Svyelun of Sea and Sky (Commander) - Upgraded Merfolk

Svyelun of Sea and Sky
Rank #1,129
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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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Merfolk Sovereign
100%inclusion5 decks5 decks
98%synergy
Master of the Pearl Trident
100%inclusion5 decks5 decks
98%synergy
Wanderwine Prophets
80%inclusion4 decks5 decks
79%synergy
Lord of Atlantis
80%inclusion4 decks5 decks
79%synergy
Kopala, Warden of Waves
80%inclusion4 decks5 decks
79%synergy
Merrow Reejerey
80%inclusion4 decks5 decks
78%synergy
Stonybrook Banneret
80%inclusion4 decks5 decks
76%synergy
Sapphire Medallion
100%inclusion5 decks5 decks
43%synergy
Game Changers
Thassa's Oracle
20%inclusion1 decks5 decks
7%synergy
Creatures
Merrow Harbinger
60%inclusion3 decks5 decks
59%synergy
Vodalian Hexcatcher
60%inclusion3 decks5 decks
59%synergy
Sigil Tracer
60%inclusion3 decks5 decks
59%synergy
Deepchannel Mentor
60%inclusion3 decks5 decks
59%synergy
Merfolk Looter
60%inclusion3 decks5 decks
58%synergy
Thassa, God of the Sea
60%inclusion3 decks5 decks
56%synergy
Emperor Mihail II
60%inclusion3 decks5 decks
59%synergy
Lullmage Mentor
60%inclusion3 decks5 decks
58%synergy
Harbinger of the Tides
60%inclusion3 decks5 decks
59%synergy
Tempest Caller
60%inclusion3 decks5 decks
59%synergy
Mist Dancer
60%inclusion3 decks5 decks
59%synergy
Tide Shaper
60%inclusion3 decks5 decks
59%synergy
Sea Scryer
60%inclusion3 decks5 decks
59%synergy
Merfolk Trickster
60%inclusion3 decks5 decks
58%synergy
Tidebinder Mage
60%inclusion3 decks5 decks
60%synergy
Seafloor Oracle
60%inclusion3 decks5 decks
59%synergy
Master of Waves
40%inclusion2 decks5 decks
36%synergy
Coralhelm Commander
40%inclusion2 decks5 decks
39%synergy
Whirlpool Rider
40%inclusion2 decks5 decks
40%synergy
Cosi's Trickster
40%inclusion2 decks5 decks
39%synergy
Kiora, the Rising Tide
40%inclusion2 decks5 decks
37%synergy
Streambed Aquitects
40%inclusion2 decks5 decks
39%synergy
Scroll Thief
40%inclusion2 decks5 decks
39%synergy
Triton Shorestalker
40%inclusion2 decks5 decks
38%synergy
Tidal Warrior
40%inclusion2 decks5 decks
39%synergy
Defiler of Dreams
40%inclusion2 decks5 decks
31%synergy
Thada Adel, Acquisitor
40%inclusion2 decks5 decks
38%synergy
Enclave Cryptologist
40%inclusion2 decks5 decks
39%synergy
Silvergill Adept
40%inclusion2 decks5 decks
39%synergy
Stonybrook Angler
40%inclusion2 decks5 decks
40%synergy
Riverwise Augur
40%inclusion2 decks5 decks
40%synergy
Library Larcenist
40%inclusion2 decks5 decks
39%synergy
Wake Thrasher
40%inclusion2 decks5 decks
39%synergy
Thieving Skydiver
40%inclusion2 decks5 decks
36%synergy
Azami, Lady of Scrolls
20%inclusion1 decks5 decks
16%synergy
True-Name Nemesis
20%inclusion1 decks5 decks
19%synergy
Stormtide Leviathan
20%inclusion1 decks5 decks
13%synergy
Tandem Lookout
20%inclusion1 decks5 decks
19%synergy
Vodalian Arcanist
20%inclusion1 decks5 decks
20%synergy
Rootwater Matriarch
20%inclusion1 decks5 decks
20%synergy
Metallic Mimic
20%inclusion1 decks5 decks
19%synergy
Thassa, Deep-Dwelling
20%inclusion1 decks5 decks
16%synergy
Mulldrifter
20%inclusion1 decks5 decks
13%synergy
Tishana's Tidebinder
20%inclusion1 decks5 decks
15%synergy
Sentinel of the Pearl Trident
20%inclusion1 decks5 decks
20%synergy
Rishadan Dockhand
20%inclusion1 decks5 decks
19%synergy
Tideshaper Mystic
20%inclusion1 decks5 decks
20%synergy
Surgespanner
20%inclusion1 decks5 decks
20%synergy
Floodpits Drowner
20%inclusion1 decks5 decks
19%synergy
Merfolk Wayfinder
20%inclusion1 decks5 decks
20%synergy
Instants
An Offer You Can't Refuse
60%inclusion3 decks5 decks
24%synergy
Engulf the Shore
60%inclusion3 decks5 decks
51%synergy
Counterspell
60%inclusion3 decks5 decks
-7%synergy
Negate
40%inclusion2 decks5 decks
2%synergy
Resculpt
40%inclusion2 decks5 decks
21%synergy
Swan Song
40%inclusion2 decks5 decks
14%synergy
Saw It Coming
40%inclusion2 decks5 decks
37%synergy
Arcane Denial
40%inclusion2 decks5 decks
4%synergy
Sink into Stupor
40%inclusion2 decks5 decks
19%synergy
High Tide
40%inclusion2 decks5 decks
-4%synergy
Pongify
20%inclusion1 decks5 decks
-20%synergy
Disdainful Stroke
20%inclusion1 decks5 decks
15%synergy
Frantic Search
20%inclusion1 decks5 decks
-10%synergy
Lose Focus
20%inclusion1 decks5 decks
19%synergy
Chain of Vapor
20%inclusion1 decks5 decks
15%synergy
Aetherspouts
20%inclusion1 decks5 decks
13%synergy
Mystic Reflection
20%inclusion1 decks5 decks
18%synergy
Redirect
20%inclusion1 decks5 decks
19%synergy
Divide by Zero
20%inclusion1 decks5 decks
20%synergy
Archmage's Charm
20%inclusion1 decks5 decks
4%synergy
Alchemist's Retrieval
20%inclusion1 decks5 decks
19%synergy
Filter Out
20%inclusion1 decks5 decks
16%synergy
Jwari Disruption
20%inclusion1 decks5 decks
15%synergy
Delay
20%inclusion1 decks5 decks
16%synergy
Cryptic Command
20%inclusion1 decks5 decks
9%synergy
Commandeer
20%inclusion1 decks5 decks
15%synergy
Silundi Vision
20%inclusion1 decks5 decks
15%synergy
Flow of Knowledge
20%inclusion1 decks5 decks
4%synergy
Whirlwind Denial
20%inclusion1 decks5 decks
18%synergy
Memory Lapse
20%inclusion1 decks5 decks
17%synergy
Thassa's Rebuff
20%inclusion1 decks5 decks
19%synergy
Mana Leak
20%inclusion1 decks5 decks
13%synergy
Hinder
20%inclusion1 decks5 decks
19%synergy
Confound
20%inclusion1 decks5 decks
19%synergy
Thassa's Intervention
20%inclusion1 decks5 decks
19%synergy
Sorceries
Devastation Tide
40%inclusion2 decks5 decks
37%synergy
Distant Melody
40%inclusion2 decks5 decks
35%synergy
Aquitect's Will
40%inclusion2 decks5 decks
35%synergy
Raise the Palisade
40%inclusion2 decks5 decks
37%synergy
Theft of Dreams
20%inclusion1 decks5 decks
20%synergy
Inundate
20%inclusion1 decks5 decks
18%synergy
Windfall
20%inclusion1 decks5 decks
-3%synergy
Sea Gate Restoration
20%inclusion1 decks5 decks
5%synergy
Season of Weaving
20%inclusion1 decks5 decks
15%synergy
Crashing Tide
20%inclusion1 decks5 decks
20%synergy
Commit // Memory
20%inclusion1 decks5 decks
17%synergy
Lórien Revealed
20%inclusion1 decks5 decks
11%synergy
Concentrate
20%inclusion1 decks5 decks
19%synergy
Spectral Deluge
20%inclusion1 decks5 decks
9%synergy
Step Through
20%inclusion1 decks5 decks
14%synergy
Timetwister
20%inclusion1 decks5 decks
18%synergy
Time Spiral
20%inclusion1 decks5 decks
19%synergy
Coastal Breach
20%inclusion1 decks5 decks
20%synergy
Whelming Wave
20%inclusion1 decks5 decks
16%synergy
Utility Artifacts
Lightning Greaves
60%inclusion3 decks5 decks
34%synergy
Bident of Thassa
60%inclusion3 decks5 decks
48%synergy
Vanquisher's Banner
40%inclusion2 decks5 decks
39%synergy
Urza's Incubator
40%inclusion2 decks5 decks
39%synergy
Kefnet's Monument
40%inclusion2 decks5 decks
33%synergy
Herald's Horn
40%inclusion2 decks5 decks
38%synergy
Swiftfoot Boots
40%inclusion2 decks5 decks
12%synergy
Quicksilver Fountain
20%inclusion1 decks5 decks
18%synergy
Sensei's Divining Top
20%inclusion1 decks5 decks
5%synergy
The Indomitable
20%inclusion1 decks5 decks
18%synergy
Wayfarer's Bauble
20%inclusion1 decks5 decks
2%synergy
Coat of Arms
20%inclusion1 decks5 decks
18%synergy
Heirloom Blade
20%inclusion1 decks5 decks
20%synergy
Banner of Kinship
20%inclusion1 decks5 decks
18%synergy
Scytheclaw
20%inclusion1 decks5 decks
20%synergy
Endless Atlas
20%inclusion1 decks5 decks
19%synergy
Blackblade Reforged
20%inclusion1 decks5 decks
15%synergy
Obelisk of Urd
20%inclusion1 decks5 decks
19%synergy
Renegade Map
20%inclusion1 decks5 decks
20%synergy
Enchantments
Kindred Discovery
60%inclusion3 decks5 decks
53%synergy
Deeproot Waters
60%inclusion3 decks5 decks
59%synergy
Merrow Commerce
60%inclusion3 decks5 decks
59%synergy
Reflections of Littjara
60%inclusion3 decks5 decks
57%synergy
Deeproot Pilgrimage
40%inclusion2 decks5 decks
39%synergy
Intruder Alarm
40%inclusion2 decks5 decks
37%synergy
Aquatic Incursion
40%inclusion2 decks5 decks
40%synergy
Reconnaissance Mission
20%inclusion1 decks5 decks
13%synergy
Drake Umbra
20%inclusion1 decks5 decks
20%synergy
Military Intelligence
20%inclusion1 decks5 decks
19%synergy
Eel Umbra
20%inclusion1 decks5 decks
18%synergy
Octopus Umbra
20%inclusion1 decks5 decks
19%synergy
Coastal Piracy
20%inclusion1 decks5 decks
16%synergy
Mystic Remora
20%inclusion1 decks5 decks
-7%synergy
Spreading Seas
20%inclusion1 decks5 decks
19%synergy
Retreat to Coralhelm
20%inclusion1 decks5 decks
17%synergy
Feywild Visitor
20%inclusion1 decks5 decks
19%synergy
Lingering Mirage
20%inclusion1 decks5 decks
20%synergy
Sea's Claim
20%inclusion1 decks5 decks
20%synergy
Planeswalkers
Tamiyo, the Moon Sage
20%inclusion1 decks5 decks
18%synergy
Utility Lands
Nykthos, Shrine to Nyx
60%inclusion3 decks5 decks
44%synergy
War Room
40%inclusion2 decks5 decks
24%synergy
Reliquary Tower
40%inclusion2 decks5 decks
-16%synergy
Otawara, Soaring City
40%inclusion2 decks5 decks
15%synergy
Rogue's Passage
40%inclusion2 decks5 decks
25%synergy
Mistrise Village
33%inclusion1 decks3 decks
24%synergy
Hall of Storm Giants
20%inclusion1 decks5 decks
18%synergy
Wasteland
20%inclusion1 decks5 decks
19%synergy
Minamo, School at Water's Edge
20%inclusion1 decks5 decks
8%synergy
Mystic Sanctuary
20%inclusion1 decks5 decks
-31%synergy
Ghost Quarter
20%inclusion1 decks5 decks
17%synergy
Seat of the Synod
20%inclusion1 decks5 decks
2%synergy
Tyrite Sanctum
20%inclusion1 decks5 decks
18%synergy
Coral Atoll
20%inclusion1 decks5 decks
16%synergy
Halimar Depths
20%inclusion1 decks5 decks
10%synergy
Riptide Laboratory
20%inclusion1 decks5 decks
10%synergy
Magosi, the Waterveil
20%inclusion1 decks5 decks
19%synergy
Scavenger Grounds
20%inclusion1 decks5 decks
13%synergy
Mutavault
20%inclusion1 decks5 decks
19%synergy
Lonely Sandbar
20%inclusion1 decks5 decks
6%synergy
Skyline Cascade
20%inclusion1 decks5 decks
19%synergy
Darksteel Citadel
20%inclusion1 decks5 decks
9%synergy
Hidden Cataract
20%inclusion1 decks5 decks
18%synergy
Soaring Seacliff
20%inclusion1 decks5 decks
19%synergy
Mikokoro, Center of the Sea
20%inclusion1 decks5 decks
16%synergy
Thespian's Stage
20%inclusion1 decks5 decks
18%synergy
Dark Depths
20%inclusion1 decks5 decks
19%synergy
Castle Vantress
20%inclusion1 decks5 decks
1%synergy
Temple of the False God
20%inclusion1 decks5 decks
10%synergy
Three Tree City
20%inclusion1 decks5 decks
17%synergy
Mana Artifacts
Arcane Signet
60%inclusion3 decks5 decks
-5%synergy
Patchwork Banner
60%inclusion3 decks5 decks
57%synergy
Sol Ring
60%inclusion3 decks5 decks
-25%synergy
Caged Sun
40%inclusion2 decks5 decks
28%synergy
Heraldic Banner
40%inclusion2 decks5 decks
34%synergy
Sky Diamond
20%inclusion1 decks5 decks
-4%synergy
Progenitor's Icon
20%inclusion1 decks5 decks
20%synergy
Decanter of Endless Water
20%inclusion1 decks5 decks
6%synergy
Fellwar Stone
20%inclusion1 decks5 decks
0%synergy
Thought Vessel
20%inclusion1 decks5 decks
-32%synergy
Midnight Clock
20%inclusion1 decks5 decks
-1%synergy
Sceptre of Eternal Glory
20%inclusion1 decks5 decks
16%synergy
Nyx Lotus
20%inclusion1 decks5 decks
16%synergy
Lands
Island
100%inclusion5 decks5 decks
7%synergy
Cavern of Souls
40%inclusion2 decks5 decks
35%synergy
Path of Ancestry
40%inclusion2 decks5 decks
36%synergy
Sink into Stupor
40%inclusion2 decks5 decks
19%synergy
Terramorphic Expanse
20%inclusion1 decks5 decks
17%synergy
Myriad Landscape
20%inclusion1 decks5 decks
-7%synergy
Sea Gate Restoration
20%inclusion1 decks5 decks
5%synergy
Hydroelectric Specimen
20%inclusion1 decks5 decks
7%synergy
Ash Barrens
20%inclusion1 decks5 decks
19%synergy
Umara Wizard
20%inclusion1 decks5 decks
20%synergy
Demolition Field
20%inclusion1 decks5 decks
15%synergy
Jwari Disruption
20%inclusion1 decks5 decks
15%synergy
Evolving Wilds
20%inclusion1 decks5 decks
16%synergy
Silundi Vision
20%inclusion1 decks5 decks
15%synergy
Glasspool Mimic
20%inclusion1 decks5 decks
14%synergy
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