The Master of Keys (Commander) - Auras

The Master of Keys
Rank #300
97decks
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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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Utility Lands
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Eiganjo Dynastorian
30%inclusion3 decks10 decks
29%synergy
Turbulent Moor
10%inclusion1 decks10 decks
7%synergy
Changing Loyalty
10%inclusion1 decks10 decks
9%synergy
Killian, Decisive Mentor
5.3%inclusion1 decks19 decks
5%synergy
High Synergy Cards
Mesa Enchantress
77%inclusion75 decks97 decks
69%synergy
Entity Tracker
66%inclusion64 decks97 decks
60%synergy
Ripples of Undeath
60%inclusion58 decks97 decks
57%synergy
Inquisitive Glimmer
64%inclusion62 decks97 decks
57%synergy
Ethereal Armor
61%inclusion59 decks97 decks
56%synergy
All That Glitters
59%inclusion57 decks97 decks
50%synergy
Amphibian Downpour
54%inclusion52 decks97 decks
49%synergy
Animate Dead
58%inclusion56 decks97 decks
48%synergy
Starfield Mystic
54%inclusion52 decks97 decks
47%synergy
Mantle of the Ancients
49%inclusion48 decks97 decks
47%synergy
Top Cards
Sage's Reverie
48%inclusion47 decks97 decks
46%synergy
Doomwake Giant
48%inclusion47 decks97 decks
43%synergy
Swords to Plowshares
46%inclusion45 decks97 decks
-21%synergy
Sheltered by Ghosts
45%inclusion44 decks97 decks
43%synergy
Ondu Spiritdancer
44%inclusion43 decks97 decks
38%synergy
Gravebreaker Lamia
43%inclusion42 decks97 decks
42%synergy
Mystic Remora
41%inclusion40 decks97 decks
21%synergy
Timely Ward
41%inclusion40 decks97 decks
36%synergy
Victor, Valgavoth's Seneschal
40%inclusion39 decks97 decks
38%synergy
Darksteel Mutation
38%inclusion37 decks97 decks
32%synergy
Game Changers
Smothering Tithe
33%inclusion32 decks97 decks
3%synergy
Rhystic Study
31%inclusion30 decks97 decks
0%synergy
Enlightened Tutor
19%inclusion18 decks97 decks
0%synergy
Mana Vault
11%inclusion11 decks97 decks
3%synergy
Fierce Guardianship
11%inclusion11 decks97 decks
-9%synergy
Demonic Tutor
11%inclusion11 decks97 decks
-9%synergy
Teferi's Protection
10%inclusion10 decks97 decks
-6%synergy
Ancient Tomb
10%inclusion10 decks97 decks
-2%synergy
Cyclonic Rift
10%inclusion10 decks97 decks
-13%synergy
Thassa's Oracle
9.3%inclusion9 decks97 decks
0%synergy
Creatures
Pearl-Ear, Imperial Advisor
38%inclusion37 decks97 decks
36%synergy
Demon of Fate's Design
37%inclusion36 decks97 decks
32%synergy
Scrabbling Skullcrab
36%inclusion35 decks97 decks
35%synergy
Kor Spiritdancer
36%inclusion35 decks97 decks
35%synergy
Sram, Senior Edificer
36%inclusion35 decks97 decks
31%synergy
Zur the Enchanter
32%inclusion31 decks97 decks
27%synergy
Overlord of the Floodpits
31%inclusion30 decks97 decks
27%synergy
Overlord of the Balemurk
26%inclusion25 decks97 decks
24%synergy
Fear of Impostors
25%inclusion24 decks97 decks
23%synergy
Fear of Sleep Paralysis
25%inclusion24 decks97 decks
20%synergy
Arna Kennerüd, Skycaptain
24%inclusion23 decks97 decks
22%synergy
Eriette of the Charmed Apple
24%inclusion23 decks97 decks
22%synergy
Light-Paws, Emperor's Voice
20%inclusion19 decks97 decks
19%synergy
Archon of Sun's Grace
20%inclusion19 decks97 decks
15%synergy
Bruna, Light of Alabaster
19%inclusion18 decks97 decks
18%synergy
Heliod, the Radiant Dawn
18%inclusion17 decks97 decks
14%synergy
Moon-Blessed Cleric
18%inclusion17 decks97 decks
13%synergy
Eidolon of Countless Battles
16%inclusion16 decks97 decks
15%synergy
Zur, Eternal Schemer
16%inclusion16 decks97 decks
13%synergy
Alseid of Life's Bounty
16%inclusion16 decks97 decks
15%synergy
Esper Sentinel
15%inclusion15 decks97 decks
-12%synergy
Sage of Mysteries
15%inclusion15 decks97 decks
15%synergy
Grim Guardian
15%inclusion15 decks97 decks
13%synergy
Hateful Eidolon
14%inclusion14 decks97 decks
13%synergy
Ghostly Dancers
14%inclusion14 decks97 decks
12%synergy
Killian, Ink Duelist
14%inclusion14 decks97 decks
13%synergy
Heliod's Pilgrim
13%inclusion13 decks97 decks
13%synergy
Enduring Curiosity
13%inclusion13 decks97 decks
5%synergy
Silent Hallcreeper
13%inclusion13 decks97 decks
9%synergy
Transcendent Envoy
13%inclusion13 decks97 decks
12%synergy
Witch Enchanter
11%inclusion11 decks97 decks
4%synergy
Umbra Mystic
11%inclusion11 decks97 decks
11%synergy
Nashi, Searcher in the Dark
11%inclusion11 decks97 decks
11%synergy
Hedron Crab
10%inclusion10 decks97 decks
10%synergy
Danitha Capashen, Paragon
10%inclusion10 decks97 decks
6%synergy
Aminatou, Veil Piercer
10%inclusion10 decks97 decks
9%synergy
Mindwrack Harpy
10%inclusion10 decks97 decks
10%synergy
Twilight Diviner
10%inclusion2 decks21 decks
8%synergy
Abdel Adrian, Gorion's Ward
9.3%inclusion9 decks97 decks
8%synergy
Alela, Artful Provocateur
8.2%inclusion8 decks97 decks
6%synergy
Athreos, Shroud-Veiled
8.2%inclusion8 decks97 decks
4%synergy
Grand Abolisher
8.2%inclusion8 decks97 decks
-6%synergy
Katilda, Dawnhart Martyr
7.2%inclusion7 decks97 decks
7%synergy
Sovereigns of Lost Alara
7.2%inclusion7 decks97 decks
7%synergy
Ancient Cellarspawn
7.2%inclusion7 decks97 decks
4%synergy
Skullsnap Nuisance
7.2%inclusion7 decks97 decks
7%synergy
Spirited Companion
7.2%inclusion7 decks97 decks
5%synergy
Deranged Assistant
7.2%inclusion7 decks97 decks
7%synergy
Sun Titan
7.2%inclusion7 decks97 decks
-1%synergy
Jill, Shiva's Dominant
6.9%inclusion2 decks29 decks
6%synergy
Instants
Counterspell
28%inclusion27 decks97 decks
-14%synergy
Path to Exile
25%inclusion24 decks97 decks
-18%synergy
Otherworldly Gaze
24%inclusion23 decks97 decks
22%synergy
Arcane Denial
20%inclusion19 decks97 decks
-1%synergy
Frantic Search
19%inclusion18 decks97 decks
0%synergy
Dark Ritual
19%inclusion18 decks97 decks
-2%synergy
Void Rend
19%inclusion18 decks97 decks
-16%synergy
An Offer You Can't Refuse
18%inclusion17 decks97 decks
-10%synergy
Entomb
18%inclusion17 decks97 decks
11%synergy
Thirst for Meaning
16%inclusion16 decks97 decks
15%synergy
Fell the Profane
14%inclusion14 decks97 decks
5%synergy
Dovin's Veto
14%inclusion14 decks97 decks
-12%synergy
Sink into Stupor
14%inclusion14 decks97 decks
1%synergy
Swan Song
14%inclusion14 decks97 decks
-6%synergy
Anguished Unmaking
11%inclusion11 decks97 decks
-14%synergy
Dawn's Truce
10%inclusion10 decks97 decks
6%synergy
Slip Out the Back
9.3%inclusion9 decks97 decks
8%synergy
Generous Gift
9.3%inclusion9 decks97 decks
-5%synergy
Brainstorm
8.2%inclusion8 decks97 decks
-9%synergy
Mana Drain
8.2%inclusion8 decks97 decks
-9%synergy
Inkshield
8.2%inclusion8 decks97 decks
-2%synergy
Vampiric Tutor
8.2%inclusion8 decks97 decks
-8%synergy
Tainted Pact
7.2%inclusion7 decks97 decks
0%synergy
Negate
7.2%inclusion7 decks97 decks
-9%synergy
Silence
7.2%inclusion7 decks97 decks
-3%synergy
Faithful Mending
7.2%inclusion7 decks97 decks
4%synergy
Cabal Ritual
7.2%inclusion7 decks97 decks
4%synergy
Demonic Consultation
7.2%inclusion7 decks97 decks
-1%synergy
Borne Upon a Wind
7.2%inclusion7 decks97 decks
2%synergy
Mystical Tutor
7.2%inclusion7 decks97 decks
-3%synergy
Intuition
6.2%inclusion6 decks97 decks
5%synergy
Fact or Fiction
6.2%inclusion6 decks97 decks
3%synergy
Force of Will
6.2%inclusion6 decks97 decks
-6%synergy
Force of Negation
6.2%inclusion6 decks97 decks
-6%synergy
Consider
6.2%inclusion6 decks97 decks
4%synergy
Thought Scour
6.2%inclusion6 decks97 decks
5%synergy
Muddle the Mixture
5.2%inclusion5 decks97 decks
1%synergy
Mental Misstep
5.2%inclusion5 decks97 decks
-1%synergy
Mindbreak Trap
5.2%inclusion5 decks97 decks
-1%synergy
Flusterstorm
5.2%inclusion5 decks97 decks
-3%synergy
Hindering Light
5.2%inclusion5 decks97 decks
4%synergy
Sorceries
Sevinne's Reclamation
31%inclusion30 decks97 decks
22%synergy
Singularity Rupture
25%inclusion7 decks28 decks
23%synergy
Redress Fate
25%inclusion24 decks97 decks
19%synergy
Windfall
20%inclusion19 decks97 decks
6%synergy
Winds of Rath
20%inclusion19 decks97 decks
17%synergy
Extinguish All Hope
18%inclusion17 decks97 decks
16%synergy
Retether
14%inclusion14 decks97 decks
13%synergy
Resurgent Belief
13%inclusion13 decks97 decks
11%synergy
Open the Armory
12%inclusion12 decks97 decks
9%synergy
Damn
11%inclusion11 decks97 decks
-9%synergy
Space-Time Anomaly
11%inclusion3 decks27 decks
10%synergy
Idyllic Tutor
10%inclusion10 decks97 decks
6%synergy
Supreme Verdict
9.3%inclusion9 decks97 decks
-5%synergy
Time Wipe
9.3%inclusion9 decks97 decks
3%synergy
Ponder
8.2%inclusion8 decks97 decks
-1%synergy
Unmarked Grave
8.2%inclusion8 decks97 decks
7%synergy
Replenish
7.2%inclusion7 decks97 decks
5%synergy
Traumatize
7.2%inclusion7 decks97 decks
7%synergy
Glimpse the Unthinkable
7.2%inclusion7 decks97 decks
7%synergy
Toxic Deluge
7.2%inclusion7 decks97 decks
-12%synergy
Read the Bones
6.2%inclusion6 decks97 decks
2%synergy
Reanimate
6.2%inclusion6 decks97 decks
-10%synergy
Beseech the Mirror
6.2%inclusion6 decks97 decks
2%synergy
Dance of the Manse
6.2%inclusion6 decks97 decks
3%synergy
Austere Command
5.2%inclusion5 decks97 decks
-3%synergy
Imperial Seal
5.2%inclusion5 decks97 decks
-2%synergy
Cleansing Meditation
5.2%inclusion5 decks97 decks
5%synergy
Diresight
5.2%inclusion5 decks97 decks
5%synergy
Utility Artifacts
Mesmeric Orb
16%inclusion16 decks97 decks
15%synergy
Swiftfoot Boots
14%inclusion14 decks97 decks
-10%synergy
Wayfarer's Bauble
9.3%inclusion9 decks97 decks
2%synergy
Wishclaw Talisman
9.3%inclusion9 decks97 decks
2%synergy
Perpetual Timepiece
7.2%inclusion7 decks97 decks
7%synergy
The One Ring
7.2%inclusion7 decks97 decks
-5%synergy
Semblance Anvil
5.2%inclusion5 decks97 decks
4%synergy
Enchantments
Steel of the Godhead
37%inclusion36 decks97 decks
34%synergy
Dress Down
37%inclusion36 decks97 decks
35%synergy
Glasswing Grace
35%inclusion34 decks97 decks
32%synergy
Sigil of the Empty Throne
35%inclusion34 decks97 decks
29%synergy
Sphere of Safety
35%inclusion34 decks97 decks
26%synergy
Cemetery Tampering
35%inclusion34 decks97 decks
34%synergy
Daybreak Coronet
34%inclusion33 decks97 decks
33%synergy
Grasp of Fate
33%inclusion32 decks97 decks
27%synergy
Mirrormade
33%inclusion32 decks97 decks
23%synergy
Necromancy
32%inclusion31 decks97 decks
27%synergy
Secret Arcade // Dusty Parlor
30%inclusion29 decks97 decks
25%synergy
Aqueous Form
29%inclusion28 decks97 decks
26%synergy
Combat Research
29%inclusion28 decks97 decks
26%synergy
Propaganda
28%inclusion27 decks97 decks
-1%synergy
Imprisoned in the Moon
27%inclusion26 decks97 decks
20%synergy
Eldrazi Conscription
27%inclusion26 decks97 decks
25%synergy
Auramancer's Guise
26%inclusion25 decks97 decks
25%synergy
Spirit Mantle
26%inclusion25 decks97 decks
25%synergy
Seal of Cleansing
26%inclusion25 decks97 decks
24%synergy
Estrid's Invocation
25%inclusion24 decks97 decks
20%synergy
Stillness in Motion
23%inclusion8 decks35 decks
22%synergy
Cacophony Unleashed
23%inclusion22 decks97 decks
21%synergy
Kaya's Ghostform
22%inclusion21 decks97 decks
19%synergy
Ghostly Prison
22%inclusion21 decks97 decks
-1%synergy
Battle Mastery
22%inclusion21 decks97 decks
21%synergy
Copy Enchantment
21%inclusion20 decks97 decks
16%synergy
Songbirds' Blessing
20%inclusion19 decks97 decks
18%synergy
Staggering Insight
20%inclusion19 decks97 decks
18%synergy
Unable to Scream
20%inclusion19 decks97 decks
19%synergy
Starfield of Nyx
19%inclusion18 decks97 decks
15%synergy
The Tale of Tamiyo
19%inclusion18 decks97 decks
18%synergy
Monologue Tax
19%inclusion18 decks97 decks
12%synergy
Dance of the Dead
18%inclusion17 decks97 decks
15%synergy
Idolized
18%inclusion17 decks97 decks
17%synergy
Eaten by Piranhas
18%inclusion17 decks97 decks
16%synergy
Curator's Ward
16%inclusion16 decks97 decks
14%synergy
Hyena Umbra
15%inclusion15 decks97 decks
14%synergy
Shark Typhoon
15%inclusion15 decks97 decks
10%synergy
Eel Umbra
14%inclusion14 decks97 decks
14%synergy
Witness Protection
14%inclusion14 decks97 decks
13%synergy
Black Market Connections
14%inclusion14 decks97 decks
0%synergy
Teval's Judgment
14%inclusion5 decks35 decks
13%synergy
Super State
14%inclusion4 decks28 decks
13%synergy
The Meathook Massacre
13%inclusion13 decks97 decks
10%synergy
Shardmage's Rescue
13%inclusion13 decks97 decks
13%synergy
Dog Umbra
13%inclusion13 decks97 decks
13%synergy
Curiosity
12%inclusion12 decks97 decks
3%synergy
Out of the Tombs
12%inclusion12 decks97 decks
12%synergy
Phyrexian Arena
12%inclusion12 decks97 decks
-2%synergy
Trouble in Pairs
12%inclusion12 decks97 decks
7%synergy
Battles
Invasion of Theros
14%inclusion14 decks97 decks
13%synergy
Utility Lands
Hall of Heliod's Generosity
54%inclusion52 decks97 decks
41%synergy
Bojuka Bog
40%inclusion39 decks97 decks
13%synergy
Otawara, Soaring City
15%inclusion15 decks97 decks
-4%synergy
Rogue's Passage
14%inclusion14 decks97 decks
5%synergy
Adagia, Windswept Bastion
11%inclusion3 decks28 decks
8%synergy
Halimar Depths
10%inclusion10 decks97 decks
6%synergy
Urza's Saga
9.3%inclusion9 decks97 decks
-2%synergy
Serra's Sanctum
8.2%inclusion8 decks97 decks
7%synergy
Cephalid Coliseum
8.2%inclusion8 decks97 decks
5%synergy
Takenuma, Abandoned Mire
7.2%inclusion7 decks97 decks
1%synergy
Reliquary Tower
7.2%inclusion7 decks97 decks
-27%synergy
Ishgard, the Holy See
6.9%inclusion2 decks29 decks
3%synergy
Emergence Zone
6.2%inclusion6 decks97 decks
4%synergy
Hall of the Bandit Lord
5.2%inclusion5 decks97 decks
5%synergy
Mana Artifacts
Arcane Signet
90%inclusion87 decks97 decks
2%synergy
Sol Ring
87%inclusion84 decks97 decks
-3%synergy
Talisman of Progress
53%inclusion51 decks97 decks
8%synergy
Talisman of Dominance
51%inclusion49 decks97 decks
1%synergy
Talisman of Hierarchy
48%inclusion47 decks97 decks
4%synergy
Azorius Signet
40%inclusion39 decks97 decks
10%synergy
Orzhov Signet
36%inclusion35 decks97 decks
4%synergy
Fellwar Stone
32%inclusion31 decks97 decks
-1%synergy
Dimir Signet
25%inclusion24 decks97 decks
-5%synergy
Commander's Sphere
13%inclusion13 decks97 decks
-4%synergy
Mind Stone
13%inclusion13 decks97 decks
2%synergy
Chromatic Lantern
8.2%inclusion8 decks97 decks
-4%synergy
Lotus Petal
7.2%inclusion7 decks97 decks
-3%synergy
Mox Opal
6.2%inclusion6 decks97 decks
-2%synergy
Chrome Mox
6.2%inclusion6 decks97 decks
-3%synergy
Mox Diamond
6.2%inclusion6 decks97 decks
-1%synergy
Worn Powerstone
5.2%inclusion5 decks97 decks
4%synergy
Lion's Eye Diamond
5.2%inclusion5 decks97 decks
3%synergy
Thran Dynamo
5.2%inclusion5 decks97 decks
1%synergy
Lands
Command Tower
93%inclusion90 decks97 decks
0%synergy
Island
92%inclusion89 decks97 decks
-1%synergy
Plains
92%inclusion89 decks97 decks
0%synergy
Swamp
89%inclusion86 decks97 decks
-3%synergy
Arcane Sanctum
57%inclusion55 decks97 decks
3%synergy
Adarkar Wastes
57%inclusion55 decks97 decks
24%synergy
Hallowed Fountain
53%inclusion51 decks97 decks
2%synergy
Caves of Koilos
52%inclusion50 decks97 decks
16%synergy
Watery Grave
51%inclusion49 decks97 decks
-1%synergy
Godless Shrine
49%inclusion48 decks97 decks
-2%synergy
Underground River
47%inclusion46 decks97 decks
13%synergy
Exotic Orchard
46%inclusion45 decks97 decks
-12%synergy
Flooded Strand
41%inclusion40 decks97 decks
3%synergy
Raffine's Tower
38%inclusion37 decks97 decks
-3%synergy
Meticulous Archive
37%inclusion36 decks97 decks
23%synergy
Valgavoth's Lair
37%inclusion36 decks97 decks
35%synergy
Glacial Fortress
36%inclusion35 decks97 decks
-7%synergy
Isolated Chapel
36%inclusion35 decks97 decks
-6%synergy
Vault of Champions
36%inclusion35 decks97 decks
4%synergy
Glasswing Grace
35%inclusion34 decks97 decks
32%synergy
Polluted Delta
35%inclusion34 decks97 decks
-3%synergy
Shadowy Backstreet
33%inclusion32 decks97 decks
20%synergy
Sea of Clouds
33%inclusion32 decks97 decks
-2%synergy
Drowned Catacomb
32%inclusion31 decks97 decks
-6%synergy
Undercity Sewers
31%inclusion30 decks97 decks
16%synergy
Evolving Wilds
31%inclusion30 decks97 decks
6%synergy
Marsh Flats
31%inclusion30 decks97 decks
-5%synergy
Terramorphic Expanse
28%inclusion27 decks97 decks
12%synergy
Obscura Storefront
27%inclusion26 decks97 decks
18%synergy
Contaminated Landscape
26%inclusion25 decks97 decks
12%synergy
Prairie Stream
26%inclusion25 decks97 decks
-15%synergy
Azorius Chancery
25%inclusion24 decks97 decks
11%synergy
Morphic Pool
25%inclusion24 decks97 decks
-9%synergy
Deserted Beach
23%inclusion22 decks97 decks
2%synergy
Temple of Deceit
22%inclusion21 decks97 decks
5%synergy
Orzhov Basilica
22%inclusion21 decks97 decks
7%synergy
Dimir Aqueduct
21%inclusion20 decks97 decks
8%synergy
Temple of Enlightenment
21%inclusion20 decks97 decks
5%synergy
Sunken Hollow
21%inclusion20 decks97 decks
-19%synergy
Tainted Isle
19%inclusion18 decks97 decks
12%synergy
Ash Barrens
19%inclusion18 decks97 decks
8%synergy
Tainted Field
19%inclusion18 decks97 decks
12%synergy
Temple of Silence
19%inclusion18 decks97 decks
0%synergy
Shipwreck Marsh
16%inclusion16 decks97 decks
-4%synergy
Gloomlake Verge
15%inclusion15 decks97 decks
5%synergy
Mystic Gate
15%inclusion15 decks97 decks
10%synergy
Fell the Profane
14%inclusion14 decks97 decks
5%synergy
Fetid Heath
14%inclusion14 decks97 decks
1%synergy
Sink into Stupor
14%inclusion14 decks97 decks
1%synergy
Starting Town
14%inclusion4 decks29 decks
10%synergy
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