Svyelun of Sea and Sky (Commander) - Optimized Control

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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Harmonized Crescendo
50%inclusion1 decks2 decks
47%synergy
Champions of the Shoal
50%inclusion1 decks2 decks
50%synergy
High Synergy Cards
Lord of Atlantis
100%inclusion4 decks4 decks
99%synergy
Harbinger of the Seas
100%inclusion4 decks4 decks
91%synergy
Game Changers
Fierce Guardianship
100%inclusion4 decks4 decks
77%synergy
Cyclonic Rift
100%inclusion4 decks4 decks
66%synergy
Rhystic Study
75%inclusion3 decks4 decks
42%synergy
Force of Will
75%inclusion3 decks4 decks
58%synergy
Thassa's Oracle
50%inclusion2 decks4 decks
37%synergy
Mystical Tutor
50%inclusion2 decks4 decks
27%synergy
Ancient Tomb
25%inclusion1 decks4 decks
13%synergy
Consecrated Sphinx
25%inclusion1 decks4 decks
13%synergy
The One Ring
25%inclusion1 decks4 decks
12%synergy
Chrome Mox
25%inclusion1 decks4 decks
16%synergy
Creatures
Coralhelm Commander
75%inclusion3 decks4 decks
74%synergy
Stonybrook Banneret
75%inclusion3 decks4 decks
71%synergy
Merfolk Sovereign
75%inclusion3 decks4 decks
73%synergy
Vodalian Hexcatcher
75%inclusion3 decks4 decks
73%synergy
Thassa, God of the Sea
75%inclusion3 decks4 decks
71%synergy
Merrow Reejerey
75%inclusion3 decks4 decks
73%synergy
Emperor Mihail II
75%inclusion3 decks4 decks
74%synergy
Mist-Cloaked Herald
75%inclusion3 decks4 decks
73%synergy
Lullmage Mentor
75%inclusion3 decks4 decks
73%synergy
Master of the Pearl Trident
75%inclusion3 decks4 decks
73%synergy
Thada Adel, Acquisitor
75%inclusion3 decks4 decks
73%synergy
Mist Dancer
75%inclusion3 decks4 decks
74%synergy
Seafloor Oracle
75%inclusion3 decks4 decks
74%synergy
Kopala, Warden of Waves
50%inclusion2 decks4 decks
49%synergy
Metallic Mimic
50%inclusion2 decks4 decks
49%synergy
Tishana's Tidebinder
50%inclusion2 decks4 decks
45%synergy
Roaming Throne
50%inclusion2 decks4 decks
46%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
Triton Shorestalker
50%inclusion2 decks4 decks
47%synergy
Glasspool Mimic
50%inclusion2 decks4 decks
44%synergy
Silvergill Adept
50%inclusion2 decks4 decks
49%synergy
Tide Shaper
50%inclusion2 decks4 decks
49%synergy
Talrand, Sky Summoner
50%inclusion2 decks4 decks
36%synergy
Empress Galina
50%inclusion2 decks4 decks
49%synergy
Summon: Leviathan
50%inclusion2 decks4 decks
48%synergy
Merrow Harbinger
25%inclusion1 decks4 decks
24%synergy
Master of Waves
25%inclusion1 decks4 decks
21%synergy
Bruvac the Grandiloquent
25%inclusion1 decks4 decks
21%synergy
Archmage of Runes
25%inclusion1 decks4 decks
13%synergy
Psychosis Crawler
25%inclusion1 decks4 decks
10%synergy
The Mindskinner
25%inclusion1 decks4 decks
22%synergy
Mindspring Merfolk
25%inclusion1 decks4 decks
24%synergy
Cosi's Trickster
25%inclusion1 decks4 decks
24%synergy
Rishadan Dockhand
25%inclusion1 decks4 decks
24%synergy
Tideshaper Mystic
25%inclusion1 decks4 decks
25%synergy
Surgespanner
25%inclusion1 decks4 decks
24%synergy
Toothy, Imaginary Friend
25%inclusion1 decks4 decks
22%synergy
Floodpits Drowner
25%inclusion1 decks4 decks
24%synergy
Adaptive Automaton
25%inclusion1 decks4 decks
24%synergy
Seahunter
25%inclusion1 decks4 decks
24%synergy
River Sneak
25%inclusion1 decks4 decks
24%synergy
Body of Knowledge
25%inclusion1 decks4 decks
18%synergy
Archmage Emeritus
25%inclusion1 decks4 decks
4%synergy
Mistway Spy
25%inclusion1 decks4 decks
25%synergy
Ancient Silver Dragon
25%inclusion1 decks4 decks
22%synergy
Alandra, Sky Dreamer
25%inclusion1 decks4 decks
18%synergy
Tidal Warrior
25%inclusion1 decks4 decks
24%synergy
Wanderwine Prophets
25%inclusion1 decks4 decks
24%synergy
Instants
Flare of Denial
75%inclusion3 decks4 decks
68%synergy
Mana Drain
75%inclusion3 decks4 decks
48%synergy
Counterspell
75%inclusion3 decks4 decks
9%synergy
Pongify
50%inclusion2 decks4 decks
10%synergy
Rapid Hybridization
50%inclusion2 decks4 decks
15%synergy
An Offer You Can't Refuse
50%inclusion2 decks4 decks
13%synergy
Negate
50%inclusion2 decks4 decks
12%synergy
Reality Shift
50%inclusion2 decks4 decks
23%synergy
Aetherize
50%inclusion2 decks4 decks
21%synergy
Archmage's Charm
50%inclusion2 decks4 decks
33%synergy
Filter Out
50%inclusion2 decks4 decks
46%synergy
Swan Song
50%inclusion2 decks4 decks
24%synergy
Force of Negation
50%inclusion2 decks4 decks
35%synergy
Sink into Stupor
50%inclusion2 decks4 decks
28%synergy
High Tide
50%inclusion2 decks4 decks
6%synergy
Frantic Search
25%inclusion1 decks4 decks
-5%synergy
Brainstorm
25%inclusion1 decks4 decks
-16%synergy
Stubborn Denial
25%inclusion1 decks4 decks
22%synergy
Focus the Mind
25%inclusion1 decks4 decks
24%synergy
Opt
25%inclusion1 decks4 decks
0%synergy
Strix Serenade
25%inclusion1 decks4 decks
16%synergy
Rain of Revelation
25%inclusion1 decks4 decks
25%synergy
Resculpt
25%inclusion1 decks4 decks
7%synergy
Flusterstorm
25%inclusion1 decks4 decks
15%synergy
Jwari Disruption
25%inclusion1 decks4 decks
20%synergy
Engulf the Shore
25%inclusion1 decks4 decks
17%synergy
Arcane Denial
25%inclusion1 decks4 decks
-11%synergy
Snap
25%inclusion1 decks4 decks
6%synergy
Thassa's Rebuff
25%inclusion1 decks4 decks
24%synergy
Unsubstantiate
25%inclusion1 decks4 decks
23%synergy
Misdirection
25%inclusion1 decks4 decks
20%synergy
March of Swirling Mist
25%inclusion1 decks4 decks
17%synergy
Pact of Negation
25%inclusion1 decks4 decks
15%synergy
Amazing Acrobatics
25%inclusion1 decks4 decks
23%synergy
Spider-Sense
25%inclusion1 decks4 decks
22%synergy
Sorceries
Raise the Palisade
75%inclusion3 decks4 decks
72%synergy
Sea Gate Restoration
50%inclusion2 decks4 decks
35%synergy
Distant Melody
50%inclusion2 decks4 decks
45%synergy
Aquitect's Will
50%inclusion2 decks4 decks
45%synergy
Ponder
25%inclusion1 decks4 decks
-5%synergy
Foresee
25%inclusion1 decks4 decks
24%synergy
Tamiyo's Epiphany
25%inclusion1 decks4 decks
24%synergy
Sift
25%inclusion1 decks4 decks
25%synergy
Merchant Scroll
25%inclusion1 decks4 decks
16%synergy
Sleep
25%inclusion1 decks4 decks
23%synergy
Baral's Expertise
25%inclusion1 decks4 decks
23%synergy
Concentrate
25%inclusion1 decks4 decks
24%synergy
Preordain
25%inclusion1 decks4 decks
1%synergy
Spectral Deluge
25%inclusion1 decks4 decks
14%synergy
River's Rebuke
25%inclusion1 decks4 decks
22%synergy
Winternight Stories
25%inclusion1 decks4 decks
24%synergy
Ancestral Reminiscence
25%inclusion1 decks4 decks
25%synergy
Maddening Cacophony
25%inclusion1 decks4 decks
18%synergy
Compulsive Research
25%inclusion1 decks4 decks
23%synergy
Utility Artifacts
Sapphire Medallion
75%inclusion3 decks4 decks
17%synergy
Quicksilver Fountain
50%inclusion2 decks4 decks
48%synergy
Kraken's Eye
25%inclusion1 decks4 decks
24%synergy
Wayfarer's Bauble
25%inclusion1 decks4 decks
7%synergy
Mindsplice Apparatus
25%inclusion1 decks4 decks
20%synergy
Coat of Arms
25%inclusion1 decks4 decks
23%synergy
Kefnet's Monument
25%inclusion1 decks4 decks
19%synergy
Herald's Horn
25%inclusion1 decks4 decks
23%synergy
Lightning Greaves
25%inclusion1 decks4 decks
-1%synergy
Brotherhood Regalia
25%inclusion1 decks4 decks
23%synergy
Sword of the Animist
25%inclusion1 decks4 decks
19%synergy
Bident of Thassa
25%inclusion1 decks4 decks
13%synergy
Aether Vial
25%inclusion1 decks4 decks
25%synergy
Insight Engine
25%inclusion1 decks4 decks
20%synergy
Cryogen Relic
25%inclusion1 decks4 decks
21%synergy
Enchantments
Merrow Commerce
75%inclusion3 decks4 decks
74%synergy
Kindred Discovery
50%inclusion2 decks4 decks
43%synergy
Deeproot Pilgrimage
50%inclusion2 decks4 decks
48%synergy
Mystic Remora
50%inclusion2 decks4 decks
23%synergy
Deeproot Waters
50%inclusion2 decks4 decks
49%synergy
Spreading Seas
50%inclusion2 decks4 decks
49%synergy
Reconnaissance Mission
25%inclusion1 decks4 decks
18%synergy
Teferi's Ageless Insight
25%inclusion1 decks4 decks
8%synergy
Intruder Alarm
25%inclusion1 decks4 decks
22%synergy
Psychic Corrosion
25%inclusion1 decks4 decks
17%synergy
Wizard Class
25%inclusion1 decks4 decks
8%synergy
Military Intelligence
25%inclusion1 decks4 decks
24%synergy
Fishliver Oil
25%inclusion1 decks4 decks
24%synergy
Amphibian Downpour
25%inclusion1 decks4 decks
19%synergy
Witness Protection
25%inclusion1 decks4 decks
19%synergy
Proft's Eidetic Memory
25%inclusion1 decks4 decks
17%synergy
Equilibrium
25%inclusion1 decks4 decks
25%synergy
Sea's Claim
25%inclusion1 decks4 decks
25%synergy
Planeswalkers
Teferi, Temporal Pilgrim
25%inclusion1 decks4 decks
20%synergy
Teferi, Master of Time
25%inclusion1 decks4 decks
20%synergy
Utility Lands
Three Tree City
75%inclusion3 decks4 decks
71%synergy
Otawara, Soaring City
75%inclusion3 decks4 decks
50%synergy
Rivendell
50%inclusion2 decks4 decks
39%synergy
Mutavault
50%inclusion2 decks4 decks
49%synergy
Nykthos, Shrine to Nyx
50%inclusion2 decks4 decks
34%synergy
Castle Vantress
50%inclusion2 decks4 decks
31%synergy
Minamo, School at Water's Edge
25%inclusion1 decks4 decks
13%synergy
Mystic Sanctuary
25%inclusion1 decks4 decks
-25%synergy
Mistrise Village
25%inclusion1 decks4 decks
16%synergy
Halimar Depths
25%inclusion1 decks4 decks
15%synergy
Svyelunite Temple
25%inclusion1 decks4 decks
24%synergy
Lonely Sandbar
25%inclusion1 decks4 decks
11%synergy
Sunken Palace
25%inclusion1 decks4 decks
21%synergy
Reliquary Tower
25%inclusion1 decks4 decks
-31%synergy
Rogue's Passage
25%inclusion1 decks4 decks
10%synergy
Mana Artifacts
Sol Ring
75%inclusion3 decks4 decks
-10%synergy
Arcane Signet
50%inclusion2 decks4 decks
-15%synergy
Thought Vessel
50%inclusion2 decks4 decks
-2%synergy
White Lotus Tile
50%inclusion2 decks4 decks
49%synergy
Caged Sun
25%inclusion1 decks4 decks
14%synergy
Sky Diamond
25%inclusion1 decks4 decks
2%synergy
Lotus Petal
25%inclusion1 decks4 decks
13%synergy
Patchwork Banner
25%inclusion1 decks4 decks
21%synergy
Mox Amber
25%inclusion1 decks4 decks
18%synergy
Fellwar Stone
25%inclusion1 decks4 decks
5%synergy
Springleaf Drum
25%inclusion1 decks4 decks
22%synergy
Mind Stone
25%inclusion1 decks4 decks
-11%synergy
Lands
Island
100%inclusion4 decks4 decks
6%synergy
Cavern of Souls
75%inclusion3 decks4 decks
70%synergy
Myriad Landscape
50%inclusion2 decks4 decks
24%synergy
Sea Gate Restoration
50%inclusion2 decks4 decks
35%synergy
Path of Ancestry
50%inclusion2 decks4 decks
46%synergy
Sink into Stupor
50%inclusion2 decks4 decks
28%synergy
Glasspool Mimic
50%inclusion2 decks4 decks
44%synergy
Fabled Passage
25%inclusion1 decks4 decks
22%synergy
Terramorphic Expanse
25%inclusion1 decks4 decks
22%synergy
Snow-Covered Island
25%inclusion1 decks4 decks
17%synergy
Jwari Disruption
25%inclusion1 decks4 decks
20%synergy
Plaza of Heroes
25%inclusion1 decks4 decks
24%synergy
Gemstone Caverns
25%inclusion1 decks4 decks
19%synergy
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