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%inclusion1 decks1 decks
98%synergy
High Synergy Cards
Emperor Mihail II
100%inclusion7 decks7 decks
99%synergy
Tide Shaper
100%inclusion7 decks7 decks
99%synergy
Deeproot Waters
100%inclusion7 decks7 decks
99%synergy
Lord of Atlantis
100%inclusion7 decks7 decks
99%synergy
Deeproot Pilgrimage
100%inclusion7 decks7 decks
98%synergy
Merrow Reejerey
100%inclusion7 decks7 decks
98%synergy
Master of the Pearl Trident
100%inclusion7 decks7 decks
98%synergy
Mist Dancer
86%inclusion6 decks7 decks
85%synergy
Merrow Commerce
86%inclusion6 decks7 decks
85%synergy
Seafloor Oracle
86%inclusion6 decks7 decks
84%synergy
Top Cards
Sapphire Medallion
100%inclusion7 decks7 decks
43%synergy
Kindred Discovery
86%inclusion6 decks7 decks
79%synergy
Kopala, Warden of Waves
86%inclusion6 decks7 decks
84%synergy
Stonybrook Banneret
86%inclusion6 decks7 decks
82%synergy
Merfolk Sovereign
86%inclusion6 decks7 decks
84%synergy
Vodalian Hexcatcher
86%inclusion6 decks7 decks
84%synergy
Reflections of Littjara
86%inclusion6 decks7 decks
82%synergy
Merfolk Trickster
86%inclusion6 decks7 decks
84%synergy
Merrow Harbinger
71%inclusion5 decks7 decks
70%synergy
Reality Shift
71%inclusion5 decks7 decks
44%synergy
Game Changers
Rhystic Study
14%inclusion1 decks7 decks
-19%synergy
Fierce Guardianship
14%inclusion1 decks7 decks
-9%synergy
Cyclonic Rift
14%inclusion1 decks7 decks
-20%synergy
Mystical Tutor
14%inclusion1 decks7 decks
-10%synergy
Creatures
Lullmage Mentor
71%inclusion5 decks7 decks
70%synergy
Harbinger of the Tides
71%inclusion5 decks7 decks
70%synergy
Mindspring Merfolk
67%inclusion4 decks6 decks
66%synergy
Floodpits Drowner
67%inclusion4 decks6 decks
65%synergy
True-Name Nemesis
57%inclusion4 decks7 decks
56%synergy
Tishana's Tidebinder
57%inclusion4 decks7 decks
53%synergy
Seahunter
57%inclusion4 decks7 decks
57%synergy
River Sneak
57%inclusion4 decks7 decks
56%synergy
Triton Shorestalker
57%inclusion4 decks7 decks
55%synergy
Mist-Cloaked Herald
57%inclusion4 decks7 decks
55%synergy
Thada Adel, Acquisitor
57%inclusion4 decks7 decks
55%synergy
Talrand, Sky Summoner
57%inclusion4 decks7 decks
43%synergy
Wake Thrasher
57%inclusion4 decks7 decks
57%synergy
Thieving Skydiver
57%inclusion4 decks7 decks
53%synergy
Kiora, the Rising Tide
50%inclusion3 decks6 decks
47%synergy
Summon: Leviathan
50%inclusion2 decks4 decks
48%synergy
Master of Waves
43%inclusion3 decks7 decks
39%synergy
Coralhelm Commander
43%inclusion3 decks7 decks
42%synergy
Cosi's Trickster
43%inclusion3 decks7 decks
42%synergy
Deepchannel Mentor
43%inclusion3 decks7 decks
42%synergy
Streambed Aquitects
43%inclusion3 decks7 decks
42%synergy
Mistcaller
43%inclusion3 decks7 decks
42%synergy
Harbinger of the Seas
43%inclusion3 decks7 decks
34%synergy
Tidal Warrior
43%inclusion3 decks7 decks
42%synergy
Wanderwine Prophets
43%inclusion3 decks7 decks
42%synergy
Cursecatcher
43%inclusion3 decks7 decks
41%synergy
Silvergill Adept
43%inclusion3 decks7 decks
42%synergy
Metallic Mimic
29%inclusion2 decks7 decks
27%synergy
Thassa, God of the Sea
29%inclusion2 decks7 decks
25%synergy
Slinn Voda, the Rising Deep
29%inclusion2 decks7 decks
27%synergy
Drowner of Secrets
29%inclusion2 decks7 decks
28%synergy
Tempest Caller
29%inclusion2 decks7 decks
28%synergy
Empress Galina
29%inclusion2 decks7 decks
28%synergy
Sea Scryer
29%inclusion2 decks7 decks
28%synergy
Eluge, the Shoreless Sea
17%inclusion1 decks6 decks
8%synergy
Stormtide Leviathan
14%inclusion1 decks7 decks
7%synergy
Seasinger
14%inclusion1 decks7 decks
14%synergy
Thassa, Deep-Dwelling
14%inclusion1 decks7 decks
10%synergy
Razorfin Abolisher
14%inclusion1 decks7 decks
14%synergy
Rishadan Dockhand
14%inclusion1 decks7 decks
14%synergy
Salvager of Secrets
14%inclusion1 decks7 decks
14%synergy
Tideshaper Mystic
14%inclusion1 decks7 decks
14%synergy
Rootwater Diver
14%inclusion1 decks7 decks
14%synergy
Merfolk Wayfinder
14%inclusion1 decks7 decks
14%synergy
Sigil Tracer
14%inclusion1 decks7 decks
13%synergy
Adaptive Automaton
14%inclusion1 decks7 decks
13%synergy
Merfolk Mesmerist
14%inclusion1 decks7 decks
14%synergy
Dakra Mystic
14%inclusion1 decks7 decks
14%synergy
The Flood of Mars
14%inclusion1 decks7 decks
11%synergy
Rootwater Thief
14%inclusion1 decks7 decks
14%synergy
Instants
Aetherize
71%inclusion5 decks7 decks
43%synergy
High Tide
71%inclusion5 decks7 decks
27%synergy
Negate
57%inclusion4 decks7 decks
19%synergy
Counterspell
57%inclusion4 decks7 decks
-9%synergy
Rapid Hybridization
43%inclusion3 decks7 decks
8%synergy
An Offer You Can't Refuse
43%inclusion3 decks7 decks
6%synergy
Brainstorm
43%inclusion3 decks7 decks
2%synergy
Flare of Denial
43%inclusion3 decks7 decks
36%synergy
Mystic Reflection
43%inclusion3 decks7 decks
41%synergy
Filter Out
43%inclusion3 decks7 decks
39%synergy
Pongify
29%inclusion2 decks7 decks
-12%synergy
Resculpt
29%inclusion2 decks7 decks
10%synergy
Arcane Denial
29%inclusion2 decks7 decks
-7%synergy
Thassa's Rebuff
29%inclusion2 decks7 decks
27%synergy
Sink into Stupor
29%inclusion2 decks7 decks
7%synergy
Refute
17%inclusion1 decks6 decks
11%synergy
Frantic Search
14%inclusion1 decks7 decks
-16%synergy
Domineering Will
14%inclusion1 decks7 decks
13%synergy
Essence Scatter
14%inclusion1 decks7 decks
11%synergy
Aetherspouts
14%inclusion1 decks7 decks
7%synergy
Opt
14%inclusion1 decks7 decks
-11%synergy
Turnabout
14%inclusion1 decks7 decks
11%synergy
Mana Drain
14%inclusion1 decks7 decks
-13%synergy
Cancel
14%inclusion1 decks7 decks
9%synergy
Swan Song
14%inclusion1 decks7 decks
-12%synergy
Tale's End
14%inclusion1 decks7 decks
11%synergy
Reins of Power
14%inclusion1 decks7 decks
12%synergy
Submerge
14%inclusion1 decks7 decks
13%synergy
Cryptic Command
14%inclusion1 decks7 decks
3%synergy
Snap
14%inclusion1 decks7 decks
-4%synergy
Flow of Knowledge
14%inclusion1 decks7 decks
-2%synergy
Boomerang
14%inclusion1 decks7 decks
13%synergy
Sorceries
Aquitect's Will
71%inclusion5 decks7 decks
66%synergy
Distant Melody
43%inclusion3 decks7 decks
38%synergy
Raise the Palisade
43%inclusion3 decks7 decks
40%synergy
Ponder
29%inclusion2 decks7 decks
-1%synergy
Inundate
14%inclusion1 decks7 decks
12%synergy
Windfall
14%inclusion1 decks7 decks
-9%synergy
Sea Gate Restoration
14%inclusion1 decks7 decks
0%synergy
Crashing Tide
14%inclusion1 decks7 decks
14%synergy
Expropriate
14%inclusion1 decks7 decks
10%synergy
Retraced Image
14%inclusion1 decks7 decks
11%synergy
Preordain
14%inclusion1 decks7 decks
-10%synergy
Spectral Deluge
14%inclusion1 decks7 decks
3%synergy
Maddening Cacophony
14%inclusion1 decks7 decks
7%synergy
Rite of Replication
14%inclusion1 decks7 decks
8%synergy
Utility Artifacts
Kefnet's Monument
71%inclusion5 decks7 decks
65%synergy
Herald's Horn
71%inclusion5 decks7 decks
69%synergy
Bident of Thassa
71%inclusion5 decks7 decks
60%synergy
Door of Destinies
57%inclusion4 decks7 decks
56%synergy
Wayfarer's Bauble
43%inclusion3 decks7 decks
25%synergy
Vanquisher's Banner
43%inclusion3 decks7 decks
42%synergy
Banner of Kinship
33%inclusion2 decks6 decks
31%synergy
Swiftfoot Boots
29%inclusion2 decks7 decks
0%synergy
Quicksilver Fountain
14%inclusion1 decks7 decks
13%synergy
Icon of Ancestry
14%inclusion1 decks7 decks
14%synergy
Bitterthorn, Nissa's Animus
14%inclusion1 decks7 decks
13%synergy
Coat of Arms
14%inclusion1 decks7 decks
13%synergy
Pyre of Heroes
14%inclusion1 decks7 decks
14%synergy
Hall of Triumph
14%inclusion1 decks7 decks
14%synergy
Stoneforge Masterwork
14%inclusion1 decks7 decks
14%synergy
Horn of the Mark
14%inclusion1 decks7 decks
14%synergy
Azor's Gateway
14%inclusion1 decks7 decks
14%synergy
Lightning Greaves
14%inclusion1 decks7 decks
-12%synergy
Strionic Resonator
14%inclusion1 decks7 decks
12%synergy
Dolmen Gate
14%inclusion1 decks7 decks
14%synergy
Empyrial Plate
14%inclusion1 decks7 decks
13%synergy
Enchantments
Aquatic Incursion
43%inclusion3 decks7 decks
43%synergy
Propaganda
43%inclusion3 decks7 decks
13%synergy
Intruder Alarm
29%inclusion2 decks7 decks
25%synergy
Spreading Seas
29%inclusion2 decks7 decks
27%synergy
Reconnaissance Mission
14%inclusion1 decks7 decks
7%synergy
Wizard Class
14%inclusion1 decks7 decks
-2%synergy
Coastal Piracy
14%inclusion1 decks7 decks
10%synergy
Mystic Remora
14%inclusion1 decks7 decks
-13%synergy
Insight
14%inclusion1 decks7 decks
13%synergy
Copy Land
14%inclusion1 decks7 decks
13%synergy
Control Magic
14%inclusion1 decks7 decks
12%synergy
Telepathy
14%inclusion1 decks7 decks
12%synergy
Utility Lands
Reliquary Tower
71%inclusion5 decks7 decks
15%synergy
Three Tree City
50%inclusion3 decks6 decks
47%synergy
Mystic Sanctuary
43%inclusion3 decks7 decks
-8%synergy
Castle Vantress
43%inclusion3 decks7 decks
24%synergy
Halimar Depths
29%inclusion2 decks7 decks
18%synergy
Lonely Sandbar
29%inclusion2 decks7 decks
14%synergy
Nykthos, Shrine to Nyx
29%inclusion2 decks7 decks
12%synergy
Otawara, Soaring City
29%inclusion2 decks7 decks
3%synergy
Minamo, School at Water's Edge
14%inclusion1 decks7 decks
2%synergy
Mutavault
14%inclusion1 decks7 decks
13%synergy
War Room
14%inclusion1 decks7 decks
-2%synergy
Strip Mine
14%inclusion1 decks7 decks
11%synergy
Saprazzan Skerry
14%inclusion1 decks7 decks
11%synergy
Rogue's Passage
14%inclusion1 decks7 decks
-1%synergy
Mana Artifacts
Sol Ring
71%inclusion5 decks7 decks
-14%synergy
Arcane Signet
57%inclusion4 decks7 decks
-8%synergy
Thought Vessel
57%inclusion4 decks7 decks
5%synergy
Patchwork Banner
50%inclusion3 decks6 decks
47%synergy
Sky Diamond
43%inclusion3 decks7 decks
19%synergy
Heraldic Banner
29%inclusion2 decks7 decks
23%synergy
Fellwar Stone
29%inclusion2 decks7 decks
9%synergy
Aetheric Amplifier
17%inclusion1 decks6 decks
16%synergy
Mind Stone
14%inclusion1 decks7 decks
-22%synergy
Lands
Island
100%inclusion7 decks7 decks
7%synergy
Myriad Landscape
29%inclusion2 decks7 decks
2%synergy
Path of Ancestry
29%inclusion2 decks7 decks
25%synergy
Sink into Stupor
29%inclusion2 decks7 decks
7%synergy
Command Tower
14%inclusion1 decks7 decks
10%synergy
Heap Gate
14%inclusion1 decks7 decks
14%synergy
Gond Gate
14%inclusion1 decks7 decks
14%synergy
Sea Gate Restoration
14%inclusion1 decks7 decks
0%synergy
Plaza of Harmony
14%inclusion1 decks7 decks
14%synergy
Cavern of Souls
14%inclusion1 decks7 decks
10%synergy
Evolving Wilds
14%inclusion1 decks7 decks
10%synergy
Abstergo Entertainment
14%inclusion1 decks7 decks
13%synergy
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