Svyelun of Sea and Sky (Commander) - Expensive Optimized

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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White Lotus Tile
50%inclusion1 decks2 decks
49%synergy
High Synergy Cards
Harbinger of the Seas
100%inclusion8 decks8 decks
91%synergy
Vodalian Hexcatcher
88%inclusion7 decks8 decks
86%synergy
Seahunter
75%inclusion6 decks8 decks
74%synergy
Emperor Mihail II
75%inclusion6 decks8 decks
74%synergy
Lord of Atlantis
75%inclusion6 decks8 decks
74%synergy
Kopala, Warden of Waves
75%inclusion6 decks8 decks
74%synergy
Deeproot Pilgrimage
75%inclusion6 decks8 decks
73%synergy
Merrow Reejerey
75%inclusion6 decks8 decks
73%synergy
Master of the Pearl Trident
75%inclusion6 decks8 decks
73%synergy
Nykthos, Shrine to Nyx
88%inclusion7 decks8 decks
71%synergy
Top Cards
Mana Drain
88%inclusion7 decks8 decks
61%synergy
Mystic Remora
88%inclusion7 decks8 decks
60%synergy
Swan Song
75%inclusion6 decks8 decks
49%synergy
Sapphire Medallion
75%inclusion6 decks8 decks
18%synergy
Tishana's Tidebinder
75%inclusion6 decks8 decks
70%synergy
High Tide
75%inclusion6 decks8 decks
31%synergy
Thieving Skydiver
75%inclusion6 decks8 decks
71%synergy
Force of Negation
63%inclusion5 decks8 decks
47%synergy
Counterspell
63%inclusion5 decks8 decks
-4%synergy
Tide Shaper
63%inclusion5 decks8 decks
62%synergy
Game Changers
Rhystic Study
100%inclusion8 decks8 decks
66%synergy
Cyclonic Rift
100%inclusion8 decks8 decks
65%synergy
Mystical Tutor
88%inclusion7 decks8 decks
64%synergy
Force of Will
88%inclusion7 decks8 decks
70%synergy
Fierce Guardianship
88%inclusion7 decks8 decks
64%synergy
Ancient Tomb
50%inclusion4 decks8 decks
38%synergy
Thassa's Oracle
50%inclusion4 decks8 decks
37%synergy
Chrome Mox
38%inclusion3 decks8 decks
28%synergy
Narset, Parter of Veils
25%inclusion2 decks8 decks
13%synergy
Mana Vault
25%inclusion2 decks8 decks
14%synergy
Creatures
Stonybrook Banneret
63%inclusion5 decks8 decks
59%synergy
True-Name Nemesis
63%inclusion5 decks8 decks
62%synergy
Empress Galina
63%inclusion5 decks8 decks
62%synergy
Merfolk Trickster
63%inclusion5 decks8 decks
61%synergy
Seafloor Oracle
63%inclusion5 decks8 decks
61%synergy
Merrow Harbinger
50%inclusion4 decks8 decks
49%synergy
Lullmage Mentor
50%inclusion4 decks8 decks
48%synergy
Silvergill Adept
50%inclusion4 decks8 decks
49%synergy
Thassa, God of the Sea
50%inclusion4 decks8 decks
46%synergy
Wanderwine Prophets
50%inclusion4 decks8 decks
49%synergy
Thada Adel, Acquisitor
50%inclusion4 decks8 decks
48%synergy
Mist Dancer
50%inclusion4 decks8 decks
49%synergy
Merfolk Sovereign
50%inclusion4 decks8 decks
48%synergy
Master of Waves
38%inclusion3 decks8 decks
34%synergy
Roaming Throne
38%inclusion3 decks8 decks
33%synergy
Coralhelm Commander
38%inclusion3 decks8 decks
37%synergy
Harbinger of the Tides
38%inclusion3 decks8 decks
36%synergy
Cursecatcher
38%inclusion3 decks8 decks
36%synergy
Glasspool Mimic
38%inclusion3 decks8 decks
31%synergy
Rishadan Dockhand
38%inclusion3 decks8 decks
37%synergy
Rootwater Thief
38%inclusion3 decks8 decks
37%synergy
Summon: Leviathan
29%inclusion2 decks7 decks
27%synergy
Mindspring Merfolk
29%inclusion2 decks7 decks
28%synergy
Cosi's Trickster
25%inclusion2 decks8 decks
24%synergy
Deepchannel Mentor
25%inclusion2 decks8 decks
24%synergy
Gilded Drake
25%inclusion2 decks8 decks
22%synergy
Mistcaller
25%inclusion2 decks8 decks
24%synergy
Talrand, Sky Summoner
25%inclusion2 decks8 decks
11%synergy
Wake Thrasher
25%inclusion2 decks8 decks
24%synergy
Metallic Mimic
25%inclusion2 decks8 decks
24%synergy
Tempest Caller
25%inclusion2 decks8 decks
24%synergy
Seasinger
25%inclusion2 decks8 decks
25%synergy
Streambed Aquitects
25%inclusion2 decks8 decks
24%synergy
Solemn Simulacrum
13%inclusion1 decks8 decks
-10%synergy
Eluge, the Shoreless Sea
13%inclusion1 decks8 decks
4%synergy
Thassa, Deep-Dwelling
13%inclusion1 decks8 decks
8%synergy
Mirror Image
13%inclusion1 decks8 decks
11%synergy
Alandra, Sky Dreamer
13%inclusion1 decks8 decks
6%synergy
Defiler of Dreams
13%inclusion1 decks8 decks
3%synergy
Baral, Chief of Compliance
13%inclusion1 decks8 decks
1%synergy
Emry, Lurker of the Loch
13%inclusion1 decks8 decks
1%synergy
Tidebinder Mage
13%inclusion1 decks8 decks
12%synergy
Stormtide Leviathan
13%inclusion1 decks8 decks
6%synergy
Vedalken Aethermage
13%inclusion1 decks8 decks
10%synergy
Archmage of Runes
13%inclusion1 decks8 decks
1%synergy
Razorfin Abolisher
13%inclusion1 decks8 decks
12%synergy
Leech Bonder
13%inclusion1 decks8 decks
12%synergy
Malevolent Hermit
13%inclusion1 decks8 decks
9%synergy
Adaptive Automaton
13%inclusion1 decks8 decks
11%synergy
River Sneak
13%inclusion1 decks8 decks
12%synergy
Instants
Pongify
50%inclusion4 decks8 decks
10%synergy
Muddle the Mixture
50%inclusion4 decks8 decks
34%synergy
Brainstorm
50%inclusion4 decks8 decks
9%synergy
Arcane Denial
50%inclusion4 decks8 decks
14%synergy
Sink into Stupor
50%inclusion4 decks8 decks
29%synergy
Flare of Denial
50%inclusion4 decks8 decks
43%synergy
Reality Shift
50%inclusion4 decks8 decks
22%synergy
Rapid Hybridization
38%inclusion3 decks8 decks
3%synergy
Misdirection
38%inclusion3 decks8 decks
32%synergy
Aetherize
38%inclusion3 decks8 decks
9%synergy
Archmage's Charm
38%inclusion3 decks8 decks
21%synergy
An Offer You Can't Refuse
38%inclusion3 decks8 decks
1%synergy
Cyber Conversion
38%inclusion3 decks8 decks
34%synergy
Cryptic Command
25%inclusion2 decks8 decks
14%synergy
Narset's Reversal
25%inclusion2 decks8 decks
13%synergy
Spell Pierce
25%inclusion2 decks8 decks
17%synergy
Strix Serenade
25%inclusion2 decks8 decks
15%synergy
Silundi Vision
25%inclusion2 decks8 decks
20%synergy
Pact of Negation
25%inclusion2 decks8 decks
15%synergy
Evacuation
25%inclusion2 decks8 decks
17%synergy
Blur
13%inclusion1 decks8 decks
7%synergy
Frantic Search
13%inclusion1 decks8 decks
-17%synergy
Mental Misstep
13%inclusion1 decks8 decks
6%synergy
Negate
13%inclusion1 decks8 decks
-26%synergy
Brainsurge
13%inclusion1 decks8 decks
5%synergy
Mystic Reflection
13%inclusion1 decks8 decks
11%synergy
Gifts Ungiven
13%inclusion1 decks8 decks
11%synergy
Polymorphist's Jest
13%inclusion1 decks8 decks
11%synergy
Dispel
13%inclusion1 decks8 decks
3%synergy
Capsize
13%inclusion1 decks8 decks
8%synergy
Resculpt
13%inclusion1 decks8 decks
-6%synergy
Gale's Redirection
13%inclusion1 decks8 decks
12%synergy
Reins of Power
13%inclusion1 decks8 decks
10%synergy
Snap
13%inclusion1 decks8 decks
-6%synergy
Pull from Tomorrow
13%inclusion1 decks8 decks
3%synergy
Hydroblast
13%inclusion1 decks8 decks
11%synergy
Thassa's Rebuff
13%inclusion1 decks8 decks
11%synergy
Long-Term Plans
13%inclusion1 decks8 decks
9%synergy
Impulse
13%inclusion1 decks8 decks
7%synergy
Flusterstorm
13%inclusion1 decks8 decks
3%synergy
Into the Flood Maw
13%inclusion1 decks8 decks
7%synergy
Borne Upon a Wind
13%inclusion1 decks8 decks
8%synergy
Snapback
13%inclusion1 decks8 decks
11%synergy
Dig Through Time
13%inclusion1 decks8 decks
3%synergy
Chain of Vapor
13%inclusion1 decks8 decks
7%synergy
Stern Dismissal
13%inclusion1 decks8 decks
12%synergy
Mindbreak Trap
13%inclusion1 decks8 decks
7%synergy
Daze
13%inclusion1 decks8 decks
10%synergy
Slip Out the Back
13%inclusion1 decks8 decks
5%synergy
Filter Out
13%inclusion1 decks8 decks
8%synergy
Sorceries
Ponder
63%inclusion5 decks8 decks
33%synergy
Sea Gate Restoration
50%inclusion4 decks8 decks
35%synergy
Raise the Palisade
38%inclusion3 decks8 decks
34%synergy
Personal Tutor
38%inclusion3 decks8 decks
33%synergy
Aquitect's Will
38%inclusion3 decks8 decks
32%synergy
Bribery
25%inclusion2 decks8 decks
21%synergy
Solve the Equation
25%inclusion2 decks8 decks
12%synergy
Paradigm Shift
25%inclusion2 decks8 decks
24%synergy
Stock Up
14%inclusion1 decks7 decks
11%synergy
Chart a Course
13%inclusion1 decks8 decks
8%synergy
Slip Through Space
13%inclusion1 decks8 decks
8%synergy
Treasure Cruise
13%inclusion1 decks8 decks
1%synergy
Lórien Revealed
13%inclusion1 decks8 decks
3%synergy
Merchant Scroll
13%inclusion1 decks8 decks
3%synergy
Capture of Jingzhou
13%inclusion1 decks8 decks
10%synergy
Expropriate
13%inclusion1 decks8 decks
9%synergy
Step Through
13%inclusion1 decks8 decks
7%synergy
Windfall
13%inclusion1 decks8 decks
-10%synergy
Walk the Aeons
13%inclusion1 decks8 decks
10%synergy
Gitaxian Probe
13%inclusion1 decks8 decks
1%synergy
Consuming Tide
13%inclusion1 decks8 decks
9%synergy
Inevitable Betrayal
13%inclusion1 decks8 decks
11%synergy
Timetwister
13%inclusion1 decks8 decks
10%synergy
Ravenform
13%inclusion1 decks8 decks
3%synergy
Acquire
13%inclusion1 decks8 decks
11%synergy
Lunar Insight
13%inclusion1 decks8 decks
11%synergy
Temporal Mastery
13%inclusion1 decks8 decks
9%synergy
Preordain
13%inclusion1 decks8 decks
-12%synergy
Distant Melody
13%inclusion1 decks8 decks
7%synergy
Spectral Deluge
13%inclusion1 decks8 decks
1%synergy
Utility Artifacts
Herald's Horn
50%inclusion4 decks8 decks
48%synergy
Coat of Arms
25%inclusion2 decks8 decks
23%synergy
Aether Vial
25%inclusion2 decks8 decks
25%synergy
Quicksilver Fountain
25%inclusion2 decks8 decks
23%synergy
Wayfarer's Bauble
25%inclusion2 decks8 decks
7%synergy
Bident of Thassa
25%inclusion2 decks8 decks
13%synergy
Lightning Greaves
25%inclusion2 decks8 decks
-1%synergy
Umezawa's Jitte
13%inclusion1 decks8 decks
12%synergy
Banner of Kinship
13%inclusion1 decks8 decks
10%synergy
Winged Boots
13%inclusion1 decks8 decks
9%synergy
Urza's Incubator
13%inclusion1 decks8 decks
11%synergy
Sensei's Divining Top
13%inclusion1 decks8 decks
-3%synergy
The Key to the Vault
13%inclusion1 decks8 decks
11%synergy
Explorer's Scope
13%inclusion1 decks8 decks
11%synergy
Commander's Plate
13%inclusion1 decks8 decks
8%synergy
The One Ring
13%inclusion1 decks8 decks
0%synergy
Swiftfoot Boots
13%inclusion1 decks8 decks
-16%synergy
Sword of Feast and Famine
13%inclusion1 decks8 decks
11%synergy
Brotherhood Regalia
13%inclusion1 decks8 decks
11%synergy
Enchantments
Deeproot Waters
50%inclusion4 decks8 decks
49%synergy
Merrow Commerce
50%inclusion4 decks8 decks
49%synergy
Reflections of Littjara
38%inclusion3 decks8 decks
34%synergy
Kindred Discovery
38%inclusion3 decks8 decks
31%synergy
Back to Basics
25%inclusion2 decks8 decks
17%synergy
Equilibrium
25%inclusion2 decks8 decks
25%synergy
Propaganda
25%inclusion2 decks8 decks
-5%synergy
Imprisoned in the Moon
25%inclusion2 decks8 decks
13%synergy
Spreading Seas
25%inclusion2 decks8 decks
24%synergy
Thought Lash
13%inclusion1 decks8 decks
12%synergy
Dress Down
13%inclusion1 decks8 decks
10%synergy
Telepathy
13%inclusion1 decks8 decks
10%synergy
Counterbalance
13%inclusion1 decks8 decks
9%synergy
Reconnaissance Mission
13%inclusion1 decks8 decks
6%synergy
Amphibian Downpour
13%inclusion1 decks8 decks
7%synergy
Intruder Alarm
13%inclusion1 decks8 decks
9%synergy
Frozen Aether
13%inclusion1 decks8 decks
11%synergy
Steal Enchantment
13%inclusion1 decks8 decks
11%synergy
Fishliver Oil
13%inclusion1 decks8 decks
12%synergy
Treachery
13%inclusion1 decks8 decks
11%synergy
Witness Protection
13%inclusion1 decks8 decks
7%synergy
Planeswalkers
Jace, Wielder of Mysteries
13%inclusion1 decks8 decks
-2%synergy
Teferi, Master of Time
13%inclusion1 decks8 decks
7%synergy
Utility Lands
Mystic Sanctuary
100%inclusion8 decks8 decks
49%synergy
Mutavault
63%inclusion5 decks8 decks
62%synergy
Otawara, Soaring City
63%inclusion5 decks8 decks
37%synergy
Minamo, School at Water's Edge
50%inclusion4 decks8 decks
38%synergy
Rivendell
38%inclusion3 decks8 decks
26%synergy
Riptide Laboratory
38%inclusion3 decks8 decks
27%synergy
Castle Vantress
38%inclusion3 decks8 decks
19%synergy
Three Tree City
38%inclusion3 decks8 decks
34%synergy
Strip Mine
25%inclusion2 decks8 decks
22%synergy
Reliquary Tower
25%inclusion2 decks8 decks
-31%synergy
Mistrise Village
14%inclusion1 decks7 decks
5%synergy
Hall of Storm Giants
13%inclusion1 decks8 decks
10%synergy
Wasteland
13%inclusion1 decks8 decks
11%synergy
Emergence Zone
13%inclusion1 decks8 decks
8%synergy
Lonely Sandbar
13%inclusion1 decks8 decks
-2%synergy
Skyline Cascade
13%inclusion1 decks8 decks
11%synergy
Rogue's Passage
13%inclusion1 decks8 decks
-2%synergy
Scavenger Grounds
13%inclusion1 decks8 decks
5%synergy
Halimar Depths
13%inclusion1 decks8 decks
2%synergy
Tolaria West
13%inclusion1 decks8 decks
7%synergy
Urza's Saga
13%inclusion1 decks8 decks
-4%synergy
Svyelunite Temple
13%inclusion1 decks8 decks
12%synergy
War Room
13%inclusion1 decks8 decks
-4%synergy
Soaring Seacliff
13%inclusion1 decks8 decks
12%synergy
Mana Artifacts
Sol Ring
100%inclusion8 decks8 decks
15%synergy
Arcane Signet
50%inclusion4 decks8 decks
-15%synergy
Thought Vessel
38%inclusion3 decks8 decks
-14%synergy
Lotus Petal
38%inclusion3 decks8 decks
25%synergy
Mox Amber
25%inclusion2 decks8 decks
18%synergy
Commander's Sphere
13%inclusion1 decks8 decks
2%synergy
Heraldic Banner
13%inclusion1 decks8 decks
7%synergy
Paradise Mantle
13%inclusion1 decks8 decks
10%synergy
Gauntlet of Power
13%inclusion1 decks8 decks
8%synergy
Throne of Eldraine
13%inclusion1 decks8 decks
3%synergy
Midnight Clock
13%inclusion1 decks8 decks
-8%synergy
Mind Stone
13%inclusion1 decks8 decks
-24%synergy
Mox Diamond
13%inclusion1 decks8 decks
7%synergy
Grim Monolith
13%inclusion1 decks8 decks
7%synergy
Patchwork Banner
13%inclusion1 decks8 decks
9%synergy
Fellwar Stone
13%inclusion1 decks8 decks
-7%synergy
Lands
Island
100%inclusion8 decks8 decks
7%synergy
Cavern of Souls
75%inclusion6 decks8 decks
70%synergy
Sea Gate Restoration
50%inclusion4 decks8 decks
35%synergy
Sink into Stupor
50%inclusion4 decks8 decks
29%synergy
Glasspool Mimic
38%inclusion3 decks8 decks
31%synergy
Scalding Tarn
25%inclusion2 decks8 decks
17%synergy
Flooded Strand
25%inclusion2 decks8 decks
17%synergy
Misty Rainforest
25%inclusion2 decks8 decks
17%synergy
Prismatic Vista
25%inclusion2 decks8 decks
20%synergy
Silundi Vision
25%inclusion2 decks8 decks
20%synergy
Gemstone Caverns
25%inclusion2 decks8 decks
19%synergy
Fabled Passage
13%inclusion1 decks8 decks
10%synergy
Path of Ancestry
13%inclusion1 decks8 decks
9%synergy
Terramorphic Expanse
13%inclusion1 decks8 decks
9%synergy
Snow-Covered Island
13%inclusion1 decks8 decks
4%synergy
Polluted Delta
13%inclusion1 decks8 decks
4%synergy
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