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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Attuma, Atlantean Warlord
50%inclusion4 decks8 decks
49%synergy
Namor the Sub-Mariner
13%inclusion1 decks8 decks
12%synergy
Agna Qel'a
8.3%inclusion1 decks12 decks
0%synergy
Waterbender Ascension
8.3%inclusion1 decks12 decks
4%synergy
Waterbending Scroll
8.3%inclusion1 decks12 decks
-1%synergy
High Synergy Cards
Master of the Pearl Trident
100%inclusion38 decks38 decks
98%synergy
Emperor Mihail II
97%inclusion37 decks38 decks
96%synergy
Merrow Reejerey
97%inclusion37 decks38 decks
96%synergy
Lord of Atlantis
92%inclusion35 decks38 decks
91%synergy
Vodalian Hexcatcher
92%inclusion35 decks38 decks
91%synergy
Merfolk Sovereign
92%inclusion35 decks38 decks
91%synergy
Stonybrook Banneret
92%inclusion35 decks38 decks
88%synergy
Kopala, Warden of Waves
89%inclusion34 decks38 decks
88%synergy
Tide Shaper
87%inclusion33 decks38 decks
86%synergy
Deeproot Waters
87%inclusion33 decks38 decks
86%synergy
Top Cards
Sapphire Medallion
87%inclusion33 decks38 decks
29%synergy
Deeproot Pilgrimage
84%inclusion32 decks38 decks
83%synergy
Seafloor Oracle
84%inclusion32 decks38 decks
83%synergy
Counterspell
82%inclusion31 decks38 decks
15%synergy
Merfolk Trickster
79%inclusion30 decks38 decks
77%synergy
Thieving Skydiver
76%inclusion29 decks38 decks
72%synergy
Harbinger of the Seas
76%inclusion28 decks37 decks
67%synergy
Merrow Harbinger
74%inclusion28 decks38 decks
73%synergy
Lullmage Mentor
74%inclusion28 decks38 decks
72%synergy
Mist Dancer
74%inclusion28 decks38 decks
73%synergy
Game Changers
Rhystic Study
39%inclusion15 decks38 decks
6%synergy
Cyclonic Rift
39%inclusion15 decks38 decks
5%synergy
Thassa's Oracle
24%inclusion9 decks38 decks
11%synergy
Force of Will
24%inclusion9 decks38 decks
6%synergy
Fierce Guardianship
21%inclusion8 decks38 decks
-2%synergy
Mystical Tutor
16%inclusion6 decks38 decks
-8%synergy
Ancient Tomb
7.9%inclusion3 decks38 decks
-4%synergy
The One Ring
7.9%inclusion3 decks38 decks
-5%synergy
Chrome Mox
7.9%inclusion3 decks38 decks
-2%synergy
Mana Vault
5.3%inclusion2 decks38 decks
-6%synergy
Creatures
Harbinger of the Tides
71%inclusion27 decks38 decks
70%synergy
Silvergill Adept
71%inclusion27 decks38 decks
70%synergy
Tishana's Tidebinder
61%inclusion23 decks38 decks
56%synergy
Wanderwine Prophets
61%inclusion23 decks38 decks
60%synergy
Thada Adel, Acquisitor
61%inclusion23 decks38 decks
59%synergy
Deepchannel Mentor
53%inclusion20 decks38 decks
51%synergy
Coralhelm Commander
50%inclusion19 decks38 decks
49%synergy
Triton Shorestalker
50%inclusion19 decks38 decks
47%synergy
Mist-Cloaked Herald
50%inclusion19 decks38 decks
48%synergy
Mistcaller
50%inclusion19 decks38 decks
49%synergy
Cursecatcher
50%inclusion19 decks38 decks
48%synergy
Master of Waves
47%inclusion18 decks38 decks
44%synergy
Seahunter
47%inclusion18 decks38 decks
47%synergy
True-Name Nemesis
45%inclusion17 decks38 decks
44%synergy
Tempest Caller
42%inclusion16 decks38 decks
41%synergy
River Sneak
39%inclusion15 decks38 decks
39%synergy
Empress Galina
37%inclusion14 decks38 decks
36%synergy
Floodpits Drowner
34%inclusion10 decks29 decks
33%synergy
Streambed Aquitects
34%inclusion13 decks38 decks
34%synergy
Sea Scryer
34%inclusion13 decks38 decks
33%synergy
Wake Thrasher
34%inclusion13 decks38 decks
34%synergy
Rishadan Dockhand
29%inclusion11 decks38 decks
28%synergy
Mindspring Merfolk
27%inclusion7 decks26 decks
26%synergy
Tidal Warrior
26%inclusion10 decks38 decks
26%synergy
Glasspool Mimic
26%inclusion10 decks38 decks
20%synergy
Summon: Leviathan
24%inclusion5 decks21 decks
22%synergy
Merfolk Looter
24%inclusion9 decks38 decks
21%synergy
Thassa, God of the Sea
24%inclusion9 decks38 decks
20%synergy
Talrand, Sky Summoner
24%inclusion9 decks38 decks
10%synergy
Cosi's Trickster
21%inclusion8 decks38 decks
20%synergy
Benthic Biomancer
21%inclusion8 decks38 decks
20%synergy
Gray Harbor Merfolk
21%inclusion8 decks38 decks
21%synergy
Enduring Curiosity
21%inclusion6 decks29 decks
14%synergy
Kiora, the Rising Tide
18%inclusion5 decks28 decks
15%synergy
Stormtide Leviathan
16%inclusion6 decks38 decks
9%synergy
Roaming Throne
16%inclusion6 decks38 decks
11%synergy
Sigil Tracer
16%inclusion6 decks38 decks
15%synergy
Tidebinder Mage
16%inclusion6 decks38 decks
15%synergy
Surgespanner
13%inclusion5 decks38 decks
13%synergy
Reef Shaman
13%inclusion5 decks38 decks
13%synergy
Titan of Littjara
13%inclusion5 decks38 decks
11%synergy
Seasinger
11%inclusion4 decks38 decks
10%synergy
Metallic Mimic
11%inclusion4 decks38 decks
9%synergy
Tideshaper Mystic
11%inclusion4 decks38 decks
10%synergy
Rootwater Thief
11%inclusion4 decks38 decks
10%synergy
Slinn Voda, the Rising Deep
11%inclusion4 decks38 decks
9%synergy
Forensic Researcher
11%inclusion4 decks38 decks
9%synergy
Alandra, Sky Dreamer
11%inclusion4 decks38 decks
4%synergy
Defiler of Dreams
11%inclusion4 decks38 decks
2%synergy
Drowner of Secrets
11%inclusion4 decks38 decks
10%synergy
Instants
Negate
58%inclusion22 decks38 decks
20%synergy
High Tide
55%inclusion21 decks38 decks
11%synergy
Rapid Hybridization
50%inclusion19 decks38 decks
16%synergy
Pongify
45%inclusion17 decks38 decks
4%synergy
Aetherize
45%inclusion17 decks38 decks
16%synergy
Brainstorm
39%inclusion15 decks38 decks
-2%synergy
Reality Shift
37%inclusion14 decks38 decks
9%synergy
Flare of Denial
32%inclusion12 decks37 decks
26%synergy
Sink into Stupor
30%inclusion11 decks37 decks
8%synergy
An Offer You Can't Refuse
29%inclusion11 decks38 decks
-8%synergy
Cryptic Command
29%inclusion11 decks38 decks
17%synergy
Mana Drain
26%inclusion10 decks38 decks
-1%synergy
Resculpt
26%inclusion10 decks38 decks
8%synergy
Swan Song
26%inclusion10 decks38 decks
0%synergy
Thassa's Rebuff
26%inclusion10 decks38 decks
25%synergy
Filter Out
24%inclusion9 decks38 decks
20%synergy
Arcane Denial
21%inclusion8 decks38 decks
-15%synergy
Spell Pierce
16%inclusion6 decks38 decks
7%synergy
Foil
13%inclusion5 decks38 decks
7%synergy
Flusterstorm
13%inclusion5 decks38 decks
3%synergy
Force of Negation
13%inclusion5 decks38 decks
-2%synergy
Mystic Reflection
11%inclusion4 decks38 decks
9%synergy
Archmage's Charm
11%inclusion4 decks38 decks
-6%synergy
Snap
11%inclusion4 decks38 decks
-8%synergy
Muddle the Mixture
7.9%inclusion3 decks38 decks
-8%synergy
Frantic Search
7.9%inclusion3 decks38 decks
-22%synergy
Aetherspouts
7.9%inclusion3 decks38 decks
0%synergy
Opt
7.9%inclusion3 decks38 decks
-17%synergy
Submerge
7.9%inclusion3 decks38 decks
7%synergy
Engulf the Shore
7.9%inclusion3 decks38 decks
0%synergy
Wash Away
7.9%inclusion3 decks38 decks
3%synergy
Mana Leak
7.9%inclusion3 decks38 decks
1%synergy
March of Swirling Mist
7.9%inclusion3 decks38 decks
0%synergy
Pact of Negation
7.9%inclusion3 decks38 decks
-2%synergy
Strix Serenade
5.4%inclusion2 decks37 decks
-4%synergy
Disdainful Stroke
5.3%inclusion2 decks38 decks
0%synergy
Transcendent Message
5.3%inclusion2 decks38 decks
3%synergy
Chain of Vapor
5.3%inclusion2 decks38 decks
0%synergy
Three Steps Ahead
5.3%inclusion2 decks38 decks
-5%synergy
Cyber Conversion
5.3%inclusion2 decks38 decks
2%synergy
Stubborn Denial
5.3%inclusion2 decks38 decks
2%synergy
Essence Scatter
5.3%inclusion2 decks38 decks
2%synergy
Turnabout
5.3%inclusion2 decks38 decks
2%synergy
Cancel
5.3%inclusion2 decks38 decks
0%synergy
Jwari Disruption
5.3%inclusion2 decks38 decks
0%synergy
Flow of Knowledge
5.3%inclusion2 decks38 decks
-11%synergy
Wizard's Retort
5.3%inclusion2 decks38 decks
1%synergy
Rewind
5.3%inclusion2 decks38 decks
-7%synergy
Unsubstantiate
5.3%inclusion2 decks38 decks
3%synergy
Mystic Confluence
5.3%inclusion2 decks38 decks
-4%synergy
Sorceries
Distant Melody
42%inclusion16 decks38 decks
37%synergy
Aquitect's Will
42%inclusion16 decks38 decks
37%synergy
Raise the Palisade
42%inclusion16 decks38 decks
39%synergy
Ponder
26%inclusion10 decks38 decks
-3%synergy
Sea Gate Restoration
21%inclusion8 decks38 decks
6%synergy
Windfall
18%inclusion7 decks38 decks
-4%synergy
Inundate
16%inclusion6 decks38 decks
14%synergy
Curse of the Swine
16%inclusion6 decks38 decks
4%synergy
Ravenform
16%inclusion6 decks38 decks
6%synergy
Spectral Deluge
13%inclusion5 decks38 decks
2%synergy
Rite of Replication
13%inclusion5 decks38 decks
6%synergy
River's Rebuke
11%inclusion4 decks38 decks
7%synergy
Preordain
7.9%inclusion3 decks38 decks
-16%synergy
Step Through
7.9%inclusion3 decks38 decks
2%synergy
Echo of Eons
5.3%inclusion2 decks38 decks
3%synergy
Fabricate
5.3%inclusion2 decks38 decks
-16%synergy
Crashing Tide
5.3%inclusion2 decks38 decks
5%synergy
Serum Visions
5.3%inclusion2 decks38 decks
-5%synergy
Temporal Manipulation
5.3%inclusion2 decks38 decks
1%synergy
Retraced Image
5.3%inclusion2 decks38 decks
2%synergy
Utility Artifacts
Bident of Thassa
74%inclusion28 decks38 decks
62%synergy
Kefnet's Monument
45%inclusion17 decks38 decks
38%synergy
Vanquisher's Banner
29%inclusion11 decks38 decks
28%synergy
Lightning Greaves
29%inclusion11 decks38 decks
3%synergy
Quicksilver Fountain
26%inclusion10 decks38 decks
25%synergy
Herald's Horn
26%inclusion10 decks38 decks
24%synergy
Door of Destinies
24%inclusion9 decks38 decks
23%synergy
Banner of Kinship
18%inclusion5 decks28 decks
15%synergy
Swiftfoot Boots
16%inclusion6 decks38 decks
-12%synergy
Sword of the Animist
16%inclusion6 decks38 decks
10%synergy
Wayfarer's Bauble
13%inclusion5 decks38 decks
-5%synergy
The Indomitable
11%inclusion4 decks38 decks
8%synergy
Winter Moon
8.1%inclusion3 decks37 decks
4%synergy
Commander's Plate
7.9%inclusion3 decks38 decks
4%synergy
Sword of Feast and Famine
7.9%inclusion3 decks38 decks
6%synergy
Soul-Guide Lantern
5.3%inclusion2 decks38 decks
1%synergy
Robe of the Archmagi
5.3%inclusion2 decks38 decks
4%synergy
Coat of Arms
5.3%inclusion2 decks38 decks
4%synergy
Horn of the Mark
5.3%inclusion2 decks38 decks
5%synergy
Sword of Forge and Frontier
5.3%inclusion2 decks38 decks
4%synergy
Empyrial Plate
5.3%inclusion2 decks38 decks
4%synergy
Throne of the God-Pharaoh
5.3%inclusion2 decks38 decks
5%synergy
Aether Vial
5.3%inclusion2 decks38 decks
5%synergy
Thrumming Hivepool
5.3%inclusion1 decks19 decks
5%synergy
Enchantments
Kindred Discovery
71%inclusion27 decks38 decks
64%synergy
Merrow Commerce
71%inclusion27 decks38 decks
70%synergy
Reflections of Littjara
47%inclusion18 decks38 decks
44%synergy
Mystic Remora
32%inclusion12 decks38 decks
4%synergy
Spreading Seas
32%inclusion12 decks38 decks
30%synergy
Reconnaissance Mission
26%inclusion10 decks38 decks
19%synergy
Coastal Piracy
21%inclusion8 decks38 decks
17%synergy
Imprisoned in the Moon
16%inclusion6 decks38 decks
4%synergy
Wizard Class
16%inclusion6 decks38 decks
-1%synergy
Intruder Alarm
13%inclusion5 decks38 decks
10%synergy
Aquatic Incursion
13%inclusion5 decks38 decks
13%synergy
Propaganda
13%inclusion5 decks38 decks
-17%synergy
Back to Basics
7.9%inclusion3 decks38 decks
0%synergy
Leyline of Anticipation
7.9%inclusion3 decks38 decks
-2%synergy
Sea's Claim
7.9%inclusion3 decks38 decks
8%synergy
Counterbalance
5.3%inclusion2 decks38 decks
2%synergy
Teferi's Ageless Insight
5.3%inclusion2 decks38 decks
-12%synergy
Curiosity
5.3%inclusion2 decks38 decks
2%synergy
Telepathy
5.3%inclusion2 decks38 decks
3%synergy
Combat Research
5.3%inclusion2 decks38 decks
3%synergy
Utility Lands
Mystic Sanctuary
71%inclusion27 decks38 decks
20%synergy
Reliquary Tower
50%inclusion19 decks38 decks
-6%synergy
Nykthos, Shrine to Nyx
45%inclusion17 decks38 decks
29%synergy
Otawara, Soaring City
45%inclusion17 decks38 decks
19%synergy
Castle Vantress
37%inclusion14 decks38 decks
18%synergy
Three Tree City
32%inclusion10 decks31 decks
29%synergy
Lonely Sandbar
26%inclusion10 decks38 decks
12%synergy
Minamo, School at Water's Edge
24%inclusion9 decks38 decks
11%synergy
Halimar Depths
24%inclusion9 decks38 decks
14%synergy
Mutavault
24%inclusion9 decks38 decks
23%synergy
Riptide Laboratory
21%inclusion8 decks38 decks
11%synergy
Scavenger Grounds
21%inclusion8 decks38 decks
14%synergy
Rivendell
18%inclusion7 decks38 decks
7%synergy
War Room
18%inclusion7 decks38 decks
2%synergy
Rogue's Passage
13%inclusion5 decks38 decks
-2%synergy
Hall of Storm Giants
11%inclusion4 decks38 decks
8%synergy
Svyelunite Temple
11%inclusion4 decks38 decks
10%synergy
Remote Isle
7.9%inclusion3 decks38 decks
3%synergy
Maze of Ith
7.9%inclusion3 decks38 decks
3%synergy
Academy Ruins
7.9%inclusion3 decks38 decks
-10%synergy
Cephalid Coliseum
7.9%inclusion3 decks38 decks
-1%synergy
Saprazzan Skerry
7.9%inclusion3 decks38 decks
5%synergy
Sunken Palace
5.6%inclusion2 decks36 decks
1%synergy
Coral Atoll
5.3%inclusion2 decks38 decks
2%synergy
Tolaria West
5.3%inclusion2 decks38 decks
0%synergy
Urza's Saga
5.3%inclusion2 decks38 decks
-11%synergy
Emergence Zone
5.3%inclusion2 decks38 decks
1%synergy
Strip Mine
5.3%inclusion2 decks38 decks
2%synergy
Field of Ruin
5.3%inclusion2 decks38 decks
3%synergy
Mana Artifacts
Sol Ring
79%inclusion30 decks38 decks
-6%synergy
Arcane Signet
68%inclusion26 decks38 decks
3%synergy
Thought Vessel
42%inclusion16 decks38 decks
-10%synergy
Patchwork Banner
30%inclusion9 decks30 decks
26%synergy
Sky Diamond
29%inclusion11 decks38 decks
6%synergy
Heraldic Banner
24%inclusion9 decks38 decks
18%synergy
Fellwar Stone
24%inclusion9 decks38 decks
4%synergy
Lotus Petal
11%inclusion4 decks38 decks
-2%synergy
Mind Stone
11%inclusion4 decks38 decks
-26%synergy
Nyx Lotus
11%inclusion4 decks38 decks
6%synergy
Jeweled Lotus
7.9%inclusion3 decks38 decks
5%synergy
Throne of Eldraine
7.9%inclusion3 decks38 decks
-2%synergy
Springleaf Drum
7.9%inclusion3 decks38 decks
5%synergy
Mana Crypt
5.3%inclusion2 decks38 decks
2%synergy
Mox Amber
5.3%inclusion2 decks38 decks
-2%synergy
Decanter of Endless Water
5.3%inclusion2 decks38 decks
-9%synergy
Liquimetal Torque
5.3%inclusion2 decks38 decks
-2%synergy
Prismatic Lens
5.3%inclusion2 decks38 decks
2%synergy
Lands
Island
95%inclusion36 decks38 decks
1%synergy
Cavern of Souls
39%inclusion15 decks38 decks
35%synergy
Path of Ancestry
34%inclusion13 decks38 decks
30%synergy
Sink into Stupor
30%inclusion11 decks37 decks
8%synergy
Glasspool Mimic
26%inclusion10 decks38 decks
20%synergy
Myriad Landscape
24%inclusion9 decks38 decks
-3%synergy
Sea Gate Restoration
21%inclusion8 decks38 decks
6%synergy
Demolition Field
13%inclusion5 decks38 decks
8%synergy
Misty Rainforest
7.9%inclusion3 decks38 decks
0%synergy
Snow-Covered Island
7.9%inclusion3 decks38 decks
0%synergy
Gemstone Caverns
7.9%inclusion3 decks38 decks
2%synergy
Scalding Tarn
7.9%inclusion3 decks38 decks
0%synergy
Abstergo Entertainment
5.6%inclusion2 decks36 decks
5%synergy
Urza's Cave
5.4%inclusion2 decks37 decks
1%synergy
Hydroelectric Specimen
5.4%inclusion2 decks37 decks
-8%synergy
Jwari Disruption
5.3%inclusion2 decks38 decks
0%synergy
Flooded Strand
5.3%inclusion2 decks38 decks
-3%synergy
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