook Banneret
81%inclusion26 decks32 decks
78%synergy
Top Cards
Lullmage Mentor
75%inclusion24 decks32 decks
73%synergy
Merrow Commerce
72%inclusion23 decks32 decks
71%synergy
Counterspell
72%inclusion23 decks32 decks
5%synergy
Sapphire Medallion
69%inclusion22 decks32 decks
12%synergy
Kindred Discovery
66%inclusion21 decks32 decks
59%synergy
Harbinger of the Seas
63%inclusion19 decks30 decks
54%synergy
Deeproot Pilgrimage
63%inclusion20 decks32 decks
61%synergy
Thada Adel, Acquisitor
63%inclusion20 decks32 decks
61%synergy
Coralhelm Commander
59%inclusion19 decks32 decks
59%synergy
Bident of Thassa
59%inclusion19 decks32 decks
48%synergy
Game Changers
Cyclonic Rift
53%inclusion17 decks32 decks
18%synergy
Fierce Guardianship
38%inclusion12 decks32 decks
14%synergy
Rhystic Study
31%inclusion10 decks32 decks
-2%synergy
Force of Will
28%inclusion9 decks32 decks
10%synergy
Mystical Tutor
28%inclusion9 decks32 decks
4%synergy
Thassa's Oracle
19%inclusion6 decks32 decks
6%synergy
Consecrated Sphinx
6.3%inclusion2 decks32 decks
-6%synergy
Creatures
Thieving Skydiver
59%inclusion19 decks32 decks
55%synergy
Merrow Harbinger
56%inclusion18 decks32 decks
55%synergy
Tide Shaper
56%inclusion18 decks32 decks
55%synergy
Deepchannel Mentor
53%inclusion17 decks32 decks
52%synergy
Wanderwine Prophets
53%inclusion17 decks32 decks
53%synergy
Harbinger of the Tides
53%inclusion17 decks32 decks
52%synergy
Seahunter
50%inclusion16 decks32 decks
49%synergy
Empress Galina
50%inclusion16 decks32 decks
49%synergy
Tishana's Tidebinder
47%inclusion15 decks32 decks
42%synergy
Tempest Caller
47%inclusion15 decks32 decks
46%synergy
Mist Dancer
47%inclusion15 decks32 decks
46%synergy
Merfolk Trickster
44%inclusion14 decks32 decks
42%synergy
Silvergill Adept
41%inclusion13 decks32 decks
40%synergy
Master of Waves
38%inclusion12 decks32 decks
34%synergy
Streambed Aquitects
38%inclusion12 decks32 decks
37%synergy
River Sneak
38%inclusion12 decks32 decks
37%synergy
Sea Scryer
38%inclusion12 decks32 decks
36%synergy
Summon: Leviathan
36%inclusion5 decks14 decks
34%synergy
Thassa, God of the Sea
34%inclusion11 decks32 decks
31%synergy
Mist-Cloaked Herald
34%inclusion11 decks32 decks
32%synergy
True-Name Nemesis
31%inclusion10 decks32 decks
30%synergy
Triton Shorestalker
31%inclusion10 decks32 decks
29%synergy
Kiora, the Rising Tide
30%inclusion7 decks23 decks
27%synergy
Surgespanner
28%inclusion9 decks32 decks
28%synergy
Cursecatcher
28%inclusion9 decks32 decks
27%synergy
Talrand, Sky Summoner
28%inclusion9 decks32 decks
14%synergy
Wake Thrasher
28%inclusion9 decks32 decks
28%synergy
Stormtide Leviathan
25%inclusion8 decks32 decks
18%synergy
Cosi's Trickster
25%inclusion8 decks32 decks
24%synergy
Floodpits Drowner
25%inclusion6 decks24 decks
24%synergy
Mistcaller
25%inclusion8 decks32 decks
24%synergy
Alandra, Sky Dreamer
25%inclusion8 decks32 decks
18%synergy
Tidal Warrior
25%inclusion8 decks32 decks
24%synergy
Metallic Mimic
22%inclusion7 decks32 decks
21%synergy
Roaming Throne
22%inclusion7 decks32 decks
17%synergy
Rishadan Dockhand
22%inclusion7 decks32 decks
21%synergy
Slinn Voda, the Rising Deep
22%inclusion7 decks32 decks
21%synergy
Mindspring Merfolk
20%inclusion4 decks20 decks
19%synergy
Tideshaper Mystic
19%inclusion6 decks32 decks
18%synergy
Merfolk Looter
19%inclusion6 decks32 decks
16%synergy
Wonder
16%inclusion5 decks32 decks
10%synergy
Sigil Tracer
16%inclusion5 decks32 decks
14%synergy
Eluge, the Shoreless Sea
15%inclusion4 decks26 decks
7%synergy
Adaptive Automaton
13%inclusion4 decks32 decks
11%synergy
Scourge of Fleets
13%inclusion4 decks32 decks
0%synergy
Fallowsage
13%inclusion4 decks32 decks
12%synergy
Glasspool Mimic
13%inclusion4 decks32 decks
6%synergy
Gray Harbor Merfolk
13%inclusion4 decks32 decks
12%synergy
Titan of Littjara
13%inclusion4 decks32 decks
11%synergy
Tidebinder Mage
13%inclusion4 decks32 decks
12%synergy
Instants
Rapid Hybridization
53%inclusion17 decks32 decks
19%synergy
Negate
53%inclusion17 decks32 decks
15%synergy
High Tide
53%inclusion17 decks32 decks
9%synergy
Aetherize
50%inclusion16 decks32 decks
22%synergy
Pongify
41%inclusion13 decks32 decks
0%synergy
Swan Song
38%inclusion12 decks32 decks
11%synergy
An Offer You Can't Refuse
31%inclusion10 decks32 decks
-5%synergy
Mana Drain
31%inclusion10 decks32 decks
4%synergy
Thassa's Rebuff
31%inclusion10 decks32 decks
30%synergy
Reality Shift
28%inclusion9 decks32 decks
0%synergy
Flare of Denial
27%inclusion8 decks30 decks
20%synergy
Brainstorm
25%inclusion8 decks32 decks
-16%synergy
Resculpt
25%inclusion8 decks32 decks
6%synergy
Arcane Denial
25%inclusion8 decks32 decks
-11%synergy
Muddle the Mixture
19%inclusion6 decks32 decks
3%synergy
Engulf the Shore
19%inclusion6 decks32 decks
10%synergy
Spell Pierce
19%inclusion6 decks32 decks
10%synergy
Strix Serenade
17%inclusion5 decks30 decks
7%synergy
Sink into Stupor
17%inclusion5 decks30 decks
-5%synergy
Opt
13%inclusion4 decks32 decks
-13%synergy
Cancel
13%inclusion4 decks32 decks
7%synergy
Archmage's Charm
13%inclusion4 decks32 decks
-4%synergy
Disallow
13%inclusion4 decks32 decks
6%synergy
Filter Out
13%inclusion4 decks32 decks
8%synergy
Cryptic Command
13%inclusion4 decks32 decks
1%synergy
Snap
13%inclusion4 decks32 decks
-6%synergy
Flow of Knowledge
13%inclusion4 decks32 decks
-4%synergy
Narset's Reversal
13%inclusion4 decks32 decks
0%synergy
Unwind
13%inclusion4 decks32 decks
3%synergy
Evacuation
13%inclusion4 decks32 decks
5%synergy
Amazing Acrobatics
13%inclusion1 decks8 decks
11%synergy
Spider-Sense
13%inclusion1 decks8 decks
9%synergy
Frantic Search
9.4%inclusion3 decks32 decks
-20%synergy
Essence Scatter
9.4%inclusion3 decks32 decks
6%synergy
Mystic Reflection
9.4%inclusion3 decks32 decks
7%synergy
Repulse
9.4%inclusion3 decks32 decks
8%synergy
Foil
9.4%inclusion3 decks32 decks
4%synergy
Unsummon
9.4%inclusion3 decks32 decks
5%synergy
Saw It Coming
9.4%inclusion3 decks32 decks
6%synergy
Jwari Disruption
9.4%inclusion3 decks32 decks
5%synergy
Force of Negation
9.4%inclusion3 decks32 decks
-6%synergy
March of Swirling Mist
9.4%inclusion3 decks32 decks
1%synergy
Pact of Negation
9.4%inclusion3 decks32 decks
-1%synergy
Refute
8.7%inclusion2 decks23 decks
3%synergy
Louisoix's Sacrifice
7.1%inclusion1 decks14 decks
6%synergy
Chain of Vapor
6.3%inclusion2 decks32 decks
1%synergy
Forceful Denial
6.3%inclusion2 decks32 decks
6%synergy
Blustersquall
6.3%inclusion2 decks32 decks
5%synergy
Dissolve
6.3%inclusion2 decks32 decks
3%synergy
Cyber Conversion
6.3%inclusion2 decks32 decks
3%synergy
Sorceries
Distant Melody
47%inclusion15 decks32 decks
42%synergy
Aquitect's Will
38%inclusion12 decks32 decks
32%synergy
Raise the Palisade
31%inclusion10 decks32 decks
28%synergy
Crashing Tide
22%inclusion7 decks32 decks
22%synergy
Spectral Deluge
22%inclusion7 decks32 decks
11%synergy
Rite of Replication
19%inclusion6 decks32 decks
12%synergy
Sea Gate Restoration
16%inclusion5 decks32 decks
1%synergy
Ravenform
16%inclusion5 decks32 decks
6%synergy
Ponder
13%inclusion4 decks32 decks
-17%synergy
Windfall
13%inclusion4 decks32 decks
-10%synergy
Curse of the Swine
13%inclusion4 decks32 decks
1%synergy
Sleep
9.4%inclusion3 decks32 decks
8%synergy
Step Through
9.4%inclusion3 decks32 decks
4%synergy
Solve the Equation
9.4%inclusion3 decks32 decks
-4%synergy
Inundate
6.3%inclusion2 decks32 decks
4%synergy
Fabricate
6.3%inclusion2 decks32 decks
-16%synergy
Wash Out
6.3%inclusion2 decks32 decks
1%synergy
Borrowing 100,000 Arrows
6.3%inclusion2 decks32 decks
5%synergy
Preordain
6.3%inclusion2 decks32 decks
-18%synergy
River's Rebuke
6.3%inclusion2 decks32 decks
3%synergy
Maddening Cacophony
6.3%inclusion2 decks32 decks
-1%synergy
Utility Artifacts
Herald's Horn
38%inclusion12 decks32 decks
36%synergy
Vanquisher's Banner
34%inclusion11 decks32 decks
33%synergy
Door of Destinies
28%inclusion9 decks32 decks
27%synergy
Kefnet's Monument
28%inclusion9 decks32 decks
22%synergy
Lightning Greaves
28%inclusion9 decks32 decks
2%synergy
Quicksilver Fountain
22%inclusion7 decks32 decks
20%synergy
Sensei's Divining Top
16%inclusion5 decks32 decks
0%synergy
Coat of Arms
16%inclusion5 decks32 decks
14%synergy
Urza's Incubator
16%inclusion5 decks32 decks
14%synergy
Swiftfoot Boots
16%inclusion5 decks32 decks
-13%synergy
Banner of Kinship
13%inclusion3 decks23 decks
11%synergy
Icon of Ancestry
13%inclusion4 decks32 decks
12%synergy
Wayfarer's Bauble
13%inclusion4 decks32 decks
-6%synergy
Sword of Feast and Famine
13%inclusion4 decks32 decks
11%synergy
Stoneforge Masterwork
9.4%inclusion3 decks32 decks
9%synergy
Sword of the Animist
9.4%inclusion3 decks32 decks
4%synergy
Cryogen Relic
9.1%inclusion1 decks11 decks
5%synergy
Robe of the Archmagi
6.3%inclusion2 decks32 decks
5%synergy
Winged Boots
6.3%inclusion2 decks32 decks
3%synergy
Aether Vial
6.3%inclusion2 decks32 decks
6%synergy
Enchantments
Reflections of Littjara
56%inclusion18 decks32 decks
53%synergy
Mystic Remora
38%inclusion12 decks32 decks
10%synergy
Spreading Seas
31%inclusion10 decks32 decks
30%synergy
Reconnaissance Mission
22%inclusion7 decks32 decks
15%synergy
Imprisoned in the Moon
22%inclusion7 decks32 decks
10%synergy
Aquatic Incursion
22%inclusion7 decks32 decks
22%synergy
Coastal Piracy
19%inclusion6 decks32 decks
15%synergy
Propaganda
16%inclusion5 decks32 decks
-14%synergy
Sea's Claim
16%inclusion5 decks32 decks
15%synergy
Aqueous Form
13%inclusion4 decks32 decks
7%synergy
Wizard Class
13%inclusion4 decks32 decks
-4%synergy
Military Intelligence
13%inclusion4 decks32 decks
11%synergy
Leyline of Anticipation
13%inclusion4 decks32 decks
3%synergy
Eaten by Piranhas
13%inclusion4 decks32 decks
9%synergy
Fishliver Oil
9.4%inclusion3 decks32 decks
9%synergy
Witness Protection
9.4%inclusion3 decks32 decks
4%synergy
Equilibrium
9.4%inclusion3 decks32 decks
9%synergy
Combat Research
9.4%inclusion3 decks32 decks
7%synergy
Amphibian Downpour
6.9%inclusion2 decks29 decks
1%synergy
Back to Basics
6.3%inclusion2 decks32 decks
-2%synergy
Teferi's Ageless Insight
6.3%inclusion2 decks32 decks
-11%synergy
Intruder Alarm
6.3%inclusion2 decks32 decks
3%synergy
Lingering Mirage
6.3%inclusion2 decks32 decks
6%synergy
Utility Lands
Mystic Sanctuary
63%inclusion20 decks32 decks
12%synergy
Nykthos, Shrine to Nyx
41%inclusion13 decks32 decks
25%synergy
Three Tree City
38%inclusion10 decks26 decks
35%synergy
Reliquary Tower
38%inclusion12 decks32 decks
-19%synergy
Castle Vantress
38%inclusion12 decks32 decks
18%synergy
Rivendell
28%inclusion9 decks32 decks
16%synergy
Otawara, Soaring City
28%inclusion9 decks32 decks
3%synergy
Halimar Depths
25%inclusion8 decks32 decks
15%synergy
Minamo, School at Water's Edge
22%inclusion7 decks32 decks
10%synergy
Rogue's Passage
22%inclusion7 decks32 decks
7%synergy
War Room
19%inclusion6 decks32 decks
2%synergy
Lonely Sandbar
19%inclusion6 decks32 decks
4%synergy
Mistrise Village
17%inclusion3 decks18 decks
7%synergy
Riptide Laboratory
16%inclusion5 decks32 decks
5%synergy
Academy Ruins
16%inclusion5 decks32 decks
-3%synergy
Scavenger Grounds
13%inclusion4 decks32 decks
5%synergy
Svyelunite Temple
9.4%inclusion3 decks32 decks
9%synergy
Mutavault
9.4%inclusion3 decks32 decks
8%synergy
Temple of the False God
9.4%inclusion3 decks32 decks
-1%synergy
Archway of Innovation
6.9%inclusion2 decks29 decks
-4%synergy
Hall of Storm Giants
6.3%inclusion2 decks32 decks
4%synergy
Access Tunnel
6.3%inclusion2 decks32 decks
5%synergy
Mana Artifacts
Sol Ring
81%inclusion26 decks32 decks
-4%synergy
Arcane Signet
69%inclusion22 decks32 decks
4%synergy
Thought Vessel
34%inclusion11 decks32 decks
-17%synergy
Heraldic Banner
28%inclusion9 decks32 decks
22%synergy
Patchwork Banner
27%inclusion7 decks26 decks
24%synergy
Sky Diamond
25%inclusion8 decks32 decks
1%synergy
Nyx Lotus
19%inclusion6 decks32 decks
15%synergy
Mind Stone
16%inclusion5 decks32 decks
-21%synergy
Mox Amber
13%inclusion4 decks32 decks
5%synergy
Caged Sun
9.4%inclusion3 decks32 decks
-2%synergy
Throne of Eldraine
9.4%inclusion3 decks32 decks
0%synergy
Decanter of Endless Water
9.4%inclusion3 decks32 decks
-5%synergy
Commander's Sphere
6.3%inclusion2 decks32 decks
-4%synergy
Gauntlet of Power
6.3%inclusion2 decks32 decks
2%synergy
Fellwar Stone
6.3%inclusion2 decks32 decks
-14%synergy
Gilded Lotus
6.3%inclusion2 decks32 decks
-5%synergy
Springleaf Drum
6.3%inclusion2 decks32 decks
3%synergy
Misleading Signpost
6.3%inclusion2 decks32 decks
2%synergy
Aetheric Amplifier
5.0%inclusion1 decks20 decks
4%synergy
Lands
Island
97%inclusion31 decks32 decks
4%synergy
Cavern of Souls
34%inclusion11 decks32 decks
30%synergy
Path of Ancestry
34%inclusion11 decks32 decks
30%synergy
Myriad Landscape
28%inclusion9 decks32 decks
2%synergy
Sink into Stupor
17%inclusion5 decks30 decks
-5%synergy
Sea Gate Restoration
16%inclusion5 decks32 decks
1%synergy
Glasspool Mimic
13%inclusion4 decks32 decks
6%synergy
Command Tower
9.4%inclusion3 decks32 decks
5%synergy
Jwari Disruption
9.4%inclusion3 decks32 decks
5%synergy
Terramorphic Expanse
6.3%inclusion2 decks32 decks
3%synergy
Snow-Covered Island
6.3%inclusion2 decks32 decks
-2%synergy
Demolition Field
6.3%inclusion2 decks32 decks
1%synergy
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