Underground Sea (Card)
Underground Sea
In 191134 decks
14% of 1342156 decks
Mar 2, 2025
"Eternal Might" Precon Transformation | EDH to Canadian Highlander
CanLander might not have precons, but did you know you can transform a Commander precon into a legal CanLander deck with just a few changes?
Nov 29, 2024
Foundations: How to Build Mana Bases
Don't know where to start with your mana base? Take a look at our guide!
New Commanders
Hashaton, Scarab's Fist
31.52% of 8505 decks
2681 decks
Top Commanders
Kraum, Ludevic's Opus // Tymna the Weaver
80.36% of 6900 decks
5545 decks
Yuriko, the Tiger's Shadow
21.34% of 24883 decks
5309 decks
Thrasios, Triton Hero // Tymna the Weaver
71.60% of 6770 decks
4847 decks
Kenrith, the Returned King
20.99% of 23015 decks
4831 decks
Sisay, Weatherlight Captain
34.01% of 12841 decks
4367 decks
Atraxa, Praetors' Voice
11.41% of 35754 decks
4081 decks
Tivit, Seller of Secrets
32.87% of 12069 decks
3967 decks
Atraxa, Grand Unifier
25.90% of 14883 decks
3854 decks
Najeela, the Blade-Blossom
34.64% of 11075 decks
3836 decks
The Ur-Dragon
11.44% of 30189 decks
3454 decks
Rograkh, Son of Rohgahh // Silas Renn, Seeker Adept
78.87% of 4123 decks
3252 decks
Nekusar, the Mindrazer
15.75% of 20213 decks
3183 decks
Talion, the Kindly Lord
39.72% of 7625 decks
3029 decks
Sauron, the Dark Lord
11.13% of 25018 decks
2785 decks
Esika, God of the Tree
14.23% of 19031 decks
2709 decks
Zur the Enchanter
21.62% of 11667 decks
2522 decks
Muldrotha, the Gravetide
13.31% of 16752 decks
2229 decks
New Cards
Renewed Solidarity
4% of 15978 decks
+1% synergy
Bleachbone Verge
3% of 16356 decks
-3% synergy
On Wings of Gold
3% of 15978 decks
+1% synergy
Rhet-Tomb Mystic
2% of 28281 decks
+0% synergy
Hashaton, Scarab's Fist
2% of 16356 decks
-2% synergy
High Synergy Cards
Esper Sentinel
56% of 98729 decks
+36% synergy
Lotus Petal
41% of 191327 decks
+35% synergy
Silence
41% of 98729 decks
+35% synergy
Mystic Remora
51% of 191322 decks
+34% synergy
Birds of Paradise
60% of 81797 decks
+33% synergy
Otawara, Soaring City
49% of 191322 decks
+32% synergy
Boseiju, Who Endures
51% of 81797 decks
+32% synergy
Swan Song
48% of 191322 decks
+32% synergy
Deflecting Swat
48% of 88771 decks
+31% synergy
Imperial Seal
37% of 191320 decks
+31% synergy
Top Cards
Swords to Plowshares
65% of 98729 decks
+2% synergy
Smothering Tithe
52% of 98729 decks
+28% synergy
Dark Ritual
42% of 191320 decks
+19% synergy
Noble Hierarch
40% of 55799 decks
+24% synergy
Orcish Bowmasters
40% of 176630 decks
+30% synergy
Mystical Tutor
40% of 191322 decks
+25% synergy
Mana Drain
39% of 191322 decks
+24% synergy
An Offer You Can't Refuse
39% of 191322 decks
+18% synergy
Force of Negation
39% of 191322 decks
+30% synergy
Thassa's Oracle
38% of 191322 decks
+31% synergy
Game Changers
Rhystic Study
70% of 191322 decks
+43% synergy
Demonic Tutor
68% of 191320 decks
+47% synergy
Vampiric Tutor
62% of 191320 decks
+45% synergy
Cyclonic Rift
60% of 191322 decks
+33% synergy
Fierce Guardianship
57% of 191322 decks
+39% synergy
Enlightened Tutor
55% of 98729 decks
+38% synergy
Ancient Tomb
51% of 191327 decks
+40% synergy
Force of Will
49% of 191322 decks
+38% synergy
Chrome Mox
45% of 191327 decks
+39% synergy
Mox Diamond
42% of 191327 decks
+37% synergy
Creatures
Grand Abolisher
37% of 98729 decks
+27% synergy
Dockside Extortionist
36% of 88771 decks
+27% synergy
Deathrite Shaman
35% of 81793 decks
+24% synergy
Ragavan, Nimble Pilferer
35% of 88771 decks
+27% synergy
Lotho, Corrupt Shirriff
34% of 90608 decks
+22% synergy
Ignoble Hierarch
34% of 45911 decks
+9% synergy
Delighted Halfling
32% of 76736 decks
+21% synergy
Ranger-Captain of Eos
32% of 98729 decks
+28% synergy
Bloom Tender
32% of 81797 decks
+24% synergy
Opposition Agent
32% of 191320 decks
+25% synergy
Drannith Magistrate
30% of 98729 decks
+24% synergy
Simian Spirit Guide
25% of 88771 decks
+20% synergy
Faeburrow Elder
23% of 55800 decks
+12% synergy
Dauthi Voidwalker
21% of 191320 decks
+14% synergy
Elvish Spirit Guide
19% of 81797 decks
+15% synergy
Kutzil, Malamet Exemplar
18% of 42393 decks
+4% synergy
Kinnan, Bonder Prodigy
18% of 81793 decks
+13% synergy
Seedborn Muse
17% of 81797 decks
+9% synergy
Eternal Witness
17% of 81797 decks
-3% synergy
Archivist of Oghma
17% of 98729 decks
+11% synergy
Phyrexian Metamorph
16% of 191322 decks
+9% synergy
Derevi, Empyrial Tactician
16% of 55799 decks
+12% synergy
Talion, the Kindly Lord
14% of 165051 decks
+10% synergy
Valley Floodcaller
14% of 92458 decks
+11% synergy
Pollywog Prodigy
14% of 90939 decks
+9% synergy
Elves of Deep Shadow
14% of 81793 decks
+3% synergy
Mockingbird
14% of 91762 decks
+10% synergy
Faerie Mastermind
14% of 191322 decks
+8% synergy
Morophon, the Boundless
13% of 42470 decks
-1% synergy
Emiel the Blessed
13% of 55800 decks
+10% synergy
Phantasmal Image
13% of 191322 decks
+9% synergy
Roaming Throne
12% of 149755 decks
+5% synergy
Displacer Kitten
12% of 191322 decks
+7% synergy
Gilded Drake
11% of 191322 decks
+9% synergy
Sheoldred, the Apocalypse
11% of 191320 decks
+6% synergy
Notion Thief
11% of 191316 decks
+4% synergy
Dryad of the Ilysian Grove
10% of 81797 decks
+2% synergy
Esika, God of the Tree
10% of 42470 decks
+3% synergy
Enduring Vitality
10% of 31477 decks
+3% synergy
Baleful Strix
9% of 191316 decks
-4% synergy
Tinder Wall
9% of 45912 decks
+6% synergy
Llanowar Elves
9% of 81797 decks
-12% synergy
Avacyn's Pilgrim
9% of 55800 decks
-5% synergy
Hullbreaker Horror
9% of 191322 decks
+2% synergy
Ledger Shredder
9% of 191322 decks
+5% synergy
Birgi, God of Storytelling
8% of 88771 decks
+3% synergy
Miirym, Sentinel Wyrm
8% of 45911 decks
+2% synergy
Spellseeker
8% of 191322 decks
+4% synergy
Delney, Streetwise Lookout
8% of 69650 decks
+4% synergy
Selvala, Heart of the Wilds
7% of 81797 decks
+2% synergy
Instants
Worldly Tutor
38% of 81797 decks
+24% synergy
Flusterstorm
37% of 191322 decks
+30% synergy
Tainted Pact
35% of 191320 decks
+31% synergy
Mental Misstep
35% of 191322 decks
+29% synergy
Demonic Consultation
35% of 191320 decks
+31% synergy
Pact of Negation
34% of 191322 decks
+27% synergy
Deadly Rollick
30% of 191320 decks
+19% synergy
Assassin's Trophy
29% of 81793 decks
-1% synergy
Path to Exile
28% of 98729 decks
-18% synergy
Abrupt Decay
28% of 81793 decks
+18% synergy
Mindbreak Trap
28% of 191322 decks
+24% synergy
Teferi's Protection
26% of 98729 decks
+6% synergy
Counterspell
25% of 191322 decks
-17% synergy
Veil of Summer
23% of 81797 decks
+17% synergy
Chain of Vapor
22% of 191322 decks
+18% synergy
Heroic Intervention
20% of 81797 decks
-9% synergy
Eladamri's Call
20% of 55800 decks
+10% synergy
Red Elemental Blast
20% of 88771 decks
+14% synergy
Brainstorm
19% of 191322 decks
-1% synergy
Final Fortune
18% of 88771 decks
+16% synergy
Cabal Ritual
17% of 191320 decks
+12% synergy
Ad Nauseam
17% of 191320 decks
+14% synergy
Pyroblast
16% of 88771 decks
+10% synergy
Borne Upon a Wind
16% of 176632 decks
+13% synergy
Noxious Revival
15% of 81797 decks
+10% synergy
Brain Freeze
15% of 191322 decks
+12% synergy
Crop Rotation
15% of 81797 decks
+5% synergy
Dovin's Veto
14% of 98728 decks
-4% synergy
Sink into Stupor
13% of 105067 decks
+4% synergy
Entomb
13% of 191320 decks
+5% synergy
Anguished Unmaking
12% of 98727 decks
-12% synergy
Intuition
12% of 191322 decks
+10% synergy
Arcane Denial
12% of 191322 decks
-8% synergy
Culling the Weak
11% of 191320 decks
+8% synergy
Dispel
11% of 191322 decks
+7% synergy
Beast Within
11% of 81797 decks
-26% synergy
Chaos Warp
11% of 88771 decks
-21% synergy
Chord of Calling
11% of 81797 decks
+5% synergy
Into the Flood Maw
10% of 92458 decks
+7% synergy
Snap
10% of 191322 decks
+3% synergy
Lim-Dûl's Vault
9% of 191316 decks
+6% synergy
Void Rend
9% of 98726 decks
-5% synergy
Strix Serenade
9% of 105067 decks
+4% synergy
Negate
8% of 191322 decks
-15% synergy
Fell the Profane
8% of 105065 decks
-1% synergy
Flare of Duplication
7% of 47481 decks
+5% synergy
Frantic Search
7% of 191322 decks
-6% synergy
Muddle the Mixture
7% of 191322 decks
+2% synergy
Fire Covenant
7% of 88769 decks
+4% synergy
Terminate
7% of 88769 decks
-14% synergy
Sorceries
Toxic Deluge
30% of 191320 decks
+13% synergy
Wheel of Fortune
30% of 88771 decks
+25% synergy
Farseek
30% of 81797 decks
-4% synergy
Gamble
29% of 88771 decks
+19% synergy
Nature's Lore
28% of 81797 decks
-4% synergy
Three Visits
27% of 81797 decks
+3% synergy
Reanimate
24% of 191320 decks
+7% synergy
Finale of Devastation
23% of 81797 decks
+15% synergy
Culling Ritual
22% of 81793 decks
+11% synergy
Eldritch Evolution
22% of 81797 decks
+17% synergy
Sevinne's Reclamation
21% of 98729 decks
+14% synergy
Windfall
21% of 191322 decks
+8% synergy
Jeska's Will
21% of 88771 decks
+4% synergy
Diabolic Intent
19% of 191320 decks
+11% synergy
Rite of Flame
19% of 88771 decks
+16% synergy
Neoform
16% of 81793 decks
+11% synergy
Mnemonic Betrayal
16% of 191316 decks
+13% synergy
Blasphemous Act
16% of 88771 decks
-17% synergy
Cultivate
14% of 81797 decks
-31% synergy
Beseech the Mirror
12% of 163589 decks
+9% synergy
Gitaxian Probe
11% of 191322 decks
+6% synergy
Praetor's Grasp
11% of 191320 decks
+9% synergy
Damn
11% of 98727 decks
-6% synergy
Farewell
10% of 98729 decks
-3% synergy
Skyshroud Claim
9% of 81797 decks
+1% synergy
Kodama's Reach
9% of 81797 decks
-21% synergy
Ponder
9% of 191322 decks
-4% synergy
Damnation
9% of 191320 decks
+1% synergy
Feed the Swarm
9% of 191320 decks
-9% synergy
Supreme Verdict
9% of 98728 decks
-5% synergy
Timetwister
8% of 191322 decks
+7% synergy
Rampant Growth
8% of 81797 decks
-26% synergy
Yawgmoth's Will
8% of 191320 decks
+7% synergy
Vandalblast
8% of 88771 decks
-8% synergy
Grim Tutor
7% of 191320 decks
+3% synergy
Eerie Ultimatum
7% of 55799 decks
-5% synergy
Sea Gate Restoration
7% of 191322 decks
+2% synergy
Green Sun's Zenith
6% of 81797 decks
+1% synergy
Ruinous Ultimatum
6% of 51769 decks
-12% synergy
Faithless Looting
6% of 88771 decks
-11% synergy
Preordain
5% of 191322 decks
-5% synergy
Blasphemous Edict
5% of 54871 decks
-3% synergy
Utility Artifacts
The One Ring
35% of 189616 decks
+27% synergy
Wishclaw Talisman
27% of 191320 decks
+21% synergy
Jeweled Lotus
22% of 191327 decks
+17% synergy
Lightning Greaves
21% of 191327 decks
-4% synergy
Lion's Eye Diamond
18% of 191327 decks
+16% synergy
Sensei's Divining Top
12% of 191327 decks
+7% synergy
Swiftfoot Boots
12% of 191327 decks
-16% synergy
The Great Henge
10% of 81797 decks
-0% synergy
Bolas's Citadel
6% of 191320 decks
-2% synergy
Commander's Sphere
6% of 191327 decks
-9% synergy
Skullclamp
6% of 191327 decks
-6% synergy
Fist of Suns
6% of 42470 decks
-1% synergy
Mind Stone
6% of 191327 decks
-11% synergy
Grafdigger's Cage
6% of 191327 decks
+4% synergy
Agatha's Soul Cauldron
5% of 163596 decks
+4% synergy
Isochron Scepter
5% of 191327 decks
+3% synergy
Herald's Horn
5% of 191327 decks
-1% synergy
Cursed Totem
5% of 191327 decks
+4% synergy
Ashnod's Altar
5% of 191327 decks
-2% synergy
Enchantments
Underworld Breach
34% of 88771 decks
+28% synergy
Sylvan Library
22% of 81797 decks
+11% synergy
Carpet of Flowers
17% of 81797 decks
+14% synergy
Necropotence
16% of 191320 decks
+10% synergy
Leyline of the Guildpact
14% of 28667 decks
-2% synergy
Animate Dead
12% of 191320 decks
+2% synergy
Blind Obedience
11% of 98729 decks
+4% synergy
Black Market Connections
10% of 191320 decks
-1% synergy
Rhythm of the Wild
9% of 45912 decks
-14% synergy
Temur Ascendancy
9% of 45911 decks
-5% synergy
Survival of the Fittest
9% of 81797 decks
+7% synergy
Exploration
9% of 81797 decks
+0% synergy
Doubling Season
8% of 81797 decks
-1% synergy
Propaganda
8% of 191322 decks
-4% synergy
Mirari's Wake
8% of 55800 decks
-5% synergy
Touch the Spirit Realm
8% of 98729 decks
+6% synergy
Ghostly Prison
8% of 98729 decks
-3% synergy
Trouble in Pairs
8% of 68853 decks
+3% synergy
Dress Down
7% of 191322 decks
+6% synergy
Wild Growth
7% of 81797 decks
-4% synergy
Food Chain
7% of 81797 decks
+5% synergy
Phyrexian Arena
6% of 191320 decks
-9% synergy
Bloodchief Ascension
6% of 191320 decks
+3% synergy
Kindred Discovery
6% of 191322 decks
-1% synergy
Annie Joins Up
6% of 25260 decks
-7% synergy
Oath of Teferi
6% of 98728 decks
+2% synergy
Anointed Procession
6% of 98729 decks
-3% synergy
Necromancy
5% of 191320 decks
+2% synergy
Sterling Grove
5% of 55800 decks
-2% synergy
Battles
Invasion of Ikoria
7% of 79358 decks
+3% synergy
Planeswalkers
Teferi, Time Raveler
21% of 98728 decks
+14% synergy
Oko, Thief of Crowns
10% of 81793 decks
+4% synergy
Tyvar, Jubilant Brawler
8% of 81793 decks
+3% synergy
Dihada, Binder of Wills
7% of 51769 decks
+2% synergy
Narset, Parter of Veils
6% of 191322 decks
+2% synergy
Nicol Bolas, Dragon-God
6% of 88767 decks
+2% synergy
Utility Lands
Urborg, Tomb of Yawgmoth
28% of 191327 decks
+18% synergy
Gaea's Cradle
28% of 81797 decks
+22% synergy
Reliquary Tower
22% of 191327 decks
-8% synergy
Urza's Saga
19% of 191327 decks
+12% synergy
Bojuka Bog
14% of 191320 decks
-16% synergy
Takenuma, Abandoned Mire
12% of 191320 decks
+2% synergy
Shifting Woodland
11% of 44597 decks
+5% synergy
Minamo, School at Water's Edge
10% of 191322 decks
+6% synergy
Cabal Coffers
9% of 191320 decks
-2% synergy
Yavimaya, Cradle of Growth
9% of 191327 decks
-0% synergy
Phyrexian Tower
9% of 191320 decks
-0% synergy
Rogue's Passage
7% of 191327 decks
-12% synergy
Cephalid Coliseum
7% of 191322 decks
+4% synergy
Hall of Heliod's Generosity
7% of 98729 decks
+0% synergy
City of Traitors
6% of 191327 decks
+5% synergy
Emergence Zone
6% of 191327 decks
+4% synergy
Mystic Sanctuary
6% of 191322 decks
-6% synergy
Shizo, Death's Storehouse
6% of 191320 decks
+1% synergy
Three Tree City
6% of 93235 decks
+0% synergy
Field of the Dead
6% of 191327 decks
+2% synergy
Mana Artifacts
Sol Ring
91% of 191327 decks
+7% synergy
Arcane Signet
83% of 191327 decks
+11% synergy
Fellwar Stone
43% of 191327 decks
+22% synergy
Talisman of Dominance
40% of 191316 decks
+8% synergy
Mana Vault
39% of 191327 decks
+32% synergy
Mana Crypt
37% of 191327 decks
+30% synergy
Mox Opal
30% of 191327 decks
+26% synergy
Talisman of Creativity
25% of 88769 decks
-4% synergy
Talisman of Progress
25% of 98728 decks
+1% synergy
Talisman of Indulgence
22% of 88769 decks
-4% synergy
Mox Amber
22% of 191327 decks
+18% synergy
Dimir Signet
20% of 191316 decks
-9% synergy
Talisman of Hierarchy
16% of 98727 decks
-9% synergy
Chromatic Lantern
15% of 191327 decks
+6% synergy
Grim Monolith
15% of 191327 decks
+13% synergy
Thought Vessel
12% of 191327 decks
-5% synergy
Timeless Lotus
11% of 42470 decks
-1% synergy
Izzet Signet
11% of 88769 decks
-17% synergy
Rakdos Signet
10% of 88769 decks
-19% synergy
Talisman of Curiosity
10% of 81793 decks
-3% synergy
Azorius Signet
9% of 98728 decks
-16% synergy
Orzhov Signet
8% of 98727 decks
-19% synergy
Relic of Sauron
6% of 81175 decks
-3% synergy
Talisman of Resilience
6% of 81793 decks
-6% synergy
Basalt Monolith
6% of 191327 decks
+3% synergy
Chromatic Orrery
5% of 191327 decks
+4% synergy
Lands
Tropical Island
96% of 81793 decks
+82% synergy
Bayou
96% of 81793 decks
+82% synergy
Tundra
96% of 98728 decks
+82% synergy
Volcanic Island
95% of 88769 decks
+81% synergy
Scrubland
94% of 98727 decks
+80% synergy
Command Tower
94% of 191327 decks
+20% synergy
Savannah
93% of 55800 decks
+80% synergy
Taiga
92% of 45912 decks
+79% synergy
Badlands
91% of 88769 decks
+78% synergy
Plateau
86% of 51769 decks
+74% synergy
Polluted Delta
84% of 191327 decks
+72% synergy
Watery Grave
76% of 191316 decks
+35% synergy
Flooded Strand
65% of 191327 decks
+54% synergy
Misty Rainforest
64% of 191327 decks
+52% synergy
Marsh Flats
64% of 191327 decks
+53% synergy
Scalding Tarn
63% of 191327 decks
+53% synergy
Verdant Catacombs
61% of 191327 decks
+50% synergy
Bloodstained Mire
60% of 191327 decks
+49% synergy
Hallowed Fountain
60% of 98728 decks
+19% synergy
Breeding Pool
60% of 81793 decks
+19% synergy
Overgrown Tomb
55% of 81793 decks
+13% synergy
Steam Vents
54% of 88769 decks
+15% synergy
Blood Crypt
52% of 88769 decks
+14% synergy
Exotic Orchard
52% of 191327 decks
+16% synergy
Mana Confluence
51% of 191327 decks
+44% synergy
Godless Shrine
51% of 98727 decks
+10% synergy
City of Brass
50% of 191327 decks
+42% synergy
Morphic Pool
49% of 191316 decks
+23% synergy
Windswept Heath
39% of 191327 decks
+28% synergy
Arid Mesa
38% of 191327 decks
+28% synergy
Gemstone Caverns
38% of 191327 decks
+33% synergy
Temple Garden
36% of 55800 decks
-3% synergy
Wooded Foothills
36% of 191327 decks
+26% synergy
Stomping Ground
32% of 45912 decks
-8% synergy
Zagoth Triome
31% of 81790 decks
+1% synergy
Sea of Clouds
29% of 98728 decks
+3% synergy
Training Center
27% of 88769 decks
-0% synergy
Xander's Lounge
26% of 88767 decks
+1% synergy
Luxury Suite
26% of 88769 decks
+0% synergy
Raffine's Tower
26% of 98726 decks
-0% synergy
Sacred Foundry
24% of 51769 decks
-12% synergy
Ketria Triome
23% of 45911 decks
-9% synergy
Vault of Champions
23% of 98727 decks
-3% synergy
Rejuvenating Springs
22% of 81793 decks
-6% synergy
Indatha Triome
22% of 55799 decks
-8% synergy
The World Tree
21% of 42470 decks
-11% synergy
Cavern of Souls
21% of 191327 decks
+14% synergy
Undergrowth Stadium
20% of 81793 decks
-5% synergy
Undercity Sewers
20% of 134829 decks
+10% synergy
Spara's Headquarters
20% of 55799 decks
-10% synergy