Svyelun of Sea and Sky (Commander) - Upgraded Merfolk

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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Merfolk Sovereign
100%inclusion4 decks4 decks
98%synergy
Master of the Pearl Trident
100%inclusion4 decks4 decks
98%synergy
Sapphire Medallion
100%inclusion4 decks4 decks
44%synergy
Game Changers
Thassa's Oracle
25%inclusion1 decks4 decks
12%synergy
Creatures
Kopala, Warden of Waves
75%inclusion3 decks4 decks
74%synergy
Merrow Harbinger
75%inclusion3 decks4 decks
74%synergy
Stonybrook Banneret
75%inclusion3 decks4 decks
71%synergy
Sigil Tracer
75%inclusion3 decks4 decks
74%synergy
Thassa, God of the Sea
75%inclusion3 decks4 decks
71%synergy
Merrow Reejerey
75%inclusion3 decks4 decks
73%synergy
Lullmage Mentor
75%inclusion3 decks4 decks
73%synergy
Wanderwine Prophets
75%inclusion3 decks4 decks
74%synergy
Harbinger of the Tides
75%inclusion3 decks4 decks
74%synergy
Lord of Atlantis
75%inclusion3 decks4 decks
74%synergy
Tide Shaper
75%inclusion3 decks4 decks
74%synergy
Merfolk Trickster
75%inclusion3 decks4 decks
73%synergy
Tidebinder Mage
75%inclusion3 decks4 decks
75%synergy
Master of Waves
50%inclusion2 decks4 decks
46%synergy
Cosi's Trickster
50%inclusion2 decks4 decks
49%synergy
Vodalian Hexcatcher
50%inclusion2 decks4 decks
48%synergy
Deepchannel Mentor
50%inclusion2 decks4 decks
49%synergy
Kiora, the Rising Tide
50%inclusion2 decks4 decks
47%synergy
Streambed Aquitects
50%inclusion2 decks4 decks
49%synergy
Merfolk Looter
50%inclusion2 decks4 decks
48%synergy
Emperor Mihail II
50%inclusion2 decks4 decks
49%synergy
Triton Shorestalker
50%inclusion2 decks4 decks
48%synergy
Defiler of Dreams
50%inclusion2 decks4 decks
41%synergy
Thada Adel, Acquisitor
50%inclusion2 decks4 decks
48%synergy
Tempest Caller
50%inclusion2 decks4 decks
49%synergy
Enclave Cryptologist
50%inclusion2 decks4 decks
49%synergy
Mist Dancer
50%inclusion2 decks4 decks
49%synergy
Silvergill Adept
50%inclusion2 decks4 decks
49%synergy
Stonybrook Angler
50%inclusion2 decks4 decks
50%synergy
Sea Scryer
50%inclusion2 decks4 decks
49%synergy
Wake Thrasher
50%inclusion2 decks4 decks
49%synergy
Thieving Skydiver
50%inclusion2 decks4 decks
46%synergy
Seafloor Oracle
50%inclusion2 decks4 decks
49%synergy
Coralhelm Commander
25%inclusion1 decks4 decks
24%synergy
Azami, Lady of Scrolls
25%inclusion1 decks4 decks
21%synergy
True-Name Nemesis
25%inclusion1 decks4 decks
24%synergy
Stormtide Leviathan
25%inclusion1 decks4 decks
18%synergy
Whirlpool Rider
25%inclusion1 decks4 decks
25%synergy
Tandem Lookout
25%inclusion1 decks4 decks
24%synergy
Vodalian Arcanist
25%inclusion1 decks4 decks
25%synergy
Rootwater Matriarch
25%inclusion1 decks4 decks
25%synergy
Thassa, Deep-Dwelling
25%inclusion1 decks4 decks
21%synergy
Mulldrifter
25%inclusion1 decks4 decks
18%synergy
Tishana's Tidebinder
25%inclusion1 decks4 decks
20%synergy
Sentinel of the Pearl Trident
25%inclusion1 decks4 decks
25%synergy
Rishadan Dockhand
25%inclusion1 decks4 decks
24%synergy
Tideshaper Mystic
25%inclusion1 decks4 decks
25%synergy
Surgespanner
25%inclusion1 decks4 decks
25%synergy
Merfolk Wayfinder
25%inclusion1 decks4 decks
25%synergy
Hydroelectric Specimen
25%inclusion1 decks4 decks
12%synergy
Instants
Counterspell
75%inclusion3 decks4 decks
8%synergy
An Offer You Can't Refuse
50%inclusion2 decks4 decks
14%synergy
Negate
50%inclusion2 decks4 decks
11%synergy
Resculpt
50%inclusion2 decks4 decks
30%synergy
Engulf the Shore
50%inclusion2 decks4 decks
41%synergy
High Tide
50%inclusion2 decks4 decks
6%synergy
Pongify
25%inclusion1 decks4 decks
-15%synergy
Disdainful Stroke
25%inclusion1 decks4 decks
20%synergy
Frantic Search
25%inclusion1 decks4 decks
-4%synergy
Lose Focus
25%inclusion1 decks4 decks
24%synergy
Aetherspouts
25%inclusion1 decks4 decks
18%synergy
Mystic Reflection
25%inclusion1 decks4 decks
23%synergy
Redirect
25%inclusion1 decks4 decks
24%synergy
Archmage's Charm
25%inclusion1 decks4 decks
9%synergy
Filter Out
25%inclusion1 decks4 decks
20%synergy
Swan Song
25%inclusion1 decks4 decks
-1%synergy
Saw It Coming
25%inclusion1 decks4 decks
22%synergy
Jwari Disruption
25%inclusion1 decks4 decks
20%synergy
Cryptic Command
25%inclusion1 decks4 decks
14%synergy
Arcane Denial
25%inclusion1 decks4 decks
-11%synergy
Commandeer
25%inclusion1 decks4 decks
21%synergy
Silundi Vision
25%inclusion1 decks4 decks
19%synergy
Flow of Knowledge
25%inclusion1 decks4 decks
8%synergy
Whirlwind Denial
25%inclusion1 decks4 decks
23%synergy
Thassa's Rebuff
25%inclusion1 decks4 decks
24%synergy
Sink into Stupor
25%inclusion1 decks4 decks
4%synergy
Mana Leak
25%inclusion1 decks4 decks
18%synergy
Hinder
25%inclusion1 decks4 decks
24%synergy
Confound
25%inclusion1 decks4 decks
24%synergy
Thassa's Intervention
25%inclusion1 decks4 decks
24%synergy
Sorceries
Aquitect's Will
50%inclusion2 decks4 decks
45%synergy
Theft of Dreams
25%inclusion1 decks4 decks
25%synergy
Inundate
25%inclusion1 decks4 decks
23%synergy
Windfall
25%inclusion1 decks4 decks
2%synergy
Devastation Tide
25%inclusion1 decks4 decks
22%synergy
Sea Gate Restoration
25%inclusion1 decks4 decks
11%synergy
Crashing Tide
25%inclusion1 decks4 decks
25%synergy
Concentrate
25%inclusion1 decks4 decks
24%synergy
Distant Melody
25%inclusion1 decks4 decks
20%synergy
Spectral Deluge
25%inclusion1 decks4 decks
14%synergy
Step Through
25%inclusion1 decks4 decks
19%synergy
Timetwister
25%inclusion1 decks4 decks
23%synergy
Time Spiral
25%inclusion1 decks4 decks
23%synergy
Coastal Breach
25%inclusion1 decks4 decks
25%synergy
Whelming Wave
25%inclusion1 decks4 decks
20%synergy
Raise the Palisade
25%inclusion1 decks4 decks
22%synergy
Utility Artifacts
Bident of Thassa
75%inclusion3 decks4 decks
63%synergy
Vanquisher's Banner
50%inclusion2 decks4 decks
49%synergy
Kefnet's Monument
50%inclusion2 decks4 decks
43%synergy
Lightning Greaves
50%inclusion2 decks4 decks
24%synergy
Quicksilver Fountain
25%inclusion1 decks4 decks
23%synergy
The Indomitable
25%inclusion1 decks4 decks
23%synergy
Coat of Arms
25%inclusion1 decks4 decks
23%synergy
Heirloom Blade
25%inclusion1 decks4 decks
25%synergy
Scytheclaw
25%inclusion1 decks4 decks
25%synergy
Urza's Incubator
25%inclusion1 decks4 decks
24%synergy
Herald's Horn
25%inclusion1 decks4 decks
23%synergy
Swiftfoot Boots
25%inclusion1 decks4 decks
-3%synergy
Endless Atlas
25%inclusion1 decks4 decks
24%synergy
Blackblade Reforged
25%inclusion1 decks4 decks
20%synergy
Obelisk of Urd
25%inclusion1 decks4 decks
24%synergy
Enchantments
Kindred Discovery
75%inclusion3 decks4 decks
68%synergy
Merrow Commerce
75%inclusion3 decks4 decks
74%synergy
Reflections of Littjara
75%inclusion3 decks4 decks
71%synergy
Deeproot Waters
50%inclusion2 decks4 decks
49%synergy
Aquatic Incursion
50%inclusion2 decks4 decks
50%synergy
Reconnaissance Mission
25%inclusion1 decks4 decks
18%synergy
Deeproot Pilgrimage
25%inclusion1 decks4 decks
24%synergy
Intruder Alarm
25%inclusion1 decks4 decks
22%synergy
Drake Umbra
25%inclusion1 decks4 decks
25%synergy
Military Intelligence
25%inclusion1 decks4 decks
24%synergy
Eel Umbra
25%inclusion1 decks4 decks
23%synergy
Octopus Umbra
25%inclusion1 decks4 decks
24%synergy
Coastal Piracy
25%inclusion1 decks4 decks
21%synergy
Mystic Remora
25%inclusion1 decks4 decks
-3%synergy
Spreading Seas
25%inclusion1 decks4 decks
24%synergy
Retreat to Coralhelm
25%inclusion1 decks4 decks
22%synergy
Feywild Visitor
25%inclusion1 decks4 decks
24%synergy
Lingering Mirage
25%inclusion1 decks4 decks
25%synergy
Sea's Claim
25%inclusion1 decks4 decks
25%synergy
Planeswalkers
Tamiyo, the Moon Sage
25%inclusion1 decks4 decks
23%synergy
Utility Lands
Nykthos, Shrine to Nyx
50%inclusion2 decks4 decks
34%synergy
Reliquary Tower
50%inclusion2 decks4 decks
-6%synergy
Hall of Storm Giants
25%inclusion1 decks4 decks
22%synergy
Wasteland
25%inclusion1 decks4 decks
24%synergy
Minamo, School at Water's Edge
25%inclusion1 decks4 decks
13%synergy
Mystic Sanctuary
25%inclusion1 decks4 decks
-26%synergy
Ghost Quarter
25%inclusion1 decks4 decks
22%synergy
Seat of the Synod
25%inclusion1 decks4 decks
7%synergy
Tyrite Sanctum
25%inclusion1 decks4 decks
23%synergy
Coral Atoll
25%inclusion1 decks4 decks
21%synergy
Halimar Depths
25%inclusion1 decks4 decks
15%synergy
Riptide Laboratory
25%inclusion1 decks4 decks
14%synergy
Magosi, the Waterveil
25%inclusion1 decks4 decks
24%synergy
Scavenger Grounds
25%inclusion1 decks4 decks
18%synergy
Mutavault
25%inclusion1 decks4 decks
24%synergy
War Room
25%inclusion1 decks4 decks
9%synergy
Lonely Sandbar
25%inclusion1 decks4 decks
10%synergy
Skyline Cascade
25%inclusion1 decks4 decks
24%synergy
Darksteel Citadel
25%inclusion1 decks4 decks
13%synergy
Hidden Cataract
25%inclusion1 decks4 decks
23%synergy
Soaring Seacliff
25%inclusion1 decks4 decks
24%synergy
Mikokoro, Center of the Sea
25%inclusion1 decks4 decks
21%synergy
Thespian's Stage
25%inclusion1 decks4 decks
23%synergy
Dark Depths
25%inclusion1 decks4 decks
24%synergy
Castle Vantress
25%inclusion1 decks4 decks
6%synergy
Temple of the False God
25%inclusion1 decks4 decks
15%synergy
Otawara, Soaring City
25%inclusion1 decks4 decks
0%synergy
Rogue's Passage
25%inclusion1 decks4 decks
10%synergy
Mana Artifacts
Sol Ring
75%inclusion3 decks4 decks
-11%synergy
Caged Sun
50%inclusion2 decks4 decks
38%synergy
Arcane Signet
50%inclusion2 decks4 decks
-15%synergy
Patchwork Banner
50%inclusion2 decks4 decks
47%synergy
Sky Diamond
25%inclusion1 decks4 decks
1%synergy
Heraldic Banner
25%inclusion1 decks4 decks
19%synergy
Progenitor's Icon
25%inclusion1 decks4 decks
25%synergy
Decanter of Endless Water
25%inclusion1 decks4 decks
10%synergy
Thought Vessel
25%inclusion1 decks4 decks
-27%synergy
Midnight Clock
25%inclusion1 decks4 decks
4%synergy
Sceptre of Eternal Glory
25%inclusion1 decks4 decks
21%synergy
Nyx Lotus
25%inclusion1 decks4 decks
21%synergy
Lands
Island
100%inclusion4 decks4 decks
7%synergy
Path of Ancestry
50%inclusion2 decks4 decks
46%synergy
Terramorphic Expanse
25%inclusion1 decks4 decks
22%synergy
Myriad Landscape
25%inclusion1 decks4 decks
-2%synergy
Sea Gate Restoration
25%inclusion1 decks4 decks
11%synergy
Hydroelectric Specimen
25%inclusion1 decks4 decks
12%synergy
Umara Wizard
25%inclusion1 decks4 decks
25%synergy
Cavern of Souls
25%inclusion1 decks4 decks
20%synergy
Demolition Field
25%inclusion1 decks4 decks
20%synergy
Jwari Disruption
25%inclusion1 decks4 decks
20%synergy
Evolving Wilds
25%inclusion1 decks4 decks
21%synergy
Silundi Vision
25%inclusion1 decks4 decks
19%synergy
Sink into Stupor
25%inclusion1 decks4 decks
4%synergy
Glasspool Mimic
25%inclusion1 decks4 decks
19%synergy
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