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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Champions of the Shoal
50%inclusion1 decks2 decks
50%synergy
Harmonized Crescendo
33%inclusion1 decks3 decks
30%synergy
Attuma, Atlantean Warlord
25%inclusion1 decks4 decks
24%synergy
High Synergy Cards
Harbinger of the Seas
100%inclusion9 decks9 decks
91%synergy
Lord of Atlantis
78%inclusion7 decks9 decks
76%synergy
Vodalian Hexcatcher
78%inclusion7 decks9 decks
76%synergy
Emperor Mihail II
67%inclusion6 decks9 decks
66%synergy
Kopala, Warden of Waves
67%inclusion6 decks9 decks
65%synergy
Merrow Reejerey
67%inclusion6 decks9 decks
65%synergy
Master of the Pearl Trident
67%inclusion6 decks9 decks
65%synergy
Thieving Skydiver
67%inclusion6 decks9 decks
63%synergy
Tishana's Tidebinder
67%inclusion6 decks9 decks
62%synergy
Mana Drain
89%inclusion8 decks9 decks
62%synergy
Top Cards
Mystic Remora
78%inclusion7 decks9 decks
51%synergy
Counterspell
78%inclusion7 decks9 decks
11%synergy
Swan Song
78%inclusion7 decks9 decks
51%synergy
Sapphire Medallion
78%inclusion7 decks9 decks
20%synergy
Force of Negation
67%inclusion6 decks9 decks
51%synergy
High Tide
67%inclusion6 decks9 decks
22%synergy
Stonybrook Banneret
56%inclusion5 decks9 decks
52%synergy
Deeproot Pilgrimage
56%inclusion5 decks9 decks
54%synergy
Seahunter
56%inclusion5 decks9 decks
55%synergy
Thada Adel, Acquisitor
56%inclusion5 decks9 decks
54%synergy
Game Changers
Rhystic Study
100%inclusion9 decks9 decks
67%synergy
Cyclonic Rift
100%inclusion9 decks9 decks
66%synergy
Fierce Guardianship
89%inclusion8 decks9 decks
66%synergy
Mystical Tutor
78%inclusion7 decks9 decks
54%synergy
Force of Will
78%inclusion7 decks9 decks
61%synergy
Ancient Tomb
56%inclusion5 decks9 decks
44%synergy
Thassa's Oracle
56%inclusion5 decks9 decks
43%synergy
Chrome Mox
44%inclusion4 decks9 decks
35%synergy
Mana Vault
22%inclusion2 decks9 decks
12%synergy
Narset, Parter of Veils
22%inclusion2 decks9 decks
11%synergy
Creatures
Mist Dancer
56%inclusion5 decks9 decks
55%synergy
Merfolk Trickster
56%inclusion5 decks9 decks
54%synergy
Merrow Harbinger
56%inclusion5 decks9 decks
54%synergy
True-Name Nemesis
56%inclusion5 decks9 decks
55%synergy
Lullmage Mentor
56%inclusion5 decks9 decks
54%synergy
Wanderwine Prophets
56%inclusion5 decks9 decks
55%synergy
Tide Shaper
56%inclusion5 decks9 decks
55%synergy
Seafloor Oracle
56%inclusion5 decks9 decks
54%synergy
Merfolk Sovereign
44%inclusion4 decks9 decks
43%synergy
Empress Galina
44%inclusion4 decks9 decks
44%synergy
Cursecatcher
44%inclusion4 decks9 decks
43%synergy
Silvergill Adept
44%inclusion4 decks9 decks
44%synergy
Harbinger of the Tides
44%inclusion4 decks9 decks
43%synergy
Roaming Throne
33%inclusion3 decks9 decks
29%synergy
Rootwater Thief
33%inclusion3 decks9 decks
33%synergy
Triton Shorestalker
33%inclusion3 decks9 decks
31%synergy
Mist-Cloaked Herald
33%inclusion3 decks9 decks
31%synergy
Talrand, Sky Summoner
33%inclusion3 decks9 decks
20%synergy
Wake Thrasher
33%inclusion3 decks9 decks
33%synergy
Coralhelm Commander
33%inclusion3 decks9 decks
33%synergy
Thassa, God of the Sea
33%inclusion3 decks9 decks
30%synergy
Glasspool Mimic
33%inclusion3 decks9 decks
27%synergy
Rishadan Dockhand
22%inclusion2 decks9 decks
22%synergy
Sigil Tracer
22%inclusion2 decks9 decks
21%synergy
Deepchannel Mentor
22%inclusion2 decks9 decks
21%synergy
Tempest Caller
22%inclusion2 decks9 decks
21%synergy
Archmage of Runes
22%inclusion2 decks9 decks
11%synergy
Mindspring Merfolk
22%inclusion2 decks9 decks
21%synergy
Gilded Drake
22%inclusion2 decks9 decks
20%synergy
Master of Waves
22%inclusion2 decks9 decks
19%synergy
Streambed Aquitects
22%inclusion2 decks9 decks
22%synergy
Alandra, Sky Dreamer
22%inclusion2 decks9 decks
15%synergy
Summon: Leviathan
22%inclusion2 decks9 decks
21%synergy
Wan Shi Tong, Librarian
20%inclusion1 decks5 decks
12%synergy
Lyla, Holographic Assistant
14%inclusion1 decks7 decks
11%synergy
Starwinder
14%inclusion1 decks7 decks
11%synergy
Solemn Simulacrum
11%inclusion1 decks9 decks
-11%synergy
The Mindskinner
11%inclusion1 decks9 decks
8%synergy
Malevolent Hermit
11%inclusion1 decks9 decks
8%synergy
River Sneak
11%inclusion1 decks9 decks
10%synergy
Laboratory Maniac
11%inclusion1 decks9 decks
-7%synergy
Tidebinder Mage
11%inclusion1 decks9 decks
11%synergy
Eluge, the Shoreless Sea
11%inclusion1 decks9 decks
3%synergy
Seasinger
11%inclusion1 decks9 decks
11%synergy
Bruvac the Grandiloquent
11%inclusion1 decks9 decks
7%synergy
Phyrexian Metamorph
11%inclusion1 decks9 decks
-8%synergy
Razorfin Abolisher
11%inclusion1 decks9 decks
11%synergy
Leech Bonder
11%inclusion1 decks9 decks
11%synergy
Spellseeker
11%inclusion1 decks9 decks
3%synergy
Adaptive Automaton
11%inclusion1 decks9 decks
10%synergy
Instants
Brainstorm
56%inclusion5 decks9 decks
14%synergy
Sink into Stupor
56%inclusion5 decks9 decks
34%synergy
Arcane Denial
56%inclusion5 decks9 decks
19%synergy
Misdirection
44%inclusion4 decks9 decks
39%synergy
Reality Shift
44%inclusion4 decks9 decks
17%synergy
An Offer You Can't Refuse
44%inclusion4 decks9 decks
7%synergy
Rapid Hybridization
33%inclusion3 decks9 decks
-1%synergy
Flare of Denial
33%inclusion3 decks9 decks
27%synergy
Frantic Search
33%inclusion3 decks9 decks
3%synergy
Pact of Negation
33%inclusion3 decks9 decks
23%synergy
Pongify
33%inclusion3 decks9 decks
-7%synergy
Muddle the Mixture
33%inclusion3 decks9 decks
18%synergy
Negate
33%inclusion3 decks9 decks
-5%synergy
Resculpt
22%inclusion2 decks9 decks
4%synergy
Archmage's Charm
22%inclusion2 decks9 decks
5%synergy
Aetherize
22%inclusion2 decks9 decks
-7%synergy
Cryptic Command
22%inclusion2 decks9 decks
11%synergy
Snap
22%inclusion2 decks9 decks
4%synergy
Narset's Reversal
22%inclusion2 decks9 decks
10%synergy
Cyber Conversion
22%inclusion2 decks9 decks
19%synergy
Strix Serenade
22%inclusion2 decks9 decks
13%synergy
Flusterstorm
22%inclusion2 decks9 decks
13%synergy
Silundi Vision
22%inclusion2 decks9 decks
17%synergy
Evacuation
22%inclusion2 decks9 decks
14%synergy
Blur
11%inclusion1 decks9 decks
6%synergy
Chain of Vapor
11%inclusion1 decks9 decks
6%synergy
Stern Dismissal
11%inclusion1 decks9 decks
10%synergy
Mindbreak Trap
11%inclusion1 decks9 decks
6%synergy
Slip Out the Back
11%inclusion1 decks9 decks
3%synergy
Into the Flood Maw
11%inclusion1 decks9 decks
5%synergy
Reins of Power
11%inclusion1 decks9 decks
9%synergy
Pull from Tomorrow
11%inclusion1 decks9 decks
2%synergy
Trickery Charm
11%inclusion1 decks9 decks
11%synergy
Unsubstantiate
11%inclusion1 decks9 decks
9%synergy
Mental Misstep
11%inclusion1 decks9 decks
4%synergy
Focus the Mind
11%inclusion1 decks9 decks
10%synergy
Dispel
11%inclusion1 decks9 decks
2%synergy
Daze
11%inclusion1 decks9 decks
9%synergy
Opt
11%inclusion1 decks9 decks
-14%synergy
Capsize
11%inclusion1 decks9 decks
7%synergy
Rain of Revelation
11%inclusion1 decks9 decks
11%synergy
Gale's Redirection
11%inclusion1 decks9 decks
11%synergy
Filter Out
11%inclusion1 decks9 decks
7%synergy
Tale's End
11%inclusion1 decks9 decks
8%synergy
Hydroblast
11%inclusion1 decks9 decks
10%synergy
Mana Leak
11%inclusion1 decks9 decks
5%synergy
Borne Upon a Wind
11%inclusion1 decks9 decks
6%synergy
Spell Pierce
11%inclusion1 decks9 decks
3%synergy
Impulse
11%inclusion1 decks9 decks
6%synergy
Dig Through Time
11%inclusion1 decks9 decks
1%synergy
Sorceries
Ponder
56%inclusion5 decks9 decks
26%synergy
Sea Gate Restoration
56%inclusion5 decks9 decks
41%synergy
Raise the Palisade
44%inclusion4 decks9 decks
41%synergy
Personal Tutor
33%inclusion3 decks9 decks
29%synergy
Aquitect's Will
33%inclusion3 decks9 decks
28%synergy
Windfall
22%inclusion2 decks9 decks
0%synergy
Bribery
22%inclusion2 decks9 decks
18%synergy
Paradigm Shift
22%inclusion2 decks9 decks
22%synergy
Preordain
22%inclusion2 decks9 decks
-2%synergy
Timetwister
22%inclusion2 decks9 decks
20%synergy
Solve the Equation
22%inclusion2 decks9 decks
10%synergy
Gitaxian Probe
11%inclusion1 decks9 decks
0%synergy
Stock Up
11%inclusion1 decks9 decks
8%synergy
Baral's Expertise
11%inclusion1 decks9 decks
9%synergy
Distant Melody
11%inclusion1 decks9 decks
6%synergy
Spectral Deluge
11%inclusion1 decks9 decks
0%synergy
Winternight Stories
11%inclusion1 decks9 decks
10%synergy
Acquire
11%inclusion1 decks9 decks
10%synergy
Walk the Aeons
11%inclusion1 decks9 decks
9%synergy
Consuming Tide
11%inclusion1 decks9 decks
8%synergy
Slip Through Space
11%inclusion1 decks9 decks
7%synergy
Tamiyo's Epiphany
11%inclusion1 decks9 decks
10%synergy
Treasure Cruise
11%inclusion1 decks9 decks
0%synergy
Temporal Mastery
11%inclusion1 decks9 decks
8%synergy
Lórien Revealed
11%inclusion1 decks9 decks
2%synergy
Concentrate
11%inclusion1 decks9 decks
10%synergy
Expropriate
11%inclusion1 decks9 decks
7%synergy
Inevitable Betrayal
11%inclusion1 decks9 decks
10%synergy
Maddening Cacophony
11%inclusion1 decks9 decks
4%synergy
Compulsive Research
11%inclusion1 decks9 decks
9%synergy
Chart a Course
11%inclusion1 decks9 decks
7%synergy
Foresee
11%inclusion1 decks9 decks
10%synergy
Lunar Insight
11%inclusion1 decks9 decks
10%synergy
Sift
11%inclusion1 decks9 decks
11%synergy
Merchant Scroll
11%inclusion1 decks9 decks
2%synergy
Capture of Jingzhou
11%inclusion1 decks9 decks
8%synergy
Step Through
11%inclusion1 decks9 decks
6%synergy
River's Rebuke
11%inclusion1 decks9 decks
8%synergy
Ancestral Reminiscence
11%inclusion1 decks9 decks
11%synergy
Utility Artifacts
Herald's Horn
44%inclusion4 decks9 decks
43%synergy
Lightning Greaves
33%inclusion3 decks9 decks
7%synergy
Quicksilver Fountain
22%inclusion2 decks9 decks
21%synergy
Bident of Thassa
22%inclusion2 decks9 decks
10%synergy
Wayfarer's Bauble
22%inclusion2 decks9 decks
4%synergy
The One Ring
22%inclusion2 decks9 decks
10%synergy
Swiftfoot Boots
22%inclusion2 decks9 decks
-6%synergy
Insight Engine
14%inclusion1 decks7 decks
9%synergy
Banner of Kinship
11%inclusion1 decks9 decks
9%synergy
Explorer's Scope
11%inclusion1 decks9 decks
10%synergy
Sword of Feast and Famine
11%inclusion1 decks9 decks
10%synergy
Winged Boots
11%inclusion1 decks9 decks
8%synergy
Kefnet's Monument
11%inclusion1 decks9 decks
5%synergy
Brotherhood Regalia
11%inclusion1 decks9 decks
10%synergy
Sensei's Divining Top
11%inclusion1 decks9 decks
-4%synergy
Umezawa's Jitte
11%inclusion1 decks9 decks
11%synergy
Coat of Arms
11%inclusion1 decks9 decks
10%synergy
Urza's Incubator
11%inclusion1 decks9 decks
10%synergy
Aether Vial
11%inclusion1 decks9 decks
11%synergy
Enchantments
Deeproot Waters
44%inclusion4 decks9 decks
43%synergy
Kindred Discovery
44%inclusion4 decks9 decks
38%synergy
Merrow Commerce
44%inclusion4 decks9 decks
43%synergy
Reflections of Littjara
33%inclusion3 decks9 decks
30%synergy
Back to Basics
22%inclusion2 decks9 decks
15%synergy
Equilibrium
22%inclusion2 decks9 decks
22%synergy
Intruder Alarm
22%inclusion2 decks9 decks
19%synergy
Spreading Seas
22%inclusion2 decks9 decks
21%synergy
Propaganda
22%inclusion2 decks9 decks
-8%synergy
Military Intelligence
11%inclusion1 decks9 decks
10%synergy
Thought Lash
11%inclusion1 decks9 decks
10%synergy
Amphibian Downpour
11%inclusion1 decks9 decks
5%synergy
Proft's Eidetic Memory
11%inclusion1 decks9 decks
3%synergy
Telepathy
11%inclusion1 decks9 decks
9%synergy
Reconnaissance Mission
11%inclusion1 decks9 decks
4%synergy
Teferi's Ageless Insight
11%inclusion1 decks9 decks
-6%synergy
Steal Enchantment
11%inclusion1 decks9 decks
10%synergy
Fishliver Oil
11%inclusion1 decks9 decks
10%synergy
Counterbalance
11%inclusion1 decks9 decks
7%synergy
Frozen Aether
11%inclusion1 decks9 decks
10%synergy
Psychic Corrosion
11%inclusion1 decks9 decks
3%synergy
Treachery
11%inclusion1 decks9 decks
10%synergy
Witness Protection
11%inclusion1 decks9 decks
5%synergy
Planeswalkers
Teferi, Master of Time
22%inclusion2 decks9 decks
17%synergy
Teferi, Temporal Pilgrim
11%inclusion1 decks9 decks
6%synergy
Jace, Wielder of Mysteries
11%inclusion1 decks9 decks
-4%synergy
Utility Lands
Mystic Sanctuary
89%inclusion8 decks9 decks
38%synergy
Nykthos, Shrine to Nyx
78%inclusion7 decks9 decks
62%synergy
Otawara, Soaring City
67%inclusion6 decks9 decks
41%synergy
Mutavault
56%inclusion5 decks9 decks
55%synergy
Minamo, School at Water's Edge
56%inclusion5 decks9 decks
43%synergy
Castle Vantress
33%inclusion3 decks9 decks
15%synergy
Three Tree City
33%inclusion3 decks9 decks
30%synergy
Hall of Storm Giants
22%inclusion2 decks9 decks
20%synergy
Riptide Laboratory
22%inclusion2 decks9 decks
12%synergy
Rivendell
22%inclusion2 decks9 decks
11%synergy
Scavenger Grounds
22%inclusion2 decks9 decks
15%synergy
Strip Mine
22%inclusion2 decks9 decks
19%synergy
Mistrise Village
11%inclusion1 decks9 decks
2%synergy
Urza's Saga
11%inclusion1 decks9 decks
-6%synergy
War Room
11%inclusion1 decks9 decks
-5%synergy
Field of Ruin
11%inclusion1 decks9 decks
9%synergy
Wasteland
11%inclusion1 decks9 decks
10%synergy
Tolaria West
11%inclusion1 decks9 decks
5%synergy
Reliquary Tower
11%inclusion1 decks9 decks
-45%synergy
Mana Artifacts
Sol Ring
100%inclusion9 decks9 decks
15%synergy
Arcane Signet
67%inclusion6 decks9 decks
2%synergy
Thought Vessel
56%inclusion5 decks9 decks
4%synergy
Lotus Petal
44%inclusion4 decks9 decks
32%synergy
Mox Amber
33%inclusion3 decks9 decks
26%synergy
Fellwar Stone
22%inclusion2 decks9 decks
2%synergy
Patchwork Banner
22%inclusion2 decks9 decks
19%synergy
Mind Stone
22%inclusion2 decks9 decks
-14%synergy
White Lotus Tile
20%inclusion1 decks5 decks
19%synergy
Midnight Clock
11%inclusion1 decks9 decks
-9%synergy
Grim Monolith
11%inclusion1 decks9 decks
6%synergy
Paradise Mantle
11%inclusion1 decks9 decks
8%synergy
Gauntlet of Power
11%inclusion1 decks9 decks
7%synergy
Throne of Eldraine
11%inclusion1 decks9 decks
2%synergy
Mox Diamond
11%inclusion1 decks9 decks
5%synergy
Lands
Island
100%inclusion9 decks9 decks
6%synergy
Cavern of Souls
78%inclusion7 decks9 decks
73%synergy
Sink into Stupor
56%inclusion5 decks9 decks
34%synergy
Sea Gate Restoration
56%inclusion5 decks9 decks
41%synergy
Gemstone Caverns
44%inclusion4 decks9 decks
38%synergy
Glasspool Mimic
33%inclusion3 decks9 decks
27%synergy
Misty Rainforest
22%inclusion2 decks9 decks
14%synergy
Flooded Strand
22%inclusion2 decks9 decks
14%synergy
Prismatic Vista
22%inclusion2 decks9 decks
18%synergy
Silundi Vision
22%inclusion2 decks9 decks
17%synergy
Scalding Tarn
22%inclusion2 decks9 decks
14%synergy
Terramorphic Expanse
11%inclusion1 decks9 decks
8%synergy
Hydroelectric Specimen
11%inclusion1 decks9 decks
-3%synergy
Snow-Covered Island
11%inclusion1 decks9 decks
3%synergy
Demolition Field
11%inclusion1 decks9 decks
6%synergy
Fabled Passage
11%inclusion1 decks9 decks
8%synergy
Plaza of Heroes
11%inclusion1 decks9 decks
10%synergy
Polluted Delta
11%inclusion1 decks9 decks
3%synergy
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