Svyelun of Sea and Sky (Commander) - Upgraded

Svyelun of Sea and Sky
Rank #1,179
87decks
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Landon Crispens
Feb 16, 2026
Landon Crispens
Attuma, Atlantean Warlord Commander Deck Tech
Is Attuma, Atlantean Warlord the new best mono-blue Merfolk commander? Come check out this Marvel villain's potential.
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Top Cards
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Creatures
Instants
Sorceries
Utility Artifacts
Enchantments
Utility Lands
Mana Artifacts
Lands
Back to Top
Harmonized Trio
27%inclusion3 decks11 decks
24%synergy
Attuma, Atlantean Warlord
14%inclusion5 decks36 decks
13%synergy
Mana Sculpt
9.1%inclusion1 decks11 decks
6%synergy
Namor the Sub-Mariner
8.3%inclusion3 decks36 decks
8%synergy
High Synergy Cards
Master of the Pearl Trident
92%inclusion80 decks87 decks
90%synergy
Merrow Reejerey
90%inclusion78 decks87 decks
88%synergy
Merfolk Sovereign
90%inclusion78 decks87 decks
88%synergy
Seafloor Oracle
85%inclusion74 decks87 decks
84%synergy
Emperor Mihail II
84%inclusion73 decks87 decks
83%synergy
Kopala, Warden of Waves
84%inclusion73 decks87 decks
82%synergy
Stonybrook Banneret
85%inclusion74 decks87 decks
82%synergy
Vodalian Hexcatcher
83%inclusion72 decks87 decks
81%synergy
Lord of Atlantis
79%inclusion69 decks87 decks
78%synergy
Deeproot Pilgrimage
75%inclusion65 decks87 decks
73%synergy
Top Cards
Counterspell
75%inclusion65 decks87 decks
9%synergy
Thieving Skydiver
72%inclusion63 decks87 decks
68%synergy
Deeproot Waters
70%inclusion61 decks87 decks
69%synergy
Sapphire Medallion
70%inclusion61 decks87 decks
11%synergy
Bident of Thassa
70%inclusion61 decks87 decks
58%synergy
Tide Shaper
62%inclusion54 decks87 decks
61%synergy
Merrow Commerce
61%inclusion53 decks87 decks
60%synergy
Merfolk Trickster
61%inclusion53 decks87 decks
59%synergy
Tishana's Tidebinder
59%inclusion51 decks87 decks
54%synergy
Mist Dancer
59%inclusion51 decks87 decks
58%synergy
Game Changers
Cyclonic Rift
31%inclusion27 decks87 decks
-2%synergy
Rhystic Study
30%inclusion26 decks87 decks
-2%synergy
Thassa's Oracle
25%inclusion22 decks87 decks
13%synergy
Fierce Guardianship
20%inclusion17 decks87 decks
-3%synergy
Force of Will
15%inclusion13 decks87 decks
-2%synergy
Mystical Tutor
8.0%inclusion7 decks87 decks
-14%synergy
Creatures
Merrow Harbinger
57%inclusion50 decks87 decks
56%synergy
Lullmage Mentor
57%inclusion50 decks87 decks
56%synergy
Harbinger of the Tides
56%inclusion49 decks87 decks
55%synergy
Silvergill Adept
54%inclusion47 decks87 decks
53%synergy
Coralhelm Commander
53%inclusion46 decks87 decks
52%synergy
Thada Adel, Acquisitor
49%inclusion43 decks87 decks
48%synergy
Deepchannel Mentor
47%inclusion41 decks87 decks
46%synergy
Triton Shorestalker
45%inclusion39 decks87 decks
42%synergy
Master of Waves
44%inclusion38 decks87 decks
40%synergy
Wanderwine Prophets
43%inclusion37 decks87 decks
42%synergy
Seahunter
43%inclusion37 decks87 decks
42%synergy
Mist-Cloaked Herald
41%inclusion36 decks87 decks
39%synergy
Harbinger of the Seas
41%inclusion36 decks87 decks
33%synergy
True-Name Nemesis
39%inclusion34 decks87 decks
38%synergy
Summon: Leviathan
38%inclusion26 decks69 decks
36%synergy
Tempest Caller
37%inclusion32 decks87 decks
36%synergy
Mindspring Merfolk
34%inclusion29 decks85 decks
33%synergy
Wake Thrasher
32%inclusion28 decks87 decks
32%synergy
Streambed Aquitects
31%inclusion27 decks87 decks
31%synergy
Floodpits Drowner
30%inclusion26 decks86 decks
29%synergy
River Sneak
30%inclusion26 decks87 decks
29%synergy
Rishadan Dockhand
30%inclusion26 decks87 decks
29%synergy
Disruptor of Currents
29%inclusion10 decks34 decks
29%synergy
Thassa, God of the Sea
28%inclusion24 decks87 decks
24%synergy
Sea Scryer
28%inclusion24 decks87 decks
27%synergy
Cosi's Trickster
26%inclusion23 decks87 decks
26%synergy
Cursecatcher
26%inclusion23 decks87 decks
25%synergy
Kiora, the Rising Tide
26%inclusion22 decks86 decks
23%synergy
Mistcaller
25%inclusion22 decks87 decks
24%synergy
Silvergill Mentor
24%inclusion8 decks34 decks
23%synergy
Surgespanner
23%inclusion20 decks87 decks
22%synergy
Merfolk Looter
23%inclusion20 decks87 decks
21%synergy
Tidal Warrior
22%inclusion19 decks87 decks
21%synergy
Champions of the Shoal
21%inclusion7 decks33 decks
21%synergy
Alandra, Sky Dreamer
21%inclusion18 decks87 decks
14%synergy
Talrand, Sky Summoner
21%inclusion18 decks87 decks
7%synergy
Empress Galina
21%inclusion18 decks87 decks
20%synergy
Stormtide Leviathan
20%inclusion17 decks87 decks
13%synergy
Glasspool Mimic
18%inclusion16 decks87 decks
12%synergy
Metallic Mimic
17%inclusion15 decks87 decks
16%synergy
Merfolk Windrobber
17%inclusion15 decks87 decks
16%synergy
Sigil Tracer
16%inclusion14 decks87 decks
15%synergy
Roaming Throne
15%inclusion13 decks87 decks
11%synergy
Reef Shaman
15%inclusion13 decks87 decks
15%synergy
Forensic Researcher
15%inclusion13 decks87 decks
14%synergy
Enduring Curiosity
15%inclusion13 decks87 decks
9%synergy
Enclave Cryptologist
15%inclusion13 decks87 decks
14%synergy
Fallowsage
14%inclusion12 decks87 decks
13%synergy
Benthic Biomancer
14%inclusion12 decks87 decks
13%synergy
Tideshaper Mystic
11%inclusion10 decks87 decks
11%synergy
Instants
Pongify
47%inclusion41 decks87 decks
7%synergy
High Tide
47%inclusion41 decks87 decks
3%synergy
Rapid Hybridization
45%inclusion39 decks87 decks
10%synergy
Negate
45%inclusion39 decks87 decks
7%synergy
An Offer You Can't Refuse
33%inclusion29 decks87 decks
-4%synergy
Brainstorm
33%inclusion29 decks87 decks
-8%synergy
Aetherize
31%inclusion27 decks87 decks
1%synergy
Resculpt
30%inclusion26 decks87 decks
12%synergy
Arcane Denial
30%inclusion26 decks87 decks
-6%synergy
Harmonized Crescendo
29%inclusion10 decks34 decks
26%synergy
Swan Song
28%inclusion24 decks87 decks
1%synergy
Reality Shift
28%inclusion24 decks87 decks
1%synergy
Sink into Stupor
28%inclusion24 decks87 decks
6%synergy
Flare of Denial
23%inclusion20 decks87 decks
16%synergy
Thassa's Rebuff
20%inclusion17 decks87 decks
18%synergy
Filter Out
18%inclusion16 decks87 decks
15%synergy
Mana Drain
17%inclusion15 decks87 decks
-10%synergy
Archmage's Charm
17%inclusion15 decks87 decks
0%synergy
Flow of Knowledge
17%inclusion15 decks87 decks
2%synergy
Cryptic Command
15%inclusion13 decks87 decks
3%synergy
Opt
15%inclusion13 decks87 decks
-10%synergy
March of Swirling Mist
15%inclusion13 decks87 decks
7%synergy
Strix Serenade
14%inclusion12 decks87 decks
5%synergy
Frantic Search
13%inclusion11 decks87 decks
-18%synergy
Disallow
13%inclusion11 decks87 decks
6%synergy
Spell Pierce
11%inclusion10 decks87 decks
3%synergy
Wash Away
11%inclusion10 decks87 decks
7%synergy
Force of Negation
10%inclusion9 decks87 decks
-5%synergy
Aetherspouts
8.0%inclusion7 decks87 decks
1%synergy
Foil
8.0%inclusion7 decks87 decks
2%synergy
Engulf the Shore
8.0%inclusion7 decks87 decks
0%synergy
Saw It Coming
8.0%inclusion7 decks87 decks
5%synergy
Snap
8.0%inclusion7 decks87 decks
-11%synergy
Muddle the Mixture
6.9%inclusion6 decks87 decks
-8%synergy
Three Steps Ahead
6.9%inclusion6 decks87 decks
-3%synergy
Into the Flood Maw
6.9%inclusion6 decks87 decks
1%synergy
Thassa's Intervention
6.9%inclusion6 decks87 decks
6%synergy
Mystic Confluence
6.9%inclusion6 decks87 decks
-2%synergy
Consider
5.7%inclusion5 decks87 decks
-9%synergy
Dispel
5.7%inclusion5 decks87 decks
-3%synergy
Mystic Reflection
5.7%inclusion5 decks87 decks
4%synergy
Jwari Disruption
5.7%inclusion5 decks87 decks
1%synergy
Wizard's Retort
5.7%inclusion5 decks87 decks
1%synergy
Misdirection
5.7%inclusion5 decks87 decks
1%synergy
Dramatic Reversal
5.7%inclusion5 decks87 decks
-14%synergy
Slip Out the Back
5.7%inclusion5 decks87 decks
-2%synergy
Pull from Tomorrow
5.7%inclusion5 decks87 decks
-4%synergy
Narset's Reversal
5.7%inclusion5 decks87 decks
-7%synergy
Sorceries
Aquitect's Will
47%inclusion41 decks87 decks
42%synergy
Distant Melody
45%inclusion39 decks87 decks
40%synergy
Raise the Palisade
32%inclusion28 decks87 decks
29%synergy
Ponder
28%inclusion24 decks87 decks
-2%synergy
Spectral Deluge
25%inclusion22 decks87 decks
15%synergy
Preordain
22%inclusion19 decks87 decks
-2%synergy
Rite of Replication
16%inclusion14 decks87 decks
9%synergy
Sea Gate Restoration
15%inclusion13 decks87 decks
0%synergy
Ravenform
15%inclusion13 decks87 decks
6%synergy
Crashing Tide
11%inclusion10 decks87 decks
11%synergy
Curse of the Swine
10%inclusion9 decks87 decks
-1%synergy
Chart a Course
9.2%inclusion8 decks87 decks
5%synergy
Step Through
9.2%inclusion8 decks87 decks
4%synergy
Windfall
8.0%inclusion7 decks87 decks
-14%synergy
Inundate
6.9%inclusion6 decks87 decks
5%synergy
Wash Out
6.9%inclusion6 decks87 decks
2%synergy
River's Rebuke
6.9%inclusion6 decks87 decks
3%synergy
Consuming Tide
5.7%inclusion5 decks87 decks
2%synergy
Serum Visions
5.7%inclusion5 decks87 decks
-4%synergy
Lórien Revealed
5.7%inclusion5 decks87 decks
-3%synergy
Retraced Image
5.7%inclusion5 decks87 decks
3%synergy
Flow of Ideas
5.7%inclusion5 decks87 decks
1%synergy
Utility Artifacts
Herald's Horn
33%inclusion29 decks87 decks
32%synergy
Kefnet's Monument
25%inclusion22 decks87 decks
19%synergy
Vanquisher's Banner
24%inclusion21 decks87 decks
23%synergy
Lightning Greaves
23%inclusion20 decks87 decks
-3%synergy
Quicksilver Fountain
20%inclusion17 decks87 decks
18%synergy
Chronicle of Victory
18%inclusion6 decks34 decks
17%synergy
Aether Vial
16%inclusion14 decks87 decks
16%synergy
Wayfarer's Bauble
15%inclusion13 decks87 decks
-3%synergy
Door of Destinies
15%inclusion13 decks87 decks
14%synergy
Banner of Kinship
14%inclusion12 decks86 decks
11%synergy
Coat of Arms
14%inclusion12 decks87 decks
12%synergy
Swiftfoot Boots
11%inclusion10 decks87 decks
-17%synergy
Sword of the Animist
9.2%inclusion8 decks87 decks
4%synergy
Icon of Ancestry
8.0%inclusion7 decks87 decks
8%synergy
The Indomitable
8.0%inclusion7 decks87 decks
6%synergy
Waterbending Scroll
7.1%inclusion3 decks42 decks
-1%synergy
Urza's Incubator
6.9%inclusion6 decks87 decks
6%synergy
Vedalken Shackles
5.7%inclusion5 decks87 decks
3%synergy
Enchantments
Kindred Discovery
57%inclusion50 decks87 decks
51%synergy
Reflections of Littjara
44%inclusion38 decks87 decks
40%synergy
Spreading Seas
43%inclusion37 decks87 decks
41%synergy
Mystic Remora
26%inclusion23 decks87 decks
0%synergy
Reconnaissance Mission
23%inclusion20 decks87 decks
16%synergy
Coastal Piracy
22%inclusion19 decks87 decks
17%synergy
Imprisoned in the Moon
17%inclusion15 decks87 decks
5%synergy
Wizard Class
16%inclusion14 decks87 decks
-1%synergy
Curiosity
14%inclusion12 decks87 decks
11%synergy
Propaganda
14%inclusion12 decks87 decks
-17%synergy
Intruder Alarm
11%inclusion10 decks87 decks
9%synergy
Military Intelligence
10%inclusion9 decks87 decks
9%synergy
Aquatic Incursion
9.2%inclusion8 decks87 decks
9%synergy
Leyline of Anticipation
8.0%inclusion7 decks87 decks
-1%synergy
Sea's Claim
8.0%inclusion7 decks87 decks
8%synergy
Back to Basics
6.9%inclusion6 decks87 decks
0%synergy
Eaten by Piranhas
6.9%inclusion6 decks87 decks
4%synergy
Combat Research
6.9%inclusion6 decks87 decks
5%synergy
Teferi's Ageless Insight
5.7%inclusion5 decks87 decks
-11%synergy
Utility Lands
Mystic Sanctuary
60%inclusion52 decks87 decks
10%synergy
Reliquary Tower
57%inclusion50 decks87 decks
1%synergy
Nykthos, Shrine to Nyx
34%inclusion30 decks87 decks
18%synergy
Castle Vantress
30%inclusion26 decks87 decks
12%synergy
Otawara, Soaring City
28%inclusion24 decks87 decks
2%synergy
Three Tree City
24%inclusion21 decks87 decks
21%synergy
Mutavault
23%inclusion20 decks87 decks
22%synergy
Rogue's Passage
23%inclusion20 decks87 decks
8%synergy
Lonely Sandbar
21%inclusion18 decks87 decks
7%synergy
Halimar Depths
20%inclusion17 decks87 decks
10%synergy
Scavenger Grounds
17%inclusion15 decks87 decks
10%synergy
Minamo, School at Water's Edge
15%inclusion13 decks87 decks
2%synergy
Rivendell
13%inclusion11 decks87 decks
2%synergy
Riptide Laboratory
13%inclusion11 decks87 decks
3%synergy
War Room
11%inclusion10 decks87 decks
-4%synergy
Temple of the False God
10%inclusion9 decks87 decks
0%synergy
Ghost Quarter
8.0%inclusion7 decks87 decks
6%synergy
Coral Atoll
8.0%inclusion7 decks87 decks
5%synergy
Academy Ruins
8.0%inclusion7 decks87 decks
-11%synergy
Cephalid Coliseum
8.0%inclusion7 decks87 decks
-1%synergy
Agna Qel'a
7.1%inclusion3 decks42 decks
0%synergy
Hall of Storm Giants
5.7%inclusion5 decks87 decks
3%synergy
Remote Isle
5.7%inclusion5 decks87 decks
1%synergy
Terrain Generator
5.7%inclusion5 decks87 decks
-2%synergy
Archway of Innovation
5.7%inclusion5 decks87 decks
-5%synergy
Mana Artifacts
Sol Ring
80%inclusion70 decks87 decks
-5%synergy
Arcane Signet
67%inclusion58 decks87 decks
2%synergy
Thought Vessel
39%inclusion34 decks87 decks
-13%synergy
Patchwork Banner
31%inclusion27 decks87 decks
28%synergy
Heraldic Banner
24%inclusion21 decks87 decks
19%synergy
Mind Stone
22%inclusion19 decks87 decks
-13%synergy
Caged Sun
20%inclusion17 decks87 decks
9%synergy
Sky Diamond
17%inclusion15 decks87 decks
-5%synergy
Fellwar Stone
14%inclusion12 decks87 decks
-6%synergy
Midnight Clock
13%inclusion11 decks87 decks
-7%synergy
Springleaf Drum
9.2%inclusion8 decks87 decks
6%synergy
Nyx Lotus
9.2%inclusion8 decks87 decks
5%synergy
Commander's Sphere
8.0%inclusion7 decks87 decks
-1%synergy
Decanter of Endless Water
6.9%inclusion6 decks87 decks
-7%synergy
Gauntlet of Power
5.7%inclusion5 decks87 decks
2%synergy
Gilded Lotus
5.7%inclusion5 decks87 decks
-5%synergy
Throne of Eldraine
5.7%inclusion5 decks87 decks
-3%synergy
Bender's Waterskin
5.4%inclusion3 decks56 decks
-5%synergy
Lands
Island
95%inclusion83 decks87 decks
2%synergy
Path of Ancestry
39%inclusion34 decks87 decks
35%synergy
Sink into Stupor
28%inclusion24 decks87 decks
6%synergy
Cavern of Souls
26%inclusion23 decks87 decks
22%synergy
Myriad Landscape
23%inclusion20 decks87 decks
-3%synergy
Glasspool Mimic
18%inclusion16 decks87 decks
12%synergy
Sea Gate Restoration
15%inclusion13 decks87 decks
0%synergy
Umara Wizard
8.0%inclusion7 decks87 decks
8%synergy
Polluted Delta
8.0%inclusion7 decks87 decks
0%synergy
Flooded Strand
8.0%inclusion7 decks87 decks
0%synergy
Misty Rainforest
6.9%inclusion6 decks87 decks
-1%synergy
Hydroelectric Specimen
6.9%inclusion6 decks87 decks
-7%synergy
Scalding Tarn
6.9%inclusion6 decks87 decks
-1%synergy
Snow-Covered Island
5.7%inclusion5 decks87 decks
-2%synergy
Jwari Disruption
5.7%inclusion5 decks87 decks
1%synergy
Evolving Wilds
5.7%inclusion5 decks87 decks
2%synergy
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