Svyelun of Sea and Sky (Commander) - Optimized Aggro

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
100%inclusion1 decks1 decks
98%synergy
High Synergy Cards
Silvergill Adept
100%inclusion5 decks5 decks
99%synergy
Emperor Mihail II
100%inclusion5 decks5 decks
99%synergy
Tide Shaper
100%inclusion5 decks5 decks
99%synergy
Deeproot Waters
100%inclusion5 decks5 decks
99%synergy
Lord of Atlantis
100%inclusion5 decks5 decks
99%synergy
Kopala, Warden of Waves
100%inclusion5 decks5 decks
99%synergy
Vodalian Hexcatcher
100%inclusion5 decks5 decks
99%synergy
Deeproot Pilgrimage
100%inclusion5 decks5 decks
98%synergy
Merrow Reejerey
100%inclusion5 decks5 decks
98%synergy
Merfolk Sovereign
100%inclusion5 decks5 decks
98%synergy
Top Cards
Master of Waves
100%inclusion5 decks5 decks
96%synergy
Stonybrook Banneret
100%inclusion5 decks5 decks
96%synergy
Triton Shorestalker
100%inclusion5 decks5 decks
98%synergy
Harbinger of the Seas
100%inclusion5 decks5 decks
91%synergy
Master of the Pearl Trident
100%inclusion5 decks5 decks
98%synergy
Counterspell
100%inclusion5 decks5 decks
33%synergy
High Tide
100%inclusion5 decks5 decks
56%synergy
Bident of Thassa
100%inclusion5 decks5 decks
88%synergy
Sapphire Medallion
100%inclusion5 decks5 decks
43%synergy
Kindred Discovery
80%inclusion4 decks5 decks
73%synergy
Game Changers
Rhystic Study
60%inclusion3 decks5 decks
26%synergy
Thassa's Oracle
40%inclusion2 decks5 decks
27%synergy
Cyclonic Rift
40%inclusion2 decks5 decks
5%synergy
Ancient Tomb
20%inclusion1 decks5 decks
8%synergy
The One Ring
20%inclusion1 decks5 decks
7%synergy
Fierce Guardianship
20%inclusion1 decks5 decks
-3%synergy
Mystical Tutor
20%inclusion1 decks5 decks
-4%synergy
Creatures
Merrow Harbinger
80%inclusion4 decks5 decks
79%synergy
Tishana's Tidebinder
80%inclusion4 decks5 decks
75%synergy
Deepchannel Mentor
80%inclusion4 decks5 decks
79%synergy
Seahunter
80%inclusion4 decks5 decks
79%synergy
Wanderwine Prophets
80%inclusion4 decks5 decks
79%synergy
Harbinger of the Tides
80%inclusion4 decks5 decks
79%synergy
Cursecatcher
80%inclusion4 decks5 decks
78%synergy
Thieving Skydiver
80%inclusion4 decks5 decks
76%synergy
Merfolk Trickster
80%inclusion4 decks5 decks
78%synergy
Seafloor Oracle
80%inclusion4 decks5 decks
79%synergy
Coralhelm Commander
60%inclusion3 decks5 decks
59%synergy
True-Name Nemesis
60%inclusion3 decks5 decks
59%synergy
Rishadan Dockhand
60%inclusion3 decks5 decks
59%synergy
River Sneak
60%inclusion3 decks5 decks
59%synergy
Mist-Cloaked Herald
60%inclusion3 decks5 decks
58%synergy
Lullmage Mentor
60%inclusion3 decks5 decks
58%synergy
Thada Adel, Acquisitor
60%inclusion3 decks5 decks
58%synergy
Mist Dancer
60%inclusion3 decks5 decks
59%synergy
Forensic Researcher
40%inclusion2 decks5 decks
39%synergy
Mistcaller
40%inclusion2 decks5 decks
39%synergy
Tempest Caller
40%inclusion2 decks5 decks
39%synergy
Wake Thrasher
40%inclusion2 decks5 decks
39%synergy
Azami, Lady of Scrolls
20%inclusion1 decks5 decks
16%synergy
Merfolk of the Pearl Trident
20%inclusion1 decks5 decks
20%synergy
Ambassador Laquatus
20%inclusion1 decks5 decks
20%synergy
Roaming Throne
20%inclusion1 decks5 decks
16%synergy
Tideshaper Mystic
20%inclusion1 decks5 decks
20%synergy
Floodpits Drowner
20%inclusion1 decks5 decks
19%synergy
Mothdust Changeling
20%inclusion1 decks5 decks
19%synergy
Merfolk Looter
20%inclusion1 decks5 decks
18%synergy
Drift of Phantasms
20%inclusion1 decks5 decks
18%synergy
Slinn Voda, the Rising Deep
20%inclusion1 decks5 decks
19%synergy
Merfolk Assassin
20%inclusion1 decks5 decks
20%synergy
Alandra, Sky Dreamer
20%inclusion1 decks5 decks
13%synergy
Tidal Warrior
20%inclusion1 decks5 decks
19%synergy
Enduring Curiosity
20%inclusion1 decks5 decks
14%synergy
Defiler of Dreams
20%inclusion1 decks5 decks
11%synergy
Ink Dissolver
20%inclusion1 decks5 decks
20%synergy
Drowner of Secrets
20%inclusion1 decks5 decks
20%synergy
Sakashima the Impostor
20%inclusion1 decks5 decks
17%synergy
Benthic Biomancer
20%inclusion1 decks5 decks
19%synergy
Phantasmal Image
20%inclusion1 decks5 decks
14%synergy
Merfolk Windrobber
20%inclusion1 decks5 decks
19%synergy
Glasspool Mimic
20%inclusion1 decks5 decks
14%synergy
Empress Galina
20%inclusion1 decks5 decks
19%synergy
Sage of Fables
20%inclusion1 decks5 decks
19%synergy
Tidebinder Mage
20%inclusion1 decks5 decks
20%synergy
Instants
Negate
80%inclusion4 decks5 decks
42%synergy
Brainstorm
60%inclusion3 decks5 decks
19%synergy
Pongify
40%inclusion2 decks5 decks
0%synergy
Rapid Hybridization
40%inclusion2 decks5 decks
6%synergy
Transcendent Message
40%inclusion2 decks5 decks
38%synergy
An Offer You Can't Refuse
40%inclusion2 decks5 decks
4%synergy
Reality Shift
40%inclusion2 decks5 decks
12%synergy
Aetherize
40%inclusion2 decks5 decks
12%synergy
Swan Song
40%inclusion2 decks5 decks
14%synergy
Arcane Denial
40%inclusion2 decks5 decks
4%synergy
Thassa's Rebuff
40%inclusion2 decks5 decks
39%synergy
Muddle the Mixture
20%inclusion1 decks5 decks
4%synergy
Deliberate
20%inclusion1 decks5 decks
17%synergy
Stubborn Denial
20%inclusion1 decks5 decks
17%synergy
Flare of Denial
20%inclusion1 decks5 decks
13%synergy
Mindbreak Trap
20%inclusion1 decks5 decks
15%synergy
Blue Elemental Blast
20%inclusion1 decks5 decks
19%synergy
Opt
20%inclusion1 decks5 decks
-5%synergy
Mana Drain
20%inclusion1 decks5 decks
-7%synergy
Foil
20%inclusion1 decks5 decks
14%synergy
Resculpt
20%inclusion1 decks5 decks
1%synergy
Unsummon
20%inclusion1 decks5 decks
16%synergy
Archmage's Charm
20%inclusion1 decks5 decks
4%synergy
Filter Out
20%inclusion1 decks5 decks
16%synergy
Cryptic Command
20%inclusion1 decks5 decks
9%synergy
Wash Away
20%inclusion1 decks5 decks
15%synergy
Force of Negation
20%inclusion1 decks5 decks
5%synergy
Snap
20%inclusion1 decks5 decks
2%synergy
Wizard's Retort
20%inclusion1 decks5 decks
15%synergy
Memory Lapse
20%inclusion1 decks5 decks
17%synergy
Shimmering Mirage
20%inclusion1 decks5 decks
18%synergy
Spell Pierce
20%inclusion1 decks5 decks
12%synergy
Boomerang
20%inclusion1 decks5 decks
18%synergy
Sorceries
Aquitect's Will
80%inclusion4 decks5 decks
75%synergy
Distant Melody
60%inclusion3 decks5 decks
55%synergy
Raise the Palisade
60%inclusion3 decks5 decks
57%synergy
Ponder
40%inclusion2 decks5 decks
10%synergy
Windfall
20%inclusion1 decks5 decks
-3%synergy
Echo of Eons
20%inclusion1 decks5 decks
17%synergy
Fabricate
20%inclusion1 decks5 decks
-2%synergy
Sea Gate Restoration
20%inclusion1 decks5 decks
5%synergy
Serum Visions
20%inclusion1 decks5 decks
10%synergy
Temporal Manipulation
20%inclusion1 decks5 decks
16%synergy
Bribery
20%inclusion1 decks5 decks
16%synergy
Time Stretch
20%inclusion1 decks5 decks
16%synergy
Preordain
20%inclusion1 decks5 decks
-4%synergy
Spectral Deluge
20%inclusion1 decks5 decks
9%synergy
Step Through
20%inclusion1 decks5 decks
15%synergy
Time Spiral
20%inclusion1 decks5 decks
19%synergy
Utility Artifacts
Kefnet's Monument
60%inclusion3 decks5 decks
53%synergy
Herald's Horn
40%inclusion2 decks5 decks
38%synergy
Lightning Greaves
40%inclusion2 decks5 decks
14%synergy
Mindlink Mech
20%inclusion1 decks5 decks
20%synergy
Quicksilver Fountain
20%inclusion1 decks5 decks
18%synergy
Soul-Guide Lantern
20%inclusion1 decks5 decks
15%synergy
Robe of the Archmagi
20%inclusion1 decks5 decks
19%synergy
Banner of Kinship
20%inclusion1 decks5 decks
17%synergy
Vanquisher's Banner
20%inclusion1 decks5 decks
19%synergy
Door of Destinies
20%inclusion1 decks5 decks
19%synergy
Winter Moon
20%inclusion1 decks5 decks
15%synergy
Diviner's Wand
20%inclusion1 decks5 decks
19%synergy
Throne of the God-Pharaoh
20%inclusion1 decks5 decks
19%synergy
Pariah's Shield
20%inclusion1 decks5 decks
20%synergy
Aether Vial
20%inclusion1 decks5 decks
20%synergy
Enchantments
Merrow Commerce
80%inclusion4 decks5 decks
79%synergy
Reflections of Littjara
80%inclusion4 decks5 decks
77%synergy
Spreading Seas
60%inclusion3 decks5 decks
59%synergy
Counterbalance
20%inclusion1 decks5 decks
16%synergy
Reconnaissance Mission
20%inclusion1 decks5 decks
13%synergy
Imprisoned in the Moon
20%inclusion1 decks5 decks
8%synergy
Unstoppable Plan
20%inclusion1 decks5 decks
13%synergy
Mystic Remora
20%inclusion1 decks5 decks
-7%synergy
Retreat to Coralhelm
20%inclusion1 decks5 decks
17%synergy
Planeswalkers
Tamiyo, the Moon Sage
20%inclusion1 decks5 decks
18%synergy
Utility Lands
Mystic Sanctuary
100%inclusion5 decks5 decks
49%synergy
Castle Vantress
60%inclusion3 decks5 decks
41%synergy
Svyelunite Temple
40%inclusion2 decks5 decks
39%synergy
Mutavault
40%inclusion2 decks5 decks
39%synergy
Nykthos, Shrine to Nyx
40%inclusion2 decks5 decks
24%synergy
Reliquary Tower
40%inclusion2 decks5 decks
-16%synergy
Three Tree City
40%inclusion2 decks5 decks
37%synergy
Otawara, Soaring City
40%inclusion2 decks5 decks
15%synergy
Minamo, School at Water's Edge
20%inclusion1 decks5 decks
8%synergy
Remote Isle
20%inclusion1 decks5 decks
15%synergy
Rivendell
20%inclusion1 decks5 decks
8%synergy
Halimar Depths
20%inclusion1 decks5 decks
10%synergy
Riptide Laboratory
20%inclusion1 decks5 decks
10%synergy
Desert of the Mindful
20%inclusion1 decks5 decks
16%synergy
Lonely Sandbar
20%inclusion1 decks5 decks
6%synergy
Saprazzan Skerry
20%inclusion1 decks5 decks
17%synergy
Mana Artifacts
Sol Ring
100%inclusion5 decks5 decks
15%synergy
Arcane Signet
60%inclusion3 decks5 decks
-5%synergy
Thought Vessel
40%inclusion2 decks5 decks
-12%synergy
Sky Diamond
20%inclusion1 decks5 decks
-4%synergy
Patchwork Banner
20%inclusion1 decks5 decks
17%synergy
Fellwar Stone
20%inclusion1 decks5 decks
0%synergy
Springleaf Drum
20%inclusion1 decks5 decks
17%synergy
Nyx Lotus
20%inclusion1 decks5 decks
16%synergy
Lands
Island
100%inclusion5 decks5 decks
7%synergy
Path of Ancestry
60%inclusion3 decks5 decks
56%synergy
Myriad Landscape
20%inclusion1 decks5 decks
-6%synergy
Sea Gate Restoration
20%inclusion1 decks5 decks
5%synergy
Cavern of Souls
20%inclusion1 decks5 decks
15%synergy
Glasspool Mimic
20%inclusion1 decks5 decks
14%synergy
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