The Master of Keys (Commander) - Expensive Auras

The Master of Keys
Rank #302
10decks
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Harvey McGuinness
Sep 23, 2025
Harvey McGuinness
What if Thassa's Oracle Were Banned?
What would happen to cEDH if Thassa's Oracle were banned tomorrow? Would the best decks fall apart? Would there be a new meta? Let's discuss.
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Exhibition Tidecaller
50%inclusion1 decks2 decks
49%synergy
High Synergy Cards
Animate Dead
80%inclusion8 decks10 decks
70%synergy
Mystic Remora
90%inclusion9 decks10 decks
70%synergy
Sevinne's Reclamation
70%inclusion7 decks10 decks
61%synergy
Otawara, Soaring City
80%inclusion8 decks10 decks
61%synergy
Dance of the Dead
60%inclusion6 decks10 decks
58%synergy
Dress Down
60%inclusion6 decks10 decks
58%synergy
Ripples of Undeath
60%inclusion6 decks10 decks
57%synergy
Necromancy
60%inclusion6 decks10 decks
56%synergy
Tainted Pact
60%inclusion6 decks10 decks
53%synergy
Wishclaw Talisman
60%inclusion6 decks10 decks
52%synergy
Top Cards
Dark Ritual
70%inclusion7 decks10 decks
50%synergy
Swan Song
70%inclusion7 decks10 decks
50%synergy
Swords to Plowshares
70%inclusion7 decks10 decks
2%synergy
Esper Sentinel
60%inclusion6 decks10 decks
33%synergy
Silence
60%inclusion6 decks10 decks
50%synergy
Cyclonic Rift
60%inclusion6 decks10 decks
37%synergy
Vampiric Tutor
60%inclusion6 decks10 decks
43%synergy
Mental Misstep
50%inclusion5 decks10 decks
44%synergy
Entomb
50%inclusion5 decks10 decks
43%synergy
Tinybones Joins Up
50%inclusion5 decks10 decks
49%synergy
Game Changers
Ancient Tomb
80%inclusion8 decks10 decks
68%synergy
Rhystic Study
80%inclusion8 decks10 decks
49%synergy
Smothering Tithe
70%inclusion7 decks10 decks
40%synergy
Thassa's Oracle
60%inclusion6 decks10 decks
51%synergy
Intuition
60%inclusion6 decks10 decks
58%synergy
Mana Vault
60%inclusion6 decks10 decks
51%synergy
Demonic Tutor
60%inclusion6 decks10 decks
40%synergy
Force of Will
60%inclusion6 decks10 decks
48%synergy
Enlightened Tutor
60%inclusion6 decks10 decks
41%synergy
Fierce Guardianship
60%inclusion6 decks10 decks
40%synergy
Creatures
Valley Floodcaller
50%inclusion5 decks10 decks
46%synergy
Mockingbird
50%inclusion5 decks10 decks
46%synergy
Grand Abolisher
50%inclusion5 decks10 decks
36%synergy
Abdel Adrian, Gorion's Ward
50%inclusion5 decks10 decks
48%synergy
Lotho, Corrupt Shirriff
40%inclusion4 decks10 decks
23%synergy
Mesa Enchantress
40%inclusion4 decks10 decks
31%synergy
Pearl-Ear, Imperial Advisor
40%inclusion4 decks10 decks
38%synergy
Ranger-Captain of Eos
40%inclusion4 decks10 decks
34%synergy
Orcish Bowmasters
40%inclusion4 decks10 decks
30%synergy
Voice of Victory
33%inclusion1 decks3 decks
25%synergy
Tataru Taru
33%inclusion1 decks3 decks
25%synergy
Wan Shi Tong, Librarian
33%inclusion1 decks3 decks
28%synergy
Killian, Decisive Mentor
33%inclusion1 decks3 decks
33%synergy
Kor Spiritdancer
30%inclusion3 decks10 decks
29%synergy
Sram, Senior Edificer
30%inclusion3 decks10 decks
25%synergy
Witch Enchanter
20%inclusion2 decks10 decks
13%synergy
Archivist of Oghma
20%inclusion2 decks10 decks
14%synergy
Displacer Kitten
20%inclusion2 decks10 decks
13%synergy
Scrabbling Skullcrab
20%inclusion2 decks10 decks
19%synergy
Light-Paws, Emperor's Voice
20%inclusion2 decks10 decks
19%synergy
Opposition Agent
20%inclusion2 decks10 decks
12%synergy
Phyrexian Metamorph
20%inclusion2 decks10 decks
12%synergy
Arna Kennerüd, Skycaptain
20%inclusion2 decks10 decks
18%synergy
Inquisitive Glimmer
20%inclusion2 decks10 decks
13%synergy
Giver of Runes
20%inclusion2 decks10 decks
19%synergy
Hedron Crab
20%inclusion2 decks10 decks
19%synergy
Stitcher's Supplier
20%inclusion2 decks10 decks
19%synergy
Talion, the Kindly Lord
20%inclusion2 decks10 decks
13%synergy
Faerie Mastermind
20%inclusion2 decks10 decks
10%synergy
Drannith Magistrate
20%inclusion2 decks10 decks
12%synergy
Umbra Mystic
20%inclusion2 decks10 decks
19%synergy
Entity Tracker
20%inclusion2 decks10 decks
14%synergy
Hullbreaker Horror
20%inclusion2 decks10 decks
14%synergy
Auriok Salvagers
20%inclusion2 decks10 decks
20%synergy
Academy Rector
20%inclusion2 decks10 decks
19%synergy
High Fae Trickster
17%inclusion1 decks6 decks
12%synergy
Solemn Simulacrum
10%inclusion1 decks10 decks
-3%synergy
Starnheim Courser
10%inclusion1 decks10 decks
6%synergy
Vedalken Aethermage
10%inclusion1 decks10 decks
10%synergy
Serra Ascendant
10%inclusion1 decks10 decks
6%synergy
Starfield Mystic
10%inclusion1 decks10 decks
4%synergy
Gravebreaker Lamia
10%inclusion1 decks10 decks
9%synergy
The Mindskinner
10%inclusion1 decks10 decks
9%synergy
Lurrus of the Dream-Den
10%inclusion1 decks10 decks
9%synergy
Vohar, Vodalian Desecrator
10%inclusion1 decks10 decks
6%synergy
Archon of Sun's Grace
10%inclusion1 decks10 decks
6%synergy
Doom Whisperer
10%inclusion1 decks10 decks
9%synergy
Demon of Fate's Design
10%inclusion1 decks10 decks
5%synergy
Mother of Runes
10%inclusion1 decks10 decks
7%synergy
Overlord of the Balemurk
10%inclusion1 decks10 decks
8%synergy
Instants
Mindbreak Trap
50%inclusion5 decks10 decks
43%synergy
Demonic Consultation
50%inclusion5 decks10 decks
42%synergy
Force of Negation
50%inclusion5 decks10 decks
38%synergy
Borne Upon a Wind
50%inclusion5 decks10 decks
45%synergy
Mystical Tutor
50%inclusion5 decks10 decks
39%synergy
Chain of Vapor
40%inclusion4 decks10 decks
37%synergy
An Offer You Can't Refuse
40%inclusion4 decks10 decks
12%synergy
Cabal Ritual
40%inclusion4 decks10 decks
37%synergy
Mana Drain
40%inclusion4 decks10 decks
23%synergy
Flusterstorm
40%inclusion4 decks10 decks
32%synergy
Pact of Negation
40%inclusion4 decks10 decks
33%synergy
Teferi's Protection
30%inclusion3 decks10 decks
14%synergy
Culling the Weak
30%inclusion3 decks10 decks
28%synergy
Counterspell
30%inclusion3 decks10 decks
-12%synergy
Deadly Rollick
20%inclusion2 decks10 decks
4%synergy
Retraction Helix
20%inclusion2 decks10 decks
19%synergy
Gifts Ungiven
20%inclusion2 decks10 decks
17%synergy
Dispel
20%inclusion2 decks10 decks
17%synergy
Slip Out the Back
20%inclusion2 decks10 decks
19%synergy
Into the Flood Maw
20%inclusion2 decks10 decks
16%synergy
Sink into Stupor
20%inclusion2 decks10 decks
7%synergy
Galadriel's Dismissal
20%inclusion2 decks10 decks
19%synergy
Fell the Profane
10%inclusion1 decks10 decks
1%synergy
Muddle the Mixture
10%inclusion1 decks10 decks
6%synergy
Trickbind
10%inclusion1 decks10 decks
9%synergy
Dovin's Veto
10%inclusion1 decks10 decks
-16%synergy
Lim-Dûl's Vault
10%inclusion1 decks10 decks
7%synergy
Fact or Fiction
10%inclusion1 decks10 decks
6%synergy
Brain Freeze
10%inclusion1 decks10 decks
9%synergy
Flawless Maneuver
10%inclusion1 decks10 decks
1%synergy
Angel's Grace
10%inclusion1 decks10 decks
7%synergy
Occult Epiphany
10%inclusion1 decks10 decks
10%synergy
Banishing Knack
10%inclusion1 decks10 decks
10%synergy
Thirst for Meaning
10%inclusion1 decks10 decks
9%synergy
Final Showdown
10%inclusion1 decks10 decks
9%synergy
Ad Nauseam
10%inclusion1 decks10 decks
8%synergy
Delay
10%inclusion1 decks10 decks
8%synergy
Arcane Denial
10%inclusion1 decks10 decks
-10%synergy
Anguished Unmaking
10%inclusion1 decks10 decks
-16%synergy
Sorceries
Imperial Seal
40%inclusion4 decks10 decks
33%synergy
Singularity Rupture
33%inclusion1 decks3 decks
31%synergy
Windfall
30%inclusion3 decks10 decks
17%synergy
Lively Dirge
30%inclusion3 decks10 decks
29%synergy
Replenish
30%inclusion3 decks10 decks
28%synergy
Retether
30%inclusion3 decks10 decks
29%synergy
Beseech the Mirror
30%inclusion3 decks10 decks
26%synergy
Diabolic Intent
20%inclusion2 decks10 decks
15%synergy
Sea Gate Restoration
20%inclusion2 decks10 decks
17%synergy
Praetor's Grasp
20%inclusion2 decks10 decks
17%synergy
Demonic Counsel
20%inclusion2 decks10 decks
19%synergy
Winds of Rath
20%inclusion2 decks10 decks
17%synergy
Mnemonic Betrayal
20%inclusion2 decks10 decks
17%synergy
Toxic Deluge
20%inclusion2 decks10 decks
0%synergy
Traumatize
20%inclusion2 decks10 decks
20%synergy
Austere Command
10%inclusion1 decks10 decks
2%synergy
Rhystic Tutor
10%inclusion1 decks10 decks
10%synergy
Open the Armory
10%inclusion1 decks10 decks
6%synergy
Time Wipe
10%inclusion1 decks10 decks
4%synergy
Infernal Tutor
10%inclusion1 decks10 decks
10%synergy
Reanimate
10%inclusion1 decks10 decks
-6%synergy
Damn
10%inclusion1 decks10 decks
-10%synergy
Extinguish All Hope
10%inclusion1 decks10 decks
8%synergy
Grim Tutor
10%inclusion1 decks10 decks
6%synergy
Utility Artifacts
The One Ring
40%inclusion4 decks10 decks
27%synergy
Mesmeric Orb
30%inclusion3 decks10 decks
29%synergy
Swiftfoot Boots
20%inclusion2 decks10 decks
-4%synergy
Elixir of Immortality
10%inclusion1 decks10 decks
9%synergy
Cloud Key
10%inclusion1 decks10 decks
7%synergy
Crucible of Worlds
10%inclusion1 decks10 decks
9%synergy
Thran Power Suit
10%inclusion1 decks10 decks
8%synergy
Helm of the Gods
10%inclusion1 decks10 decks
9%synergy
Agatha's Soul Cauldron
10%inclusion1 decks10 decks
10%synergy
Brotherhood Regalia
10%inclusion1 decks10 decks
8%synergy
Enchantments
Touch the Spirit Realm
40%inclusion4 decks10 decks
38%synergy
Blind Obedience
40%inclusion4 decks10 decks
28%synergy
Copy Artifact
40%inclusion4 decks10 decks
39%synergy
Spirit Mantle
40%inclusion4 decks10 decks
39%synergy
Steel of the Godhead
40%inclusion4 decks10 decks
37%synergy
Amphibian Downpour
40%inclusion4 decks10 decks
35%synergy
All That Glitters
40%inclusion4 decks10 decks
32%synergy
Static Prison
40%inclusion4 decks10 decks
40%synergy
Sage's Reverie
40%inclusion4 decks10 decks
38%synergy
Aura of Silence
40%inclusion4 decks10 decks
37%synergy
Trouble in Pairs
40%inclusion4 decks10 decks
35%synergy
Stillness in Motion
33%inclusion1 decks3 decks
33%synergy
Tempest Technique
33%inclusion1 decks3 decks
33%synergy
Super State
33%inclusion1 decks3 decks
32%synergy
Daybreak Coronet
30%inclusion3 decks10 decks
29%synergy
Mantle of the Ancients
30%inclusion3 decks10 decks
27%synergy
Necropotence
30%inclusion3 decks10 decks
24%synergy
Auramancer's Guise
30%inclusion3 decks10 decks
29%synergy
Vanishing
30%inclusion3 decks10 decks
29%synergy
Hallowed Haunting
30%inclusion3 decks10 decks
28%synergy
Combat Research
30%inclusion3 decks10 decks
27%synergy
Darksteel Mutation
20%inclusion2 decks10 decks
14%synergy
The Meathook Massacre
20%inclusion2 decks10 decks
17%synergy
Eldrazi Conscription
20%inclusion2 decks10 decks
19%synergy
Glasswing Grace
20%inclusion2 decks10 decks
17%synergy
Moat
20%inclusion2 decks10 decks
20%synergy
Sigarda's Aid
20%inclusion2 decks10 decks
16%synergy
Duelist's Heritage
20%inclusion2 decks10 decks
18%synergy
Dance of Many
20%inclusion2 decks10 decks
20%synergy
Mirrormade
20%inclusion2 decks10 decks
10%synergy
Copy Enchantment
20%inclusion2 decks10 decks
15%synergy
Idolized
20%inclusion2 decks10 decks
19%synergy
Timely Ward
20%inclusion2 decks10 decks
15%synergy
Starfield of Nyx
20%inclusion2 decks10 decks
16%synergy
Sheltered by Ghosts
20%inclusion2 decks10 decks
17%synergy
Ethereal Armor
20%inclusion2 decks10 decks
15%synergy
Staggering Insight
10%inclusion1 decks10 decks
8%synergy
Founding the Third Path
10%inclusion1 decks10 decks
10%synergy
Grasp of Fate
10%inclusion1 decks10 decks
4%synergy
Verity Circle
10%inclusion1 decks10 decks
10%synergy
Gift of Immortality
10%inclusion1 decks10 decks
8%synergy
Imprisoned in the Moon
10%inclusion1 decks10 decks
3%synergy
Hyena Umbra
10%inclusion1 decks10 decks
9%synergy
Extravagant Replication
10%inclusion1 decks10 decks
5%synergy
Sigil of the Empty Throne
10%inclusion1 decks10 decks
4%synergy
Unquestioned Authority
10%inclusion1 decks10 decks
9%synergy
Shardmage's Rescue
10%inclusion1 decks10 decks
10%synergy
Case of the Shifting Visage
10%inclusion1 decks10 decks
10%synergy
Nerd Rage
10%inclusion1 decks10 decks
9%synergy
Eel Umbra
10%inclusion1 decks10 decks
9%synergy
Planeswalkers
Teferi, Time Raveler
20%inclusion2 decks10 decks
12%synergy
Teferi, Master of Time
10%inclusion1 decks10 decks
8%synergy
Utility Lands
Serra's Sanctum
40%inclusion4 decks10 decks
38%synergy
Urza's Saga
40%inclusion4 decks10 decks
28%synergy
Minamo, School at Water's Edge
30%inclusion3 decks10 decks
26%synergy
Hall of Heliod's Generosity
30%inclusion3 decks10 decks
17%synergy
Emergence Zone
30%inclusion3 decks10 decks
28%synergy
Takenuma, Abandoned Mire
30%inclusion3 decks10 decks
24%synergy
City of Traitors
30%inclusion3 decks10 decks
29%synergy
Witch's Clinic
20%inclusion2 decks10 decks
20%synergy
Hall of the Bandit Lord
20%inclusion2 decks10 decks
20%synergy
Maze of Ith
20%inclusion2 decks10 decks
17%synergy
Tolaria West
20%inclusion2 decks10 decks
19%synergy
Eiganjo, Seat of the Empire
20%inclusion2 decks10 decks
15%synergy
Nykthos, Shrine to Nyx
20%inclusion2 decks10 decks
19%synergy
Homeward Path
20%inclusion2 decks10 decks
20%synergy
Shizo, Death's Storehouse
10%inclusion1 decks10 decks
8%synergy
Bojuka Bog
10%inclusion1 decks10 decks
-17%synergy
Wasteland
10%inclusion1 decks10 decks
9%synergy
Phyrexian Tower
10%inclusion1 decks10 decks
6%synergy
Cephalid Coliseum
10%inclusion1 decks10 decks
6%synergy
Strip Mine
10%inclusion1 decks10 decks
8%synergy
Mana Artifacts
Arcane Signet
100%inclusion10 decks10 decks
12%synergy
Sol Ring
100%inclusion10 decks10 decks
10%synergy
Fellwar Stone
80%inclusion8 decks10 decks
47%synergy
Talisman of Dominance
70%inclusion7 decks10 decks
20%synergy
Talisman of Progress
60%inclusion6 decks10 decks
16%synergy
Mox Diamond
60%inclusion6 decks10 decks
53%synergy
Lotus Petal
50%inclusion5 decks10 decks
40%synergy
Talisman of Hierarchy
50%inclusion5 decks10 decks
5%synergy
Mox Opal
50%inclusion5 decks10 decks
42%synergy
Chrome Mox
50%inclusion5 decks10 decks
41%synergy
Lion's Eye Diamond
50%inclusion5 decks10 decks
48%synergy
Grim Monolith
20%inclusion2 decks10 decks
17%synergy
Azorius Signet
20%inclusion2 decks10 decks
-10%synergy
Coalition Relic
10%inclusion1 decks10 decks
9%synergy
Mana Crypt
10%inclusion1 decks10 decks
9%synergy
Mox Amber
10%inclusion1 decks10 decks
4%synergy
Dimir Signet
10%inclusion1 decks10 decks
-20%synergy
Hourglass of the Lost
10%inclusion1 decks10 decks
10%synergy
Mind Stone
10%inclusion1 decks10 decks
-2%synergy
Orzhov Signet
10%inclusion1 decks10 decks
-22%synergy
Lands
Tundra
100%inclusion10 decks10 decks
84%synergy
Command Tower
100%inclusion10 decks10 decks
7%synergy
Hallowed Fountain
100%inclusion10 decks10 decks
49%synergy
Flooded Strand
100%inclusion10 decks10 decks
61%synergy
Underground Sea
80%inclusion8 decks10 decks
64%synergy
Scrubland
80%inclusion8 decks10 decks
64%synergy
Polluted Delta
80%inclusion8 decks10 decks
42%synergy
Godless Shrine
70%inclusion7 decks10 decks
18%synergy
Marsh Flats
70%inclusion7 decks10 decks
34%synergy
Watery Grave
70%inclusion7 decks10 decks
19%synergy
Misty Rainforest
60%inclusion6 decks10 decks
49%synergy
Sea of Clouds
60%inclusion6 decks10 decks
25%synergy
Verdant Catacombs
60%inclusion6 decks10 decks
50%synergy
Island
60%inclusion6 decks10 decks
-33%synergy
Plains
60%inclusion6 decks10 decks
-32%synergy
Morphic Pool
60%inclusion6 decks10 decks
26%synergy
Swamp
50%inclusion5 decks10 decks
-42%synergy
Talon Gates of Madara
50%inclusion5 decks10 decks
49%synergy
Gemstone Caverns
50%inclusion5 decks10 decks
43%synergy
Scalding Tarn
50%inclusion5 decks10 decks
39%synergy
Bloodstained Mire
50%inclusion5 decks10 decks
39%synergy
Exotic Orchard
40%inclusion4 decks10 decks
-19%synergy
Windswept Heath
40%inclusion4 decks10 decks
31%synergy
Arid Mesa
40%inclusion4 decks10 decks
31%synergy
Meticulous Archive
40%inclusion4 decks10 decks
26%synergy
City of Brass
40%inclusion4 decks10 decks
25%synergy
Starting Town
33%inclusion1 decks3 decks
29%synergy
Cavern of Souls
30%inclusion3 decks10 decks
23%synergy
Mana Confluence
30%inclusion3 decks10 decks
16%synergy
Vault of Champions
30%inclusion3 decks10 decks
-2%synergy
Witch Enchanter
20%inclusion2 decks10 decks
13%synergy
Undercity Sewers
20%inclusion2 decks10 decks
5%synergy
Glasswing Grace
20%inclusion2 decks10 decks
17%synergy
Sea Gate Restoration
20%inclusion2 decks10 decks
17%synergy
Spire of Industry
20%inclusion2 decks10 decks
12%synergy
Raffine's Tower
20%inclusion2 decks10 decks
-21%synergy
Sink into Stupor
20%inclusion2 decks10 decks
7%synergy
Forbidden Orchard
20%inclusion2 decks10 decks
18%synergy
Adarkar Wastes
20%inclusion2 decks10 decks
-13%synergy
Glacial Fortress
10%inclusion1 decks10 decks
-33%synergy
Fell the Profane
10%inclusion1 decks10 decks
1%synergy
Clearwater Pathway
10%inclusion1 decks10 decks
4%synergy
Shadowy Backstreet
10%inclusion1 decks10 decks
-3%synergy
Snow-Covered Island
10%inclusion1 decks10 decks
7%synergy
Shipwreck Marsh
10%inclusion1 decks10 decks
-11%synergy
Valgavoth's Lair
10%inclusion1 decks10 decks
7%synergy
Reflecting Pool
10%inclusion1 decks10 decks
2%synergy
Boggart Trawler
10%inclusion1 decks10 decks
7%synergy
Isolated Chapel
10%inclusion1 decks10 decks
-32%synergy
Drowned Catacomb
10%inclusion1 decks10 decks
-28%synergy
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