Svyelun of Sea and Sky (Commander) - 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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Attuma, Atlantean Warlord
25%inclusion4 decks16 decks
24%synergy
Disruptor of Currents
17%inclusion1 decks6 decks
16%synergy
White Lotus Tile
11%inclusion4 decks35 decks
10%synergy
Namor the Sub-Mariner
6.3%inclusion1 decks16 decks
6%synergy
Wan Shi Tong, Librarian
5.7%inclusion2 decks35 decks
-3%synergy
High Synergy Cards
Master of the Pearl Trident
94%inclusion82 decks87 decks
93%synergy
Merrow Reejerey
93%inclusion81 decks87 decks
92%synergy
Emperor Mihail II
86%inclusion75 decks87 decks
85%synergy
Vodalian Hexcatcher
86%inclusion75 decks87 decks
85%synergy
Lord of Atlantis
85%inclusion74 decks87 decks
84%synergy
Kopala, Warden of Waves
85%inclusion74 decks87 decks
84%synergy
Merfolk Sovereign
85%inclusion74 decks87 decks
83%synergy
Harbinger of the Seas
89%inclusion77 decks87 decks
80%synergy
Merrow Commerce
80%inclusion70 decks87 decks
79%synergy
Stonybrook Banneret
82%inclusion71 decks87 decks
78%synergy
Top Cards
Counterspell
78%inclusion68 decks87 decks
12%synergy
Deeproot Waters
78%inclusion68 decks87 decks
77%synergy
Seafloor Oracle
77%inclusion67 decks87 decks
76%synergy
Deeproot Pilgrimage
76%inclusion66 decks87 decks
74%synergy
Merrow Harbinger
74%inclusion64 decks87 decks
73%synergy
Sapphire Medallion
71%inclusion62 decks87 decks
13%synergy
Thieving Skydiver
69%inclusion60 decks87 decks
65%synergy
Lullmage Mentor
68%inclusion59 decks87 decks
66%synergy
Bident of Thassa
68%inclusion59 decks87 decks
56%synergy
Tide Shaper
63%inclusion55 decks87 decks
62%synergy
Game Changers
Rhystic Study
55%inclusion48 decks87 decks
22%synergy
Cyclonic Rift
54%inclusion47 decks87 decks
20%synergy
Fierce Guardianship
44%inclusion38 decks87 decks
21%synergy
Thassa's Oracle
38%inclusion33 decks87 decks
25%synergy
Force of Will
25%inclusion22 decks87 decks
8%synergy
Mystical Tutor
24%inclusion21 decks87 decks
1%synergy
Ancient Tomb
9.2%inclusion8 decks87 decks
-3%synergy
Narset, Parter of Veils
9.2%inclusion8 decks87 decks
-2%synergy
Chrome Mox
5.7%inclusion5 decks87 decks
-4%synergy
Creatures
Tishana's Tidebinder
63%inclusion55 decks87 decks
59%synergy
Merfolk Trickster
60%inclusion52 decks87 decks
58%synergy
Harbinger of the Tides
59%inclusion51 decks87 decks
57%synergy
Deepchannel Mentor
59%inclusion51 decks87 decks
57%synergy
Mist Dancer
57%inclusion50 decks87 decks
57%synergy
True-Name Nemesis
52%inclusion45 decks87 decks
51%synergy
Thada Adel, Acquisitor
52%inclusion45 decks87 decks
50%synergy
Wanderwine Prophets
52%inclusion45 decks87 decks
51%synergy
Coralhelm Commander
51%inclusion44 decks87 decks
50%synergy
Silvergill Adept
48%inclusion42 decks87 decks
48%synergy
Triton Shorestalker
45%inclusion39 decks87 decks
42%synergy
Seahunter
44%inclusion38 decks87 decks
43%synergy
Thassa, God of the Sea
41%inclusion36 decks87 decks
38%synergy
Master of Waves
40%inclusion35 decks87 decks
37%synergy
Mist-Cloaked Herald
39%inclusion34 decks87 decks
37%synergy
Tempest Caller
37%inclusion32 decks87 decks
36%synergy
River Sneak
33%inclusion29 decks87 decks
33%synergy
Rishadan Dockhand
33%inclusion29 decks87 decks
33%synergy
Empress Galina
32%inclusion28 decks87 decks
31%synergy
Cosi's Trickster
31%inclusion27 decks87 decks
30%synergy
Kiora, the Rising Tide
30%inclusion26 decks86 decks
27%synergy
Wake Thrasher
29%inclusion25 decks87 decks
28%synergy
Cursecatcher
29%inclusion25 decks87 decks
27%synergy
Mindspring Merfolk
27%inclusion23 decks85 decks
26%synergy
Streambed Aquitects
25%inclusion22 decks87 decks
25%synergy
Talrand, Sky Summoner
25%inclusion22 decks87 decks
11%synergy
Floodpits Drowner
23%inclusion20 decks87 decks
22%synergy
Roaming Throne
21%inclusion18 decks87 decks
16%synergy
Summon: Leviathan
17%inclusion12 decks69 decks
16%synergy
Tidal Warrior
17%inclusion15 decks87 decks
17%synergy
Mistcaller
17%inclusion15 decks87 decks
16%synergy
Stormtide Leviathan
16%inclusion14 decks87 decks
9%synergy
Merfolk Looter
16%inclusion14 decks87 decks
14%synergy
Metallic Mimic
15%inclusion13 decks87 decks
14%synergy
Alandra, Sky Dreamer
15%inclusion13 decks87 decks
8%synergy
Glasspool Mimic
15%inclusion13 decks87 decks
9%synergy
Tideshaper Mystic
14%inclusion12 decks87 decks
13%synergy
Defiler of Dreams
13%inclusion11 decks87 decks
4%synergy
Benthic Biomancer
11%inclusion10 decks87 decks
11%synergy
Library Larcenist
11%inclusion10 decks87 decks
11%synergy
Sea Scryer
11%inclusion10 decks87 decks
10%synergy
Titan of Littjara
11%inclusion10 decks87 decks
10%synergy
Wonder
11%inclusion10 decks87 decks
6%synergy
Surgespanner
10%inclusion9 decks87 decks
10%synergy
Shipwreck Dowser
10%inclusion9 decks87 decks
8%synergy
Tidebinder Mage
10%inclusion9 decks87 decks
10%synergy
Eluge, the Shoreless Sea
9.2%inclusion8 decks87 decks
1%synergy
Sigil Tracer
9.2%inclusion8 decks87 decks
8%synergy
Slinn Voda, the Rising Deep
9.2%inclusion8 decks87 decks
8%synergy
Gray Harbor Merfolk
9.2%inclusion8 decks87 decks
9%synergy
Instants
High Tide
57%inclusion50 decks87 decks
13%synergy
Pongify
49%inclusion43 decks87 decks
9%synergy
Negate
48%inclusion42 decks87 decks
10%synergy
Rapid Hybridization
45%inclusion39 decks87 decks
10%synergy
Mana Drain
44%inclusion38 decks87 decks
17%synergy
Aetherize
43%inclusion37 decks87 decks
14%synergy
Swan Song
41%inclusion36 decks87 decks
15%synergy
Reality Shift
37%inclusion32 decks87 decks
9%synergy
Brainstorm
34%inclusion30 decks87 decks
-7%synergy
An Offer You Can't Refuse
32%inclusion28 decks87 decks
-5%synergy
Force of Negation
32%inclusion28 decks87 decks
17%synergy
Thassa's Rebuff
30%inclusion26 decks87 decks
29%synergy
Arcane Denial
30%inclusion26 decks87 decks
-6%synergy
Flare of Denial
29%inclusion25 decks87 decks
22%synergy
Filter Out
17%inclusion15 decks87 decks
13%synergy
Flow of Knowledge
16%inclusion14 decks87 decks
0%synergy
Sink into Stupor
16%inclusion14 decks87 decks
-6%synergy
Spell Pierce
15%inclusion13 decks87 decks
6%synergy
Pact of Negation
15%inclusion13 decks87 decks
5%synergy
Frantic Search
14%inclusion12 decks87 decks
-16%synergy
Opt
14%inclusion12 decks87 decks
-11%synergy
Resculpt
14%inclusion12 decks87 decks
-5%synergy
Cryptic Command
14%inclusion12 decks87 decks
2%synergy
Archmage's Charm
13%inclusion11 decks87 decks
-4%synergy
Mana Leak
11%inclusion10 decks87 decks
5%synergy
Dispel
11%inclusion10 decks87 decks
2%synergy
Strix Serenade
11%inclusion10 decks87 decks
2%synergy
Muddle the Mixture
10%inclusion9 decks87 decks
-6%synergy
Cancel
10%inclusion9 decks87 decks
5%synergy
March of Swirling Mist
9.2%inclusion8 decks87 decks
1%synergy
Engulf the Shore
9.2%inclusion8 decks87 decks
1%synergy
Unsummon
8.0%inclusion7 decks87 decks
4%synergy
Misdirection
8.0%inclusion7 decks87 decks
3%synergy
Snap
6.9%inclusion6 decks87 decks
-11%synergy
Narset's Reversal
6.9%inclusion6 decks87 decks
-5%synergy
Rewind
5.7%inclusion5 decks87 decks
-7%synergy
Essence Scatter
5.7%inclusion5 decks87 decks
2%synergy
Flusterstorm
5.7%inclusion5 decks87 decks
-4%synergy
Disallow
5.7%inclusion5 decks87 decks
-1%synergy
Wash Away
5.7%inclusion5 decks87 decks
1%synergy
Wizard's Retort
5.7%inclusion5 decks87 decks
1%synergy
Thassa's Intervention
5.7%inclusion5 decks87 decks
5%synergy
Unwind
5.7%inclusion5 decks87 decks
-4%synergy
Sorceries
Aquitect's Will
53%inclusion46 decks87 decks
48%synergy
Distant Melody
45%inclusion39 decks87 decks
40%synergy
Ponder
37%inclusion32 decks87 decks
7%synergy
Raise the Palisade
33%inclusion29 decks87 decks
30%synergy
Inundate
22%inclusion19 decks87 decks
20%synergy
Spectral Deluge
18%inclusion16 decks87 decks
7%synergy
Preordain
17%inclusion15 decks87 decks
-7%synergy
Curse of the Swine
15%inclusion13 decks87 decks
3%synergy
Sea Gate Restoration
14%inclusion12 decks87 decks
-1%synergy
Ravenform
13%inclusion11 decks87 decks
3%synergy
Crashing Tide
11%inclusion10 decks87 decks
11%synergy
Rite of Replication
10%inclusion9 decks87 decks
4%synergy
Chart a Course
9.2%inclusion8 decks87 decks
5%synergy
Windfall
8.0%inclusion7 decks87 decks
-15%synergy
Step Through
6.9%inclusion6 decks87 decks
1%synergy
Consuming Tide
6.9%inclusion6 decks87 decks
4%synergy
River's Rebuke
6.9%inclusion6 decks87 decks
3%synergy
Solve the Equation
6.9%inclusion6 decks87 decks
-6%synergy
Divination
5.7%inclusion5 decks87 decks
4%synergy
Wash Out
5.7%inclusion5 decks87 decks
1%synergy
Paradigm Shift
5.7%inclusion5 decks87 decks
5%synergy
Utility Artifacts
Herald's Horn
40%inclusion35 decks87 decks
38%synergy
Kefnet's Monument
31%inclusion27 decks87 decks
25%synergy
Vanquisher's Banner
29%inclusion25 decks87 decks
27%synergy
Swiftfoot Boots
26%inclusion23 decks87 decks
-2%synergy
Quicksilver Fountain
25%inclusion22 decks87 decks
24%synergy
Lightning Greaves
24%inclusion21 decks87 decks
-2%synergy
Door of Destinies
21%inclusion18 decks87 decks
20%synergy
Coat of Arms
15%inclusion13 decks87 decks
13%synergy
Banner of Kinship
10%inclusion9 decks86 decks
8%synergy
Aether Vial
9.2%inclusion8 decks87 decks
9%synergy
Winter Moon
9.2%inclusion8 decks87 decks
5%synergy
Sword of the Animist
9.2%inclusion8 decks87 decks
4%synergy
Icon of Ancestry
9.2%inclusion8 decks87 decks
9%synergy
Commander's Plate
8.0%inclusion7 decks87 decks
4%synergy
Wayfarer's Bauble
6.9%inclusion6 decks87 decks
-11%synergy
Urza's Incubator
5.7%inclusion5 decks87 decks
4%synergy
Stoneforge Masterwork
5.7%inclusion5 decks87 decks
5%synergy
Enchantments
Kindred Discovery
59%inclusion51 decks87 decks
52%synergy
Reflections of Littjara
44%inclusion38 decks87 decks
40%synergy
Mystic Remora
30%inclusion26 decks87 decks
3%synergy
Spreading Seas
30%inclusion26 decks87 decks
29%synergy
Reconnaissance Mission
22%inclusion19 decks87 decks
15%synergy
Propaganda
20%inclusion17 decks87 decks
-10%synergy
Imprisoned in the Moon
18%inclusion16 decks87 decks
6%synergy
Wizard Class
18%inclusion16 decks87 decks
2%synergy
Intruder Alarm
14%inclusion12 decks87 decks
11%synergy
Back to Basics
13%inclusion11 decks87 decks
5%synergy
Coastal Piracy
11%inclusion10 decks87 decks
7%synergy
Aquatic Incursion
10%inclusion9 decks87 decks
10%synergy
Eaten by Piranhas
10%inclusion9 decks87 decks
7%synergy
Witness Protection
9.2%inclusion8 decks87 decks
3%synergy
Military Intelligence
8.0%inclusion7 decks87 decks
7%synergy
Frogify
6.9%inclusion6 decks87 decks
5%synergy
Omniscience
6.9%inclusion6 decks87 decks
-2%synergy
Leyline of Anticipation
6.9%inclusion6 decks87 decks
-3%synergy
Sea's Claim
6.9%inclusion6 decks87 decks
7%synergy
Unable to Scream
5.7%inclusion5 decks87 decks
2%synergy
Teferi's Ageless Insight
5.7%inclusion5 decks87 decks
-11%synergy
Curiosity
5.7%inclusion5 decks87 decks
3%synergy
Amphibian Downpour
5.7%inclusion5 decks87 decks
0%synergy
Planeswalkers
Teferi, Master of Time
5.7%inclusion5 decks87 decks
1%synergy
Utility Lands
Reliquary Tower
61%inclusion53 decks87 decks
5%synergy
Mystic Sanctuary
61%inclusion53 decks87 decks
10%synergy
Nykthos, Shrine to Nyx
41%inclusion36 decks87 decks
25%synergy
Castle Vantress
33%inclusion29 decks87 decks
14%synergy
Otawara, Soaring City
30%inclusion26 decks87 decks
4%synergy
Three Tree City
29%inclusion25 decks87 decks
25%synergy
Halimar Depths
26%inclusion23 decks87 decks
16%synergy
Rogue's Passage
21%inclusion18 decks87 decks
6%synergy
Mutavault
18%inclusion16 decks87 decks
17%synergy
Lonely Sandbar
18%inclusion16 decks87 decks
4%synergy
Minamo, School at Water's Edge
15%inclusion13 decks87 decks
3%synergy
Riptide Laboratory
14%inclusion12 decks87 decks
4%synergy
War Room
13%inclusion11 decks87 decks
-3%synergy
Rivendell
11%inclusion10 decks87 decks
0%synergy
Hall of Storm Giants
10%inclusion9 decks87 decks
8%synergy
Svyelunite Temple
8.0%inclusion7 decks87 decks
7%synergy
Maze of Ith
6.9%inclusion6 decks87 decks
2%synergy
Coral Atoll
6.9%inclusion6 decks87 decks
3%synergy
Scavenger Grounds
6.9%inclusion6 decks87 decks
0%synergy
Temple of the False God
5.7%inclusion5 decks87 decks
-4%synergy
Academy Ruins
5.7%inclusion5 decks87 decks
-13%synergy
Mistrise Village
5.3%inclusion4 decks76 decks
-4%synergy
Mana Artifacts
Sol Ring
86%inclusion75 decks87 decks
1%synergy
Arcane Signet
47%inclusion41 decks87 decks
-18%synergy
Thought Vessel
44%inclusion38 decks87 decks
-8%synergy
Patchwork Banner
23%inclusion20 decks87 decks
19%synergy
Sky Diamond
17%inclusion15 decks87 decks
-6%synergy
Heraldic Banner
16%inclusion14 decks87 decks
10%synergy
Nyx Lotus
16%inclusion14 decks87 decks
12%synergy
Mind Stone
15%inclusion13 decks87 decks
-21%synergy
Caged Sun
9.2%inclusion8 decks87 decks
-2%synergy
Decanter of Endless Water
6.9%inclusion6 decks87 decks
-7%synergy
Throne of Eldraine
5.7%inclusion5 decks87 decks
-4%synergy
Mox Amber
5.7%inclusion5 decks87 decks
-2%synergy
Midnight Clock
5.7%inclusion5 decks87 decks
-15%synergy
Gauntlet of Power
5.7%inclusion5 decks87 decks
2%synergy
Lands
Island
95%inclusion83 decks87 decks
2%synergy
Path of Ancestry
40%inclusion35 decks87 decks
36%synergy
Cavern of Souls
39%inclusion34 decks87 decks
34%synergy
Myriad Landscape
21%inclusion18 decks87 decks
-6%synergy
Sink into Stupor
16%inclusion14 decks87 decks
-6%synergy
Glasspool Mimic
15%inclusion13 decks87 decks
9%synergy
Sea Gate Restoration
14%inclusion12 decks87 decks
-1%synergy
Snow-Covered Island
6.9%inclusion6 decks87 decks
-1%synergy
Evolving Wilds
6.9%inclusion6 decks87 decks
3%synergy
Flooded Strand
6.9%inclusion6 decks87 decks
-2%synergy
Command Tower
5.7%inclusion5 decks87 decks
1%synergy
Terramorphic Expanse
5.7%inclusion5 decks87 decks
2%synergy
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