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
100%inclusion2 decks2 decks
98%synergy
Agna Qel'a
11%inclusion1 decks9 decks
4%synergy
High Synergy Cards
Emperor Mihail II
100%inclusion37 decks37 decks
99%synergy
Master of the Pearl Trident
100%inclusion37 decks37 decks
98%synergy
Merrow Reejerey
97%inclusion36 decks37 decks
96%synergy
Lord of Atlantis
95%inclusion35 decks37 decks
93%synergy
Stonybrook Banneret
95%inclusion35 decks37 decks
91%synergy
Deeproot Waters
92%inclusion34 decks37 decks
91%synergy
Kopala, Warden of Waves
92%inclusion34 decks37 decks
91%synergy
Vodalian Hexcatcher
92%inclusion34 decks37 decks
90%synergy
Merfolk Sovereign
92%inclusion34 decks37 decks
90%synergy
Seafloor Oracle
86%inclusion32 decks37 decks
85%synergy
Top Cards
Deeproot Pilgrimage
84%inclusion31 decks37 decks
82%synergy
Tide Shaper
84%inclusion31 decks37 decks
83%synergy
Sapphire Medallion
84%inclusion31 decks37 decks
27%synergy
Lullmage Mentor
78%inclusion29 decks37 decks
77%synergy
Thieving Skydiver
78%inclusion29 decks37 decks
74%synergy
Merfolk Trickster
78%inclusion29 decks37 decks
77%synergy
Merrow Harbinger
76%inclusion28 decks37 decks
75%synergy
Silvergill Adept
76%inclusion28 decks37 decks
75%synergy
Counterspell
76%inclusion28 decks37 decks
9%synergy
Kindred Discovery
73%inclusion27 decks37 decks
66%synergy
Game Changers
Cyclonic Rift
38%inclusion14 decks37 decks
3%synergy
Rhystic Study
35%inclusion13 decks37 decks
2%synergy
Thassa's Oracle
22%inclusion8 decks37 decks
9%synergy
Force of Will
22%inclusion8 decks37 decks
4%synergy
Fierce Guardianship
19%inclusion7 decks37 decks
-4%synergy
Mystical Tutor
16%inclusion6 decks37 decks
-8%synergy
Ancient Tomb
8.1%inclusion3 decks37 decks
-4%synergy
The One Ring
8.1%inclusion3 decks37 decks
-5%synergy
Chrome Mox
8.1%inclusion3 decks37 decks
-1%synergy
Mana Vault
5.4%inclusion2 decks37 decks
-5%synergy
Creatures
Mist Dancer
73%inclusion27 decks37 decks
72%synergy
Harbinger of the Seas
72%inclusion26 decks36 decks
63%synergy
Harbinger of the Tides
70%inclusion26 decks37 decks
69%synergy
Tishana's Tidebinder
62%inclusion23 decks37 decks
58%synergy
Wanderwine Prophets
62%inclusion23 decks37 decks
62%synergy
Thada Adel, Acquisitor
62%inclusion23 decks37 decks
60%synergy
Coralhelm Commander
54%inclusion20 decks37 decks
53%synergy
Deepchannel Mentor
54%inclusion20 decks37 decks
53%synergy
Triton Shorestalker
51%inclusion19 decks37 decks
49%synergy
Mistcaller
51%inclusion19 decks37 decks
50%synergy
Cursecatcher
51%inclusion19 decks37 decks
50%synergy
Master of Waves
49%inclusion18 decks37 decks
45%synergy
Mist-Cloaked Herald
49%inclusion18 decks37 decks
46%synergy
True-Name Nemesis
46%inclusion17 decks37 decks
45%synergy
Seahunter
46%inclusion17 decks37 decks
45%synergy
Tempest Caller
43%inclusion16 decks37 decks
42%synergy
River Sneak
38%inclusion14 decks37 decks
37%synergy
Floodpits Drowner
36%inclusion10 decks28 decks
34%synergy
Empress Galina
35%inclusion13 decks37 decks
34%synergy
Sea Scryer
35%inclusion13 decks37 decks
34%synergy
Rishadan Dockhand
32%inclusion12 decks37 decks
32%synergy
Wake Thrasher
32%inclusion12 decks37 decks
32%synergy
Streambed Aquitects
30%inclusion11 decks37 decks
29%synergy
Mindspring Merfolk
28%inclusion7 decks25 decks
27%synergy
Cosi's Trickster
27%inclusion10 decks37 decks
26%synergy
Tidal Warrior
27%inclusion10 decks37 decks
26%synergy
Glasspool Mimic
27%inclusion10 decks37 decks
21%synergy
Merfolk Looter
24%inclusion9 decks37 decks
22%synergy
Thassa, God of the Sea
24%inclusion9 decks37 decks
21%synergy
Benthic Biomancer
22%inclusion8 decks37 decks
21%synergy
Talrand, Sky Summoner
22%inclusion8 decks37 decks
8%synergy
Enduring Curiosity
21%inclusion6 decks28 decks
15%synergy
Summon: Leviathan
21%inclusion4 decks19 decks
19%synergy
Sigil Tracer
19%inclusion7 decks37 decks
18%synergy
Gray Harbor Merfolk
19%inclusion7 decks37 decks
18%synergy
Kiora, the Rising Tide
19%inclusion5 decks27 decks
15%synergy
Stormtide Leviathan
16%inclusion6 decks37 decks
9%synergy
Roaming Throne
16%inclusion6 decks37 decks
12%synergy
Tideshaper Mystic
14%inclusion5 decks37 decks
13%synergy
Surgespanner
14%inclusion5 decks37 decks
13%synergy
Drowner of Secrets
14%inclusion5 decks37 decks
13%synergy
Fallowsage
14%inclusion5 decks37 decks
13%synergy
Titan of Littjara
14%inclusion5 decks37 decks
12%synergy
Tidebinder Mage
14%inclusion5 decks37 decks
13%synergy
Seasinger
11%inclusion4 decks37 decks
11%synergy
Metallic Mimic
11%inclusion4 decks37 decks
10%synergy
Reef Shaman
11%inclusion4 decks37 decks
11%synergy
Rootwater Thief
11%inclusion4 decks37 decks
11%synergy
Slinn Voda, the Rising Deep
11%inclusion4 decks37 decks
10%synergy
Forensic Researcher
11%inclusion4 decks37 decks
10%synergy
Instants
Negate
57%inclusion21 decks37 decks
19%synergy
High Tide
54%inclusion20 decks37 decks
10%synergy
Rapid Hybridization
46%inclusion17 decks37 decks
11%synergy
Pongify
43%inclusion16 decks37 decks
3%synergy
Aetherize
43%inclusion16 decks37 decks
15%synergy
Reality Shift
38%inclusion14 decks37 decks
10%synergy
Flare of Denial
36%inclusion13 decks36 decks
29%synergy
Brainstorm
35%inclusion13 decks37 decks
-6%synergy
An Offer You Can't Refuse
32%inclusion12 decks37 decks
-4%synergy
Sink into Stupor
31%inclusion11 decks36 decks
9%synergy
Cryptic Command
30%inclusion11 decks37 decks
18%synergy
Swan Song
27%inclusion10 decks37 decks
1%synergy
Thassa's Rebuff
27%inclusion10 decks37 decks
26%synergy
Mana Drain
24%inclusion9 decks37 decks
-3%synergy
Resculpt
24%inclusion9 decks37 decks
5%synergy
Filter Out
24%inclusion9 decks37 decks
20%synergy
Arcane Denial
19%inclusion7 decks37 decks
-17%synergy
Spell Pierce
16%inclusion6 decks37 decks
8%synergy
Foil
14%inclusion5 decks37 decks
8%synergy
Archmage's Charm
14%inclusion5 decks37 decks
-3%synergy
Flusterstorm
14%inclusion5 decks37 decks
4%synergy
Mystic Reflection
11%inclusion4 decks37 decks
9%synergy
Force of Negation
11%inclusion4 decks37 decks
-5%synergy
Snap
11%inclusion4 decks37 decks
-7%synergy
Muddle the Mixture
8.1%inclusion3 decks37 decks
-8%synergy
Frantic Search
8.1%inclusion3 decks37 decks
-22%synergy
Essence Scatter
8.1%inclusion3 decks37 decks
4%synergy
Aetherspouts
8.1%inclusion3 decks37 decks
1%synergy
Opt
8.1%inclusion3 decks37 decks
-17%synergy
Submerge
8.1%inclusion3 decks37 decks
7%synergy
Engulf the Shore
8.1%inclusion3 decks37 decks
0%synergy
Wash Away
8.1%inclusion3 decks37 decks
3%synergy
Mana Leak
8.1%inclusion3 decks37 decks
1%synergy
Boomerang
8.1%inclusion3 decks37 decks
7%synergy
Abjure
8.1%inclusion3 decks37 decks
4%synergy
March of Swirling Mist
8.1%inclusion3 decks37 decks
0%synergy
Consult the Star Charts
5.9%inclusion1 decks17 decks
2%synergy
Strix Serenade
5.6%inclusion2 decks36 decks
-4%synergy
Disdainful Stroke
5.4%inclusion2 decks37 decks
0%synergy
Transcendent Message
5.4%inclusion2 decks37 decks
3%synergy
Chain of Vapor
5.4%inclusion2 decks37 decks
0%synergy
Dive Down
5.4%inclusion2 decks37 decks
2%synergy
Cyber Conversion
5.4%inclusion2 decks37 decks
2%synergy
Stubborn Denial
5.4%inclusion2 decks37 decks
3%synergy
Turnabout
5.4%inclusion2 decks37 decks
2%synergy
Cancel
5.4%inclusion2 decks37 decks
0%synergy
Unsummon
5.4%inclusion2 decks37 decks
1%synergy
Tale's End
5.4%inclusion2 decks37 decks
2%synergy
Jwari Disruption
5.4%inclusion2 decks37 decks
1%synergy
Flow of Knowledge
5.4%inclusion2 decks37 decks
-11%synergy
Sorceries
Distant Melody
46%inclusion17 decks37 decks
41%synergy
Aquitect's Will
46%inclusion17 decks37 decks
41%synergy
Raise the Palisade
41%inclusion15 decks37 decks
38%synergy
Ponder
24%inclusion9 decks37 decks
-5%synergy
Sea Gate Restoration
22%inclusion8 decks37 decks
7%synergy
Windfall
19%inclusion7 decks37 decks
-4%synergy
Inundate
16%inclusion6 decks37 decks
14%synergy
Curse of the Swine
16%inclusion6 decks37 decks
4%synergy
Ravenform
16%inclusion6 decks37 decks
6%synergy
Rite of Replication
16%inclusion6 decks37 decks
10%synergy
Spectral Deluge
14%inclusion5 decks37 decks
2%synergy
River's Rebuke
14%inclusion5 decks37 decks
10%synergy
Preordain
8.1%inclusion3 decks37 decks
-16%synergy
Step Through
8.1%inclusion3 decks37 decks
3%synergy
Echo of Eons
5.4%inclusion2 decks37 decks
3%synergy
Fabricate
5.4%inclusion2 decks37 decks
-16%synergy
Crashing Tide
5.4%inclusion2 decks37 decks
5%synergy
Serum Visions
5.4%inclusion2 decks37 decks
-5%synergy
Time Stretch
5.4%inclusion2 decks37 decks
1%synergy
Retraced Image
5.4%inclusion2 decks37 decks
3%synergy
Time Spiral
5.4%inclusion2 decks37 decks
4%synergy
Utility Artifacts
Bident of Thassa
73%inclusion27 decks37 decks
61%synergy
Kefnet's Monument
41%inclusion15 decks37 decks
34%synergy
Vanquisher's Banner
32%inclusion12 decks37 decks
31%synergy
Quicksilver Fountain
30%inclusion11 decks37 decks
28%synergy
Herald's Horn
30%inclusion11 decks37 decks
28%synergy
Lightning Greaves
27%inclusion10 decks37 decks
1%synergy
Door of Destinies
24%inclusion9 decks37 decks
24%synergy
Swiftfoot Boots
16%inclusion6 decks37 decks
-12%synergy
Banner of Kinship
15%inclusion4 decks27 decks
12%synergy
Wayfarer's Bauble
14%inclusion5 decks37 decks
-5%synergy
Sword of the Animist
14%inclusion5 decks37 decks
8%synergy
The Indomitable
11%inclusion4 decks37 decks
9%synergy
Winter Moon
8.3%inclusion3 decks36 decks
4%synergy
Commander's Plate
8.1%inclusion3 decks37 decks
4%synergy
Sword of Feast and Famine
8.1%inclusion3 decks37 decks
7%synergy
Throne of the God-Pharaoh
8.1%inclusion3 decks37 decks
8%synergy
Thrumming Hivepool
5.9%inclusion1 decks17 decks
6%synergy
Soul-Guide Lantern
5.4%inclusion2 decks37 decks
1%synergy
Robe of the Archmagi
5.4%inclusion2 decks37 decks
4%synergy
Horn of the Mark
5.4%inclusion2 decks37 decks
5%synergy
Sword of Forge and Frontier
5.4%inclusion2 decks37 decks
5%synergy
Empyrial Plate
5.4%inclusion2 decks37 decks
4%synergy
Aether Vial
5.4%inclusion2 decks37 decks
5%synergy
Enchantments
Merrow Commerce
73%inclusion27 decks37 decks
72%synergy
Reflections of Littjara
46%inclusion17 decks37 decks
42%synergy
Spreading Seas
35%inclusion13 decks37 decks
34%synergy
Reconnaissance Mission
27%inclusion10 decks37 decks
20%synergy
Mystic Remora
27%inclusion10 decks37 decks
0%synergy
Coastal Piracy
22%inclusion8 decks37 decks
17%synergy
Imprisoned in the Moon
19%inclusion7 decks37 decks
7%synergy
Wizard Class
16%inclusion6 decks37 decks
-1%synergy
Aquatic Incursion
14%inclusion5 decks37 decks
13%synergy
Intruder Alarm
11%inclusion4 decks37 decks
8%synergy
Propaganda
11%inclusion4 decks37 decks
-19%synergy
Back to Basics
8.1%inclusion3 decks37 decks
0%synergy
Sea's Claim
8.1%inclusion3 decks37 decks
8%synergy
Counterbalance
5.4%inclusion2 decks37 decks
2%synergy
Curiosity
5.4%inclusion2 decks37 decks
3%synergy
Leyline of Anticipation
5.4%inclusion2 decks37 decks
-4%synergy
Opposition
5.4%inclusion2 decks37 decks
4%synergy
Telepathy
5.4%inclusion2 decks37 decks
3%synergy
Utility Lands
Mystic Sanctuary
68%inclusion25 decks37 decks
17%synergy
Reliquary Tower
49%inclusion18 decks37 decks
-8%synergy
Otawara, Soaring City
43%inclusion16 decks37 decks
18%synergy
Nykthos, Shrine to Nyx
41%inclusion15 decks37 decks
24%synergy
Castle Vantress
38%inclusion14 decks37 decks
19%synergy
Three Tree City
30%inclusion9 decks30 decks
27%synergy
Minamo, School at Water's Edge
24%inclusion9 decks37 decks
12%synergy
Mutavault
24%inclusion9 decks37 decks
23%synergy
Lonely Sandbar
24%inclusion9 decks37 decks
10%synergy
Halimar Depths
22%inclusion8 decks37 decks
11%synergy
Riptide Laboratory
22%inclusion8 decks37 decks
11%synergy
Scavenger Grounds
22%inclusion8 decks37 decks
14%synergy
War Room
19%inclusion7 decks37 decks
3%synergy
Rivendell
16%inclusion6 decks37 decks
4%synergy
Svyelunite Temple
14%inclusion5 decks37 decks
13%synergy
Rogue's Passage
14%inclusion5 decks37 decks
-1%synergy
Hall of Storm Giants
11%inclusion4 decks37 decks
8%synergy
Remote Isle
8.1%inclusion3 decks37 decks
3%synergy
Maze of Ith
8.1%inclusion3 decks37 decks
3%synergy
Academy Ruins
8.1%inclusion3 decks37 decks
-10%synergy
Saprazzan Skerry
8.1%inclusion3 decks37 decks
5%synergy
Sunken Palace
5.7%inclusion2 decks35 decks
2%synergy
Coral Atoll
5.4%inclusion2 decks37 decks
2%synergy
Tolaria West
5.4%inclusion2 decks37 decks
0%synergy
Urza's Saga
5.4%inclusion2 decks37 decks
-11%synergy
Emergence Zone
5.4%inclusion2 decks37 decks
1%synergy
Cephalid Coliseum
5.4%inclusion2 decks37 decks
-4%synergy
Strip Mine
5.4%inclusion2 decks37 decks
2%synergy
Mana Artifacts
Sol Ring
73%inclusion27 decks37 decks
-12%synergy
Arcane Signet
65%inclusion24 decks37 decks
0%synergy
Thought Vessel
38%inclusion14 decks37 decks
-14%synergy
Sky Diamond
30%inclusion11 decks37 decks
6%synergy
Patchwork Banner
28%inclusion8 decks29 decks
24%synergy
Fellwar Stone
22%inclusion8 decks37 decks
2%synergy
Heraldic Banner
19%inclusion7 decks37 decks
13%synergy
Lotus Petal
11%inclusion4 decks37 decks
-1%synergy
Jeweled Lotus
8.1%inclusion3 decks37 decks
5%synergy
Throne of Eldraine
8.1%inclusion3 decks37 decks
-1%synergy
Springleaf Drum
8.1%inclusion3 decks37 decks
5%synergy
Mind Stone
8.1%inclusion3 decks37 decks
-28%synergy
Nyx Lotus
8.1%inclusion3 decks37 decks
4%synergy
Commander's Sphere
5.4%inclusion2 decks37 decks
-5%synergy
Mana Crypt
5.4%inclusion2 decks37 decks
2%synergy
Mox Amber
5.4%inclusion2 decks37 decks
-2%synergy
Decanter of Endless Water
5.4%inclusion2 decks37 decks
-9%synergy
Liquimetal Torque
5.4%inclusion2 decks37 decks
-2%synergy
Lands
Island
95%inclusion35 decks37 decks
1%synergy
Cavern of Souls
41%inclusion15 decks37 decks
36%synergy
Path of Ancestry
32%inclusion12 decks37 decks
28%synergy
Sink into Stupor
31%inclusion11 decks36 decks
9%synergy
Glasspool Mimic
27%inclusion10 decks37 decks
21%synergy
Myriad Landscape
24%inclusion9 decks37 decks
-2%synergy
Sea Gate Restoration
22%inclusion8 decks37 decks
7%synergy
Demolition Field
14%inclusion5 decks37 decks
8%synergy
Misty Rainforest
8.1%inclusion3 decks37 decks
0%synergy
Snow-Covered Island
8.1%inclusion3 decks37 decks
0%synergy
Scalding Tarn
8.1%inclusion3 decks37 decks
0%synergy
Abstergo Entertainment
5.7%inclusion2 decks35 decks
5%synergy
Urza's Cave
5.6%inclusion2 decks36 decks
2%synergy
Hydroelectric Specimen
5.6%inclusion2 decks36 decks
-8%synergy
Jwari Disruption
5.4%inclusion2 decks37 decks
1%synergy
Gemstone Caverns
5.4%inclusion2 decks37 decks
-1%synergy
Flooded Strand
5.4%inclusion2 decks37 decks
-3%synergy
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