Svyelun of Sea and Sky (Commander) - Core 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
99%synergy
High Synergy Cards
Tide Shaper
100%inclusion8 decks8 decks
99%synergy
Emperor Mihail II
100%inclusion8 decks8 decks
99%synergy
Deeproot Waters
100%inclusion8 decks8 decks
99%synergy
Lord of Atlantis
100%inclusion8 decks8 decks
99%synergy
Deeproot Pilgrimage
100%inclusion8 decks8 decks
98%synergy
Merrow Reejerey
100%inclusion8 decks8 decks
98%synergy
Master of the Pearl Trident
100%inclusion8 decks8 decks
98%synergy
Mist Dancer
88%inclusion7 decks8 decks
87%synergy
Merrow Commerce
88%inclusion7 decks8 decks
86%synergy
Seafloor Oracle
88%inclusion7 decks8 decks
86%synergy
Top Cards
Sapphire Medallion
100%inclusion8 decks8 decks
42%synergy
Kindred Discovery
88%inclusion7 decks8 decks
81%synergy
Kopala, Warden of Waves
88%inclusion7 decks8 decks
86%synergy
Stonybrook Banneret
88%inclusion7 decks8 decks
84%synergy
Merfolk Sovereign
88%inclusion7 decks8 decks
86%synergy
Vodalian Hexcatcher
88%inclusion7 decks8 decks
86%synergy
Reflections of Littjara
88%inclusion7 decks8 decks
84%synergy
Merfolk Trickster
88%inclusion7 decks8 decks
86%synergy
Merrow Harbinger
75%inclusion6 decks8 decks
74%synergy
Aetherize
75%inclusion6 decks8 decks
46%synergy
Game Changers
Rhystic Study
13%inclusion1 decks8 decks
-21%synergy
Fierce Guardianship
13%inclusion1 decks8 decks
-11%synergy
Cyclonic Rift
13%inclusion1 decks8 decks
-22%synergy
Mystical Tutor
13%inclusion1 decks8 decks
-11%synergy
Creatures
Harbinger of the Tides
75%inclusion6 decks8 decks
74%synergy
Seahunter
63%inclusion5 decks8 decks
62%synergy
River Sneak
63%inclusion5 decks8 decks
62%synergy
Lullmage Mentor
63%inclusion5 decks8 decks
61%synergy
Wake Thrasher
63%inclusion5 decks8 decks
62%synergy
Summon: Leviathan
60%inclusion3 decks5 decks
58%synergy
Mindspring Merfolk
57%inclusion4 decks7 decks
56%synergy
Floodpits Drowner
57%inclusion4 decks7 decks
56%synergy
Coralhelm Commander
50%inclusion4 decks8 decks
49%synergy
True-Name Nemesis
50%inclusion4 decks8 decks
49%synergy
Tishana's Tidebinder
50%inclusion4 decks8 decks
45%synergy
Deepchannel Mentor
50%inclusion4 decks8 decks
49%synergy
Streambed Aquitects
50%inclusion4 decks8 decks
49%synergy
Triton Shorestalker
50%inclusion4 decks8 decks
47%synergy
Mist-Cloaked Herald
50%inclusion4 decks8 decks
48%synergy
Tidal Warrior
50%inclusion4 decks8 decks
49%synergy
Thada Adel, Acquisitor
50%inclusion4 decks8 decks
48%synergy
Talrand, Sky Summoner
50%inclusion4 decks8 decks
36%synergy
Thieving Skydiver
50%inclusion4 decks8 decks
46%synergy
Kiora, the Rising Tide
43%inclusion3 decks7 decks
40%synergy
Master of Waves
38%inclusion3 decks8 decks
34%synergy
Cosi's Trickster
38%inclusion3 decks8 decks
37%synergy
Thassa, God of the Sea
38%inclusion3 decks8 decks
34%synergy
Mistcaller
38%inclusion3 decks8 decks
37%synergy
Harbinger of the Seas
38%inclusion3 decks8 decks
29%synergy
Wanderwine Prophets
38%inclusion3 decks8 decks
37%synergy
Cursecatcher
38%inclusion3 decks8 decks
36%synergy
Tempest Caller
38%inclusion3 decks8 decks
37%synergy
Silvergill Adept
38%inclusion3 decks8 decks
37%synergy
Stormtide Leviathan
25%inclusion2 decks8 decks
18%synergy
Metallic Mimic
25%inclusion2 decks8 decks
24%synergy
Slinn Voda, the Rising Deep
25%inclusion2 decks8 decks
24%synergy
Drowner of Secrets
25%inclusion2 decks8 decks
25%synergy
Tidal Courier
25%inclusion2 decks8 decks
25%synergy
Empress Galina
25%inclusion2 decks8 decks
24%synergy
Gray Harbor Merfolk
25%inclusion2 decks8 decks
25%synergy
Sea Scryer
25%inclusion2 decks8 decks
24%synergy
Eluge, the Shoreless Sea
14%inclusion1 decks7 decks
6%synergy
Sea-Dasher Octopus
13%inclusion1 decks8 decks
12%synergy
Seasinger
13%inclusion1 decks8 decks
12%synergy
Thassa, Deep-Dwelling
13%inclusion1 decks8 decks
8%synergy
Razorfin Abolisher
13%inclusion1 decks8 decks
12%synergy
Rishadan Dockhand
13%inclusion1 decks8 decks
12%synergy
Salvager of Secrets
13%inclusion1 decks8 decks
12%synergy
Tideshaper Mystic
13%inclusion1 decks8 decks
12%synergy
Rootwater Diver
13%inclusion1 decks8 decks
12%synergy
Merfolk Wayfinder
13%inclusion1 decks8 decks
12%synergy
Sigil Tracer
13%inclusion1 decks8 decks
11%synergy
Adaptive Automaton
13%inclusion1 decks8 decks
11%synergy
Merfolk Mesmerist
13%inclusion1 decks8 decks
12%synergy
Instants
High Tide
75%inclusion6 decks8 decks
31%synergy
Reality Shift
63%inclusion5 decks8 decks
35%synergy
Counterspell
63%inclusion5 decks8 decks
-4%synergy
Rapid Hybridization
50%inclusion4 decks8 decks
16%synergy
Negate
50%inclusion4 decks8 decks
12%synergy
Brainstorm
50%inclusion4 decks8 decks
9%synergy
Pongify
38%inclusion3 decks8 decks
-3%synergy
An Offer You Can't Refuse
38%inclusion3 decks8 decks
1%synergy
Flare of Denial
38%inclusion3 decks8 decks
31%synergy
Mystic Reflection
38%inclusion3 decks8 decks
36%synergy
Filter Out
38%inclusion3 decks8 decks
33%synergy
Arcane Denial
38%inclusion3 decks8 decks
1%synergy
Resculpt
25%inclusion2 decks8 decks
6%synergy
Thassa's Rebuff
25%inclusion2 decks8 decks
24%synergy
Sink into Stupor
25%inclusion2 decks8 decks
3%synergy
Refute
14%inclusion1 decks7 decks
9%synergy
Frantic Search
13%inclusion1 decks8 decks
-18%synergy
Domineering Will
13%inclusion1 decks8 decks
12%synergy
Essence Scatter
13%inclusion1 decks8 decks
9%synergy
Aetherspouts
13%inclusion1 decks8 decks
5%synergy
Opt
13%inclusion1 decks8 decks
-13%synergy
Turnabout
13%inclusion1 decks8 decks
9%synergy
Mana Drain
13%inclusion1 decks8 decks
-14%synergy
Cancel
13%inclusion1 decks8 decks
7%synergy
Swan Song
13%inclusion1 decks8 decks
-14%synergy
Tale's End
13%inclusion1 decks8 decks
9%synergy
Reins of Power
13%inclusion1 decks8 decks
10%synergy
Submerge
13%inclusion1 decks8 decks
11%synergy
Cryptic Command
13%inclusion1 decks8 decks
1%synergy
Snap
13%inclusion1 decks8 decks
-6%synergy
Flow of Knowledge
13%inclusion1 decks8 decks
-4%synergy
Narset's Reversal
13%inclusion1 decks8 decks
0%synergy
Boomerang
13%inclusion1 decks8 decks
11%synergy
Sorceries
Aquitect's Will
75%inclusion6 decks8 decks
70%synergy
Distant Melody
50%inclusion4 decks8 decks
45%synergy
Raise the Palisade
50%inclusion4 decks8 decks
47%synergy
Ponder
38%inclusion3 decks8 decks
8%synergy
Inundate
13%inclusion1 decks8 decks
11%synergy
Windfall
13%inclusion1 decks8 decks
-10%synergy
Sea Gate Restoration
13%inclusion1 decks8 decks
-2%synergy
Crashing Tide
13%inclusion1 decks8 decks
12%synergy
Expropriate
13%inclusion1 decks8 decks
9%synergy
Retraced Image
13%inclusion1 decks8 decks
10%synergy
Preordain
13%inclusion1 decks8 decks
-12%synergy
Spectral Deluge
13%inclusion1 decks8 decks
2%synergy
Flow of Ideas
13%inclusion1 decks8 decks
8%synergy
Maddening Cacophony
13%inclusion1 decks8 decks
5%synergy
Rite of Replication
13%inclusion1 decks8 decks
6%synergy
Utility Artifacts
Kefnet's Monument
75%inclusion6 decks8 decks
69%synergy
Bident of Thassa
75%inclusion6 decks8 decks
63%synergy
Herald's Horn
63%inclusion5 decks8 decks
61%synergy
Door of Destinies
50%inclusion4 decks8 decks
49%synergy
Banner of Kinship
43%inclusion3 decks7 decks
40%synergy
Wayfarer's Bauble
38%inclusion3 decks8 decks
19%synergy
Vanquisher's Banner
38%inclusion3 decks8 decks
36%synergy
Swiftfoot Boots
25%inclusion2 decks8 decks
-3%synergy
Quicksilver Fountain
13%inclusion1 decks8 decks
11%synergy
Icon of Ancestry
13%inclusion1 decks8 decks
12%synergy
Bitterthorn, Nissa's Animus
13%inclusion1 decks8 decks
11%synergy
Coat of Arms
13%inclusion1 decks8 decks
11%synergy
Lavaspur Boots
13%inclusion1 decks8 decks
11%synergy
Pyre of Heroes
13%inclusion1 decks8 decks
12%synergy
Hall of Triumph
13%inclusion1 decks8 decks
12%synergy
Stoneforge Masterwork
13%inclusion1 decks8 decks
12%synergy
Horn of the Mark
13%inclusion1 decks8 decks
12%synergy
Azor's Gateway
13%inclusion1 decks8 decks
12%synergy
Lightning Greaves
13%inclusion1 decks8 decks
-14%synergy
Strionic Resonator
13%inclusion1 decks8 decks
10%synergy
Dolmen Gate
13%inclusion1 decks8 decks
12%synergy
Empyrial Plate
13%inclusion1 decks8 decks
11%synergy
Enchantments
Propaganda
50%inclusion4 decks8 decks
20%synergy
Aquatic Incursion
38%inclusion3 decks8 decks
37%synergy
Intruder Alarm
25%inclusion2 decks8 decks
22%synergy
Spreading Seas
25%inclusion2 decks8 decks
24%synergy
Reconnaissance Mission
13%inclusion1 decks8 decks
6%synergy
Aqueous Form
13%inclusion1 decks8 decks
7%synergy
Wizard Class
13%inclusion1 decks8 decks
-4%synergy
Coastal Piracy
13%inclusion1 decks8 decks
8%synergy
Mystic Remora
13%inclusion1 decks8 decks
-15%synergy
Leyline of Anticipation
13%inclusion1 decks8 decks
3%synergy
Insight
13%inclusion1 decks8 decks
12%synergy
Copy Land
13%inclusion1 decks8 decks
11%synergy
Control Magic
13%inclusion1 decks8 decks
11%synergy
Telepathy
13%inclusion1 decks8 decks
10%synergy
Combat Research
13%inclusion1 decks8 decks
10%synergy
Utility Lands
Reliquary Tower
63%inclusion5 decks8 decks
6%synergy
Three Tree City
57%inclusion4 decks7 decks
54%synergy
Mystic Sanctuary
50%inclusion4 decks8 decks
-1%synergy
Halimar Depths
38%inclusion3 decks8 decks
27%synergy
Nykthos, Shrine to Nyx
38%inclusion3 decks8 decks
21%synergy
Castle Vantress
38%inclusion3 decks8 decks
19%synergy
Otawara, Soaring City
38%inclusion3 decks8 decks
12%synergy
Lonely Sandbar
25%inclusion2 decks8 decks
11%synergy
Rogue's Passage
25%inclusion2 decks8 decks
10%synergy
Minamo, School at Water's Edge
13%inclusion1 decks8 decks
0%synergy
Rivendell
13%inclusion1 decks8 decks
1%synergy
Mutavault
13%inclusion1 decks8 decks
12%synergy
War Room
13%inclusion1 decks8 decks
-4%synergy
Strip Mine
13%inclusion1 decks8 decks
10%synergy
Saprazzan Skerry
13%inclusion1 decks8 decks
9%synergy
Mana Artifacts
Sol Ring
75%inclusion6 decks8 decks
-10%synergy
Arcane Signet
63%inclusion5 decks8 decks
-3%synergy
Thought Vessel
63%inclusion5 decks8 decks
11%synergy
Patchwork Banner
57%inclusion4 decks7 decks
54%synergy
Sky Diamond
38%inclusion3 decks8 decks
14%synergy
Heraldic Banner
38%inclusion3 decks8 decks
32%synergy
Fellwar Stone
25%inclusion2 decks8 decks
5%synergy
Aetheric Amplifier
14%inclusion1 decks7 decks
14%synergy
Mind Stone
13%inclusion1 decks8 decks
-24%synergy
Lands
Island
100%inclusion8 decks8 decks
7%synergy
Path of Ancestry
38%inclusion3 decks8 decks
34%synergy
Myriad Landscape
25%inclusion2 decks8 decks
-1%synergy
Sink into Stupor
25%inclusion2 decks8 decks
3%synergy
Command Tower
13%inclusion1 decks8 decks
8%synergy
Heap Gate
13%inclusion1 decks8 decks
12%synergy
Gond Gate
13%inclusion1 decks8 decks
12%synergy
Sea Gate Restoration
13%inclusion1 decks8 decks
-2%synergy
Plaza of Harmony
13%inclusion1 decks8 decks
12%synergy
Cavern of Souls
13%inclusion1 decks8 decks
8%synergy
Evolving Wilds
13%inclusion1 decks8 decks
8%synergy
Abstergo Entertainment
13%inclusion1 decks8 decks
12%synergy
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