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
40%inclusion2 decks5 decks
38%synergy
Namor the Sub-Mariner
20%inclusion1 decks5 decks
20%synergy
White Lotus Tile
15%inclusion4 decks27 decks
14%synergy
Wan Shi Tong, Librarian
3.7%inclusion1 decks27 decks
-4%synergy
High Synergy Cards
Merrow Reejerey
94%inclusion78 decks83 decks
92%synergy
Master of the Pearl Trident
94%inclusion78 decks83 decks
92%synergy
Vodalian Hexcatcher
88%inclusion73 decks83 decks
86%synergy
Emperor Mihail II
87%inclusion72 decks83 decks
86%synergy
Kopala, Warden of Waves
86%inclusion71 decks83 decks
84%synergy
Merfolk Sovereign
86%inclusion71 decks83 decks
84%synergy
Lord of Atlantis
84%inclusion70 decks83 decks
83%synergy
Deeproot Waters
81%inclusion67 decks83 decks
80%synergy
Merrow Commerce
80%inclusion66 decks83 decks
79%synergy
Stonybrook Banneret
82%inclusion68 decks83 decks
78%synergy
Top Cards
Harbinger of the Seas
87%inclusion72 decks83 decks
78%synergy
Deeproot Pilgrimage
80%inclusion66 decks83 decks
78%synergy
Counterspell
78%inclusion65 decks83 decks
12%synergy
Seafloor Oracle
78%inclusion65 decks83 decks
77%synergy
Merrow Harbinger
72%inclusion60 decks83 decks
71%synergy
Sapphire Medallion
71%inclusion59 decks83 decks
14%synergy
Bident of Thassa
70%inclusion58 decks83 decks
58%synergy
Thieving Skydiver
70%inclusion58 decks83 decks
66%synergy
Lullmage Mentor
69%inclusion57 decks83 decks
67%synergy
Tishana's Tidebinder
65%inclusion54 decks83 decks
60%synergy
Game Changers
Rhystic Study
53%inclusion44 decks83 decks
19%synergy
Cyclonic Rift
52%inclusion43 decks83 decks
17%synergy
Fierce Guardianship
41%inclusion34 decks83 decks
18%synergy
Thassa's Oracle
37%inclusion31 decks83 decks
24%synergy
Force of Will
25%inclusion21 decks83 decks
8%synergy
Mystical Tutor
24%inclusion20 decks83 decks
0%synergy
Narset, Parter of Veils
8.4%inclusion7 decks83 decks
-3%synergy
Ancient Tomb
8.4%inclusion7 decks83 decks
-4%synergy
Creatures
Tide Shaper
64%inclusion53 decks83 decks
63%synergy
Harbinger of the Tides
60%inclusion50 decks83 decks
59%synergy
Deepchannel Mentor
58%inclusion48 decks83 decks
57%synergy
Merfolk Trickster
58%inclusion48 decks83 decks
56%synergy
Mist Dancer
57%inclusion47 decks83 decks
56%synergy
True-Name Nemesis
52%inclusion43 decks83 decks
51%synergy
Thada Adel, Acquisitor
52%inclusion43 decks83 decks
50%synergy
Coralhelm Commander
51%inclusion42 decks83 decks
50%synergy
Wanderwine Prophets
51%inclusion42 decks83 decks
50%synergy
Silvergill Adept
47%inclusion39 decks83 decks
46%synergy
Triton Shorestalker
46%inclusion38 decks83 decks
43%synergy
Seahunter
45%inclusion37 decks83 decks
44%synergy
Master of Waves
45%inclusion37 decks83 decks
41%synergy
Thassa, God of the Sea
41%inclusion34 decks83 decks
37%synergy
Mist-Cloaked Herald
39%inclusion32 decks83 decks
36%synergy
Tempest Caller
35%inclusion29 decks83 decks
34%synergy
River Sneak
34%inclusion28 decks83 decks
33%synergy
Rishadan Dockhand
34%inclusion28 decks83 decks
33%synergy
Wake Thrasher
31%inclusion26 decks83 decks
31%synergy
Kiora, the Rising Tide
30%inclusion25 decks82 decks
27%synergy
Empress Galina
30%inclusion25 decks83 decks
29%synergy
Cosi's Trickster
29%inclusion24 decks83 decks
28%synergy
Mindspring Merfolk
28%inclusion23 decks81 decks
28%synergy
Streambed Aquitects
28%inclusion23 decks83 decks
27%synergy
Cursecatcher
28%inclusion23 decks83 decks
26%synergy
Floodpits Drowner
24%inclusion20 decks83 decks
23%synergy
Talrand, Sky Summoner
24%inclusion20 decks83 decks
10%synergy
Roaming Throne
22%inclusion18 decks83 decks
17%synergy
Summon: Leviathan
20%inclusion13 decks65 decks
18%synergy
Tidal Warrior
18%inclusion15 decks83 decks
18%synergy
Stormtide Leviathan
18%inclusion15 decks83 decks
11%synergy
Mistcaller
18%inclusion15 decks83 decks
17%synergy
Alandra, Sky Dreamer
16%inclusion13 decks83 decks
9%synergy
Merfolk Looter
16%inclusion13 decks83 decks
13%synergy
Tideshaper Mystic
14%inclusion12 decks83 decks
14%synergy
Metallic Mimic
14%inclusion12 decks83 decks
13%synergy
Glasspool Mimic
14%inclusion12 decks83 decks
8%synergy
Defiler of Dreams
12%inclusion10 decks83 decks
3%synergy
Titan of Littjara
12%inclusion10 decks83 decks
10%synergy
Slinn Voda, the Rising Deep
11%inclusion9 decks83 decks
10%synergy
Shipwreck Dowser
11%inclusion9 decks83 decks
8%synergy
Library Larcenist
11%inclusion9 decks83 decks
10%synergy
Wonder
11%inclusion9 decks83 decks
5%synergy
Sea Scryer
11%inclusion9 decks83 decks
10%synergy
Tidebinder Mage
10%inclusion8 decks83 decks
9%synergy
Thassa, Deep-Dwelling
10%inclusion8 decks83 decks
5%synergy
Surgespanner
10%inclusion8 decks83 decks
9%synergy
Benthic Biomancer
10%inclusion8 decks83 decks
9%synergy
Eluge, the Shoreless Sea
8.4%inclusion7 decks83 decks
0%synergy
Seasinger
8.4%inclusion7 decks83 decks
8%synergy
Instants
High Tide
59%inclusion49 decks83 decks
15%synergy
Pongify
51%inclusion42 decks83 decks
10%synergy
Negate
48%inclusion40 decks83 decks
10%synergy
Aetherize
45%inclusion37 decks83 decks
16%synergy
Rapid Hybridization
45%inclusion37 decks83 decks
10%synergy
Mana Drain
42%inclusion35 decks83 decks
15%synergy
Reality Shift
40%inclusion33 decks83 decks
12%synergy
Swan Song
40%inclusion33 decks83 decks
14%synergy
Brainstorm
36%inclusion30 decks83 decks
-5%synergy
An Offer You Can't Refuse
33%inclusion27 decks83 decks
-4%synergy
Arcane Denial
31%inclusion26 decks83 decks
-5%synergy
Thassa's Rebuff
31%inclusion26 decks83 decks
30%synergy
Flare of Denial
30%inclusion25 decks83 decks
23%synergy
Force of Negation
30%inclusion25 decks83 decks
15%synergy
Filter Out
19%inclusion16 decks83 decks
15%synergy
Flow of Knowledge
16%inclusion13 decks83 decks
-1%synergy
Spell Pierce
14%inclusion12 decks83 decks
6%synergy
Sink into Stupor
14%inclusion12 decks83 decks
-7%synergy
Resculpt
13%inclusion11 decks83 decks
-6%synergy
Cryptic Command
13%inclusion11 decks83 decks
2%synergy
Pact of Negation
13%inclusion11 decks83 decks
3%synergy
Archmage's Charm
13%inclusion11 decks83 decks
-3%synergy
Frantic Search
12%inclusion10 decks83 decks
-18%synergy
Muddle the Mixture
12%inclusion10 decks83 decks
-4%synergy
Opt
12%inclusion10 decks83 decks
-13%synergy
Strix Serenade
12%inclusion10 decks83 decks
2%synergy
Mana Leak
11%inclusion9 decks83 decks
4%synergy
Dispel
11%inclusion9 decks83 decks
2%synergy
Cancel
11%inclusion9 decks83 decks
6%synergy
March of Swirling Mist
10%inclusion8 decks83 decks
1%synergy
Engulf the Shore
10%inclusion8 decks83 decks
1%synergy
Unsummon
8.4%inclusion7 decks83 decks
4%synergy
Misdirection
7.2%inclusion6 decks83 decks
2%synergy
Narset's Reversal
7.2%inclusion6 decks83 decks
-5%synergy
Thassa's Intervention
6.0%inclusion5 decks83 decks
5%synergy
Snap
6.0%inclusion5 decks83 decks
-12%synergy
Rewind
6.0%inclusion5 decks83 decks
-7%synergy
Essence Scatter
6.0%inclusion5 decks83 decks
2%synergy
Disallow
6.0%inclusion5 decks83 decks
-1%synergy
Wash Away
6.0%inclusion5 decks83 decks
1%synergy
Sorceries
Aquitect's Will
54%inclusion45 decks83 decks
49%synergy
Distant Melody
46%inclusion38 decks83 decks
41%synergy
Ponder
39%inclusion32 decks83 decks
9%synergy
Raise the Palisade
33%inclusion27 decks83 decks
30%synergy
Inundate
23%inclusion19 decks83 decks
21%synergy
Preordain
17%inclusion14 decks83 decks
-7%synergy
Spectral Deluge
17%inclusion14 decks83 decks
6%synergy
Curse of the Swine
14%inclusion12 decks83 decks
3%synergy
Ravenform
13%inclusion11 decks83 decks
3%synergy
Sea Gate Restoration
12%inclusion10 decks83 decks
-3%synergy
Crashing Tide
12%inclusion10 decks83 decks
12%synergy
Chart a Course
10%inclusion8 decks83 decks
5%synergy
Rite of Replication
10%inclusion8 decks83 decks
3%synergy
Consuming Tide
7.2%inclusion6 decks83 decks
4%synergy
River's Rebuke
7.2%inclusion6 decks83 decks
4%synergy
Step Through
7.2%inclusion6 decks83 decks
2%synergy
Wash Out
7.2%inclusion6 decks83 decks
2%synergy
Divination
6.0%inclusion5 decks83 decks
4%synergy
Solve the Equation
6.0%inclusion5 decks83 decks
-7%synergy
Windfall
6.0%inclusion5 decks83 decks
-17%synergy
Paradigm Shift
6.0%inclusion5 decks83 decks
5%synergy
Utility Artifacts
Herald's Horn
40%inclusion33 decks83 decks
38%synergy
Kefnet's Monument
30%inclusion25 decks83 decks
24%synergy
Vanquisher's Banner
29%inclusion24 decks83 decks
28%synergy
Quicksilver Fountain
25%inclusion21 decks83 decks
24%synergy
Swiftfoot Boots
23%inclusion19 decks83 decks
-5%synergy
Door of Destinies
23%inclusion19 decks83 decks
22%synergy
Lightning Greaves
23%inclusion19 decks83 decks
-3%synergy
Coat of Arms
14%inclusion12 decks83 decks
13%synergy
Banner of Kinship
11%inclusion9 decks82 decks
8%synergy
Winter Moon
10%inclusion8 decks83 decks
5%synergy
Aether Vial
10%inclusion8 decks83 decks
9%synergy
Sword of the Animist
10%inclusion8 decks83 decks
4%synergy
Icon of Ancestry
8.4%inclusion7 decks83 decks
8%synergy
Wayfarer's Bauble
7.2%inclusion6 decks83 decks
-11%synergy
Commander's Plate
7.2%inclusion6 decks83 decks
3%synergy
Stoneforge Masterwork
6.0%inclusion5 decks83 decks
6%synergy
Urza's Incubator
6.0%inclusion5 decks83 decks
5%synergy
Enchantments
Kindred Discovery
55%inclusion46 decks83 decks
49%synergy
Reflections of Littjara
43%inclusion36 decks83 decks
40%synergy
Spreading Seas
29%inclusion24 decks83 decks
28%synergy
Mystic Remora
29%inclusion24 decks83 decks
2%synergy
Reconnaissance Mission
23%inclusion19 decks83 decks
16%synergy
Imprisoned in the Moon
22%inclusion18 decks83 decks
10%synergy
Propaganda
20%inclusion17 decks83 decks
-9%synergy
Wizard Class
18%inclusion15 decks83 decks
1%synergy
Coastal Piracy
12%inclusion10 decks83 decks
8%synergy
Back to Basics
12%inclusion10 decks83 decks
4%synergy
Intruder Alarm
11%inclusion9 decks83 decks
8%synergy
Eaten by Piranhas
11%inclusion9 decks83 decks
8%synergy
Aquatic Incursion
10%inclusion8 decks83 decks
9%synergy
Witness Protection
8.4%inclusion7 decks83 decks
3%synergy
Military Intelligence
7.2%inclusion6 decks83 decks
6%synergy
Omniscience
7.2%inclusion6 decks83 decks
-1%synergy
Sea's Claim
7.2%inclusion6 decks83 decks
7%synergy
Amphibian Downpour
7.2%inclusion6 decks83 decks
2%synergy
Leyline of Anticipation
7.2%inclusion6 decks83 decks
-2%synergy
Frogify
6.0%inclusion5 decks83 decks
4%synergy
Utility Lands
Mystic Sanctuary
64%inclusion53 decks83 decks
13%synergy
Reliquary Tower
63%inclusion52 decks83 decks
6%synergy
Nykthos, Shrine to Nyx
40%inclusion33 decks83 decks
24%synergy
Castle Vantress
34%inclusion28 decks83 decks
15%synergy
Halimar Depths
29%inclusion24 decks83 decks
19%synergy
Otawara, Soaring City
29%inclusion24 decks83 decks
4%synergy
Three Tree City
29%inclusion24 decks83 decks
25%synergy
Rogue's Passage
20%inclusion17 decks83 decks
6%synergy
Lonely Sandbar
19%inclusion16 decks83 decks
5%synergy
Mutavault
18%inclusion15 decks83 decks
17%synergy
Riptide Laboratory
14%inclusion12 decks83 decks
4%synergy
Minamo, School at Water's Edge
13%inclusion11 decks83 decks
1%synergy
Rivendell
12%inclusion10 decks83 decks
0%synergy
War Room
11%inclusion9 decks83 decks
-5%synergy
Svyelunite Temple
10%inclusion8 decks83 decks
9%synergy
Hall of Storm Giants
10%inclusion8 decks83 decks
7%synergy
Maze of Ith
7.2%inclusion6 decks83 decks
2%synergy
Coral Atoll
7.2%inclusion6 decks83 decks
3%synergy
Academy Ruins
6.0%inclusion5 decks83 decks
-12%synergy
Scavenger Grounds
6.0%inclusion5 decks83 decks
-1%synergy
Mistrise Village
5.6%inclusion4 decks72 decks
-4%synergy
Mana Artifacts
Sol Ring
84%inclusion70 decks83 decks
-1%synergy
Arcane Signet
45%inclusion37 decks83 decks
-20%synergy
Thought Vessel
45%inclusion37 decks83 decks
-7%synergy
Patchwork Banner
23%inclusion19 decks83 decks
19%synergy
Sky Diamond
18%inclusion15 decks83 decks
-6%synergy
Heraldic Banner
17%inclusion14 decks83 decks
11%synergy
Nyx Lotus
16%inclusion13 decks83 decks
11%synergy
Mind Stone
14%inclusion12 decks83 decks
-22%synergy
Caged Sun
10%inclusion8 decks83 decks
-2%synergy
Decanter of Endless Water
7.2%inclusion6 decks83 decks
-7%synergy
Gauntlet of Power
6.0%inclusion5 decks83 decks
2%synergy
Midnight Clock
6.0%inclusion5 decks83 decks
-15%synergy
Throne of Eldraine
6.0%inclusion5 decks83 decks
-4%synergy
Lands
Island
95%inclusion79 decks83 decks
2%synergy
Path of Ancestry
40%inclusion33 decks83 decks
36%synergy
Cavern of Souls
39%inclusion32 decks83 decks
34%synergy
Myriad Landscape
20%inclusion17 decks83 decks
-6%synergy
Sink into Stupor
14%inclusion12 decks83 decks
-7%synergy
Glasspool Mimic
14%inclusion12 decks83 decks
8%synergy
Sea Gate Restoration
12%inclusion10 decks83 decks
-3%synergy
Snow-Covered Island
7.2%inclusion6 decks83 decks
-1%synergy
Evolving Wilds
7.2%inclusion6 decks83 decks
3%synergy
Flooded Strand
7.2%inclusion6 decks83 decks
-1%synergy
Terramorphic Expanse
6.0%inclusion5 decks83 decks
3%synergy
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