The Master of Keys (Commander) - Self-Mill

The Master of Keys
Rank #300
161decks
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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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Eiganjo Dynastorian
3.7%inclusion1 decks27 decks
3%synergy
Turbulent Moor
3.7%inclusion1 decks27 decks
2%synergy
Changing Loyalty
3.7%inclusion1 decks27 decks
3%synergy
Restoration Seminar
3.7%inclusion1 decks27 decks
3%synergy
Paramecia Coloniex
2.1%inclusion1 decks48 decks
2%synergy
High Synergy Cards
Ripples of Undeath
74%inclusion119 decks161 decks
71%synergy
Inquisitive Glimmer
78%inclusion126 decks161 decks
71%synergy
Mesa Enchantress
73%inclusion118 decks161 decks
65%synergy
Gravebreaker Lamia
65%inclusion104 decks161 decks
64%synergy
Entity Tracker
66%inclusion106 decks161 decks
60%synergy
Demon of Fate's Design
63%inclusion101 decks161 decks
57%synergy
Starfield Mystic
63%inclusion102 decks161 decks
57%synergy
Scrabbling Skullcrab
55%inclusion89 decks161 decks
54%synergy
Hall of Heliod's Generosity
65%inclusion104 decks161 decks
52%synergy
Animate Dead
61%inclusion98 decks161 decks
51%synergy
Top Cards
Overlord of the Floodpits
54%inclusion87 decks161 decks
51%synergy
Doomwake Giant
54%inclusion87 decks161 decks
48%synergy
Fear of Sleep Paralysis
53%inclusion85 decks161 decks
48%synergy
Dress Down
50%inclusion80 decks161 decks
47%synergy
Sphere of Safety
49%inclusion79 decks161 decks
40%synergy
Overlord of the Balemurk
48%inclusion78 decks161 decks
47%synergy
Mystic Remora
48%inclusion77 decks161 decks
27%synergy
Secret Arcade // Dusty Parlor
45%inclusion73 decks161 decks
41%synergy
Zur, Eternal Schemer
45%inclusion73 decks161 decks
42%synergy
Fear of Impostors
45%inclusion72 decks161 decks
43%synergy
Game Changers
Smothering Tithe
40%inclusion65 decks161 decks
10%synergy
Rhystic Study
34%inclusion55 decks161 decks
3%synergy
Enlightened Tutor
17%inclusion27 decks161 decks
-2%synergy
Necropotence
16%inclusion26 decks161 decks
10%synergy
Demonic Tutor
14%inclusion23 decks161 decks
-6%synergy
Thassa's Oracle
14%inclusion22 decks161 decks
5%synergy
Vampiric Tutor
12%inclusion19 decks161 decks
-5%synergy
Mystical Tutor
11%inclusion18 decks161 decks
0%synergy
Fierce Guardianship
11%inclusion17 decks161 decks
-10%synergy
Cyclonic Rift
8.7%inclusion14 decks161 decks
-14%synergy
Creatures
Victor, Valgavoth's Seneschal
44%inclusion71 decks161 decks
42%synergy
Ondu Spiritdancer
44%inclusion71 decks161 decks
38%synergy
Ghostly Dancers
31%inclusion50 decks161 decks
29%synergy
Zur the Enchanter
30%inclusion49 decks161 decks
25%synergy
Silent Hallcreeper
28%inclusion45 decks161 decks
23%synergy
Enduring Curiosity
27%inclusion43 decks161 decks
19%synergy
Grim Guardian
27%inclusion43 decks161 decks
24%synergy
Soaring Lightbringer
25%inclusion41 decks161 decks
21%synergy
Heliod, the Radiant Dawn
24%inclusion39 decks161 decks
21%synergy
Archon of Sun's Grace
23%inclusion37 decks161 decks
19%synergy
Sage of Mysteries
23%inclusion37 decks161 decks
23%synergy
Aminatou, Veil Piercer
22%inclusion36 decks161 decks
21%synergy
Mindwrack Harpy
20%inclusion33 decks161 decks
20%synergy
Abdel Adrian, Gorion's Ward
19%inclusion31 decks161 decks
18%synergy
Moon-Blessed Cleric
19%inclusion30 decks161 decks
14%synergy
Archetype of Imagination
18%inclusion29 decks161 decks
13%synergy
Overlord of the Mistmoors
16%inclusion26 decks161 decks
14%synergy
Alseid of Life's Bounty
16%inclusion26 decks161 decks
15%synergy
Hedron Crab
15%inclusion24 decks161 decks
14%synergy
Ancient Cellarspawn
15%inclusion24 decks161 decks
12%synergy
Skullsnap Nuisance
14%inclusion23 decks161 decks
14%synergy
Athreos, Shroud-Veiled
14%inclusion23 decks161 decks
10%synergy
Gremlin Tamer
14%inclusion23 decks161 decks
13%synergy
Balemurk Leech
14%inclusion23 decks161 decks
14%synergy
Esper Sentinel
14%inclusion22 decks161 decks
-14%synergy
Starnheim Courser
12%inclusion20 decks161 decks
9%synergy
Emet-Selch of the Third Seat
12%inclusion13 decks113 decks
2%synergy
Phenax, God of Deception
11%inclusion18 decks161 decks
11%synergy
Lotho, Corrupt Shirriff
11%inclusion18 decks161 decks
-6%synergy
Nashi, Searcher in the Dark
11%inclusion18 decks161 decks
11%synergy
Laboratory Maniac
11%inclusion17 decks161 decks
7%synergy
Fear of Infinity
10%inclusion16 decks161 decks
9%synergy
Stenn, Paranoid Partisan
10%inclusion16 decks161 decks
9%synergy
Summon: Bahamut
10%inclusion11 decks113 decks
8%synergy
Summon: Yojimbo
10%inclusion11 decks113 decks
9%synergy
Witch Enchanter
9.3%inclusion15 decks161 decks
2%synergy
Spirited Companion
9.3%inclusion15 decks161 decks
7%synergy
Grand Abolisher
8.7%inclusion14 decks161 decks
-6%synergy
Hullbreaker Horror
8.7%inclusion14 decks161 decks
3%synergy
Neerdiv, Devious Diver
8.4%inclusion12 decks143 decks
8%synergy
Ledger Shredder
8.1%inclusion13 decks161 decks
-1%synergy
Displacer Kitten
7.5%inclusion12 decks161 decks
1%synergy
Fear of Surveillance
7.5%inclusion12 decks161 decks
7%synergy
Stitcher's Supplier
7.5%inclusion12 decks161 decks
7%synergy
Valley Floodcaller
6.8%inclusion11 decks161 decks
3%synergy
Nightmare Shepherd
6.8%inclusion11 decks161 decks
4%synergy
Auramancer
6.8%inclusion11 decks161 decks
4%synergy
Valgavoth, Terror Eater
6.8%inclusion11 decks161 decks
4%synergy
Millikin
6.8%inclusion11 decks161 decks
6%synergy
Agent of Erebos
6.2%inclusion10 decks161 decks
6%synergy
Instants
Swords to Plowshares
43%inclusion70 decks161 decks
-24%synergy
Entomb
31%inclusion50 decks161 decks
24%synergy
Counterspell
31%inclusion50 decks161 decks
-11%synergy
Path to Exile
25%inclusion41 decks161 decks
-17%synergy
Void Rend
23%inclusion37 decks161 decks
-12%synergy
An Offer You Can't Refuse
22%inclusion36 decks161 decks
-5%synergy
Arcane Denial
22%inclusion35 decks161 decks
2%synergy
Dark Ritual
20%inclusion33 decks161 decks
1%synergy
Dovin's Veto
15%inclusion24 decks161 decks
-11%synergy
Thirst for Meaning
14%inclusion23 decks161 decks
13%synergy
Otherworldly Gaze
14%inclusion23 decks161 decks
12%synergy
Inkshield
12%inclusion20 decks161 decks
3%synergy
Frantic Search
11%inclusion18 decks161 decks
-7%synergy
Swan Song
11%inclusion18 decks161 decks
-9%synergy
Negate
11%inclusion17 decks161 decks
-6%synergy
Silence
10%inclusion16 decks161 decks
0%synergy
Sink into Stupor
10%inclusion16 decks161 decks
-3%synergy
Fell the Profane
9.3%inclusion15 decks161 decks
0%synergy
Faithful Mending
9.3%inclusion15 decks161 decks
6%synergy
Cabal Ritual
8.7%inclusion14 decks161 decks
5%synergy
Demonic Consultation
8.1%inclusion13 decks161 decks
0%synergy
Anguished Unmaking
7.5%inclusion12 decks161 decks
-18%synergy
Utter End
6.8%inclusion11 decks161 decks
0%synergy
Mindbreak Trap
6.2%inclusion10 decks161 decks
0%synergy
Tainted Pact
5.6%inclusion9 decks161 decks
-1%synergy
Brainstorm
5.6%inclusion9 decks161 decks
-11%synergy
Mana Drain
5.6%inclusion9 decks161 decks
-12%synergy
Thought Scour
5.6%inclusion9 decks161 decks
5%synergy
Borne Upon a Wind
5.6%inclusion9 decks161 decks
1%synergy
Sorceries
Sevinne's Reclamation
42%inclusion67 decks161 decks
33%synergy
Redress Fate
31%inclusion50 decks161 decks
26%synergy
Reanimate
20%inclusion32 decks161 decks
4%synergy
Extinguish All Hope
20%inclusion32 decks161 decks
18%synergy
Windfall
19%inclusion30 decks161 decks
5%synergy
Dance of the Manse
18%inclusion29 decks161 decks
15%synergy
Singularity Rupture
17%inclusion18 decks105 decks
15%synergy
Toxic Deluge
17%inclusion27 decks161 decks
-3%synergy
Resurgent Belief
14%inclusion22 decks161 decks
12%synergy
Time Wipe
13%inclusion21 decks161 decks
7%synergy
Idyllic Tutor
13%inclusion21 decks161 decks
9%synergy
Glimpse the Unthinkable
12%inclusion20 decks161 decks
12%synergy
Space-Time Anomaly
11%inclusion11 decks102 decks
9%synergy
Replenish
11%inclusion17 decks161 decks
9%synergy
Damn
9.3%inclusion15 decks161 decks
-11%synergy
Demonic Counsel
8.1%inclusion13 decks161 decks
7%synergy
Brilliant Restoration
8.1%inclusion13 decks161 decks
6%synergy
Traumatize
8.1%inclusion13 decks161 decks
8%synergy
Unmarked Grave
6.8%inclusion11 decks161 decks
6%synergy
Buried Alive
6.8%inclusion11 decks161 decks
3%synergy
Supreme Verdict
6.2%inclusion10 decks161 decks
-9%synergy
Ponder
6.2%inclusion10 decks161 decks
-3%synergy
Austere Command
6.2%inclusion10 decks161 decks
-2%synergy
Terminus
5.6%inclusion9 decks161 decks
2%synergy
Feed the Swarm
5.6%inclusion9 decks161 decks
3%synergy
Utility Artifacts
Mesmeric Orb
20%inclusion32 decks161 decks
19%synergy
Cloud Key
11%inclusion17 decks161 decks
7%synergy
Lightning Greaves
8.1%inclusion13 decks161 decks
-15%synergy
Keys to the House
7.5%inclusion12 decks161 decks
7%synergy
Wayfarer's Bauble
6.8%inclusion11 decks161 decks
-1%synergy
Perpetual Timepiece
6.2%inclusion10 decks161 decks
6%synergy
The One Ring
6.2%inclusion10 decks161 decks
-7%synergy
Wishclaw Talisman
6.2%inclusion10 decks161 decks
-2%synergy
Crucible of Worlds
5.6%inclusion9 decks161 decks
5%synergy
Palantír of Orthanc
5.6%inclusion9 decks161 decks
5%synergy
Enchantments
Starfield of Nyx
45%inclusion72 decks161 decks
41%synergy
Necromancy
44%inclusion71 decks161 decks
40%synergy
Seal of Cleansing
44%inclusion71 decks161 decks
43%synergy
Sigil of the Empty Throne
41%inclusion66 decks161 decks
35%synergy
Propaganda
40%inclusion65 decks161 decks
12%synergy
Cemetery Tampering
40%inclusion64 decks161 decks
39%synergy
Grasp of Fate
39%inclusion63 decks161 decks
33%synergy
Mirrormade
39%inclusion62 decks161 decks
29%synergy
Ghostly Prison
38%inclusion61 decks161 decks
15%synergy
Amphibian Downpour
34%inclusion55 decks161 decks
30%synergy
Stillness in Motion
31%inclusion38 decks121 decks
31%synergy
Estrid's Invocation
31%inclusion50 decks161 decks
26%synergy
Blind Obedience
30%inclusion48 decks161 decks
18%synergy
Dance of the Dead
28%inclusion45 decks161 decks
26%synergy
Darksteel Mutation
25%inclusion41 decks161 decks
19%synergy
Cacophony Unleashed
25%inclusion40 decks161 decks
23%synergy
Defiled Crypt // Cadaver Lab
25%inclusion40 decks161 decks
24%synergy
The Tale of Tamiyo
24%inclusion39 decks161 decks
24%synergy
Polluted Cistern // Dim Oubliette
24%inclusion38 decks161 decks
23%synergy
Extravagant Replication
23%inclusion37 decks161 decks
18%synergy
Monologue Tax
23%inclusion37 decks161 decks
17%synergy
Court of Cunning
22%inclusion36 decks161 decks
21%synergy
Out of the Tombs
22%inclusion35 decks161 decks
21%synergy
Copy Enchantment
21%inclusion34 decks161 decks
16%synergy
Restricted Office // Lecture Hall
21%inclusion34 decks161 decks
19%synergy
Phyrexian Arena
20%inclusion33 decks161 decks
6%synergy
Ethereal Armor
20%inclusion32 decks161 decks
15%synergy
Bottomless Pool // Locker Room
19%inclusion31 decks161 decks
17%synergy
Sheltered by Ghosts
19%inclusion31 decks161 decks
17%synergy
Seal of Removal
19%inclusion31 decks161 decks
19%synergy
Central Elevator // Promising Stairs
19%inclusion30 decks161 decks
18%synergy
All That Glitters
19%inclusion30 decks161 decks
10%synergy
Hallowed Haunting
19%inclusion30 decks161 decks
16%synergy
Teval's Judgment
18%inclusion23 decks125 decks
18%synergy
Imprisoned in the Moon
18%inclusion29 decks161 decks
11%synergy
Shark Typhoon
17%inclusion28 decks161 decks
12%synergy
Greater Auramancy
17%inclusion28 decks161 decks
13%synergy
Black Market Connections
16%inclusion26 decks161 decks
2%synergy
Mirror Room // Fractured Realm
16%inclusion26 decks161 decks
14%synergy
The Meathook Massacre
15%inclusion24 decks161 decks
12%synergy
Touch the Spirit Realm
15%inclusion24 decks161 decks
13%synergy
Timely Ward
15%inclusion24 decks161 decks
10%synergy
Cramped Vents // Access Maze
14%inclusion23 decks161 decks
12%synergy
Secrets of the Dead
14%inclusion22 decks161 decks
13%synergy
Dazzling Theater // Prop Room
14%inclusion22 decks161 decks
12%synergy
Underwater Tunnel // Slimy Aquarium
13%inclusion21 decks161 decks
13%synergy
Nowhere to Run
13%inclusion21 decks161 decks
12%synergy
Meat Locker // Drowned Diner
13%inclusion20 decks158 decks
12%synergy
The Eldest Reborn
12%inclusion19 decks161 decks
9%synergy
One with the Multiverse
11%inclusion18 decks161 decks
7%synergy
Battles
Invasion of Theros
9.3%inclusion15 decks161 decks
8%synergy
Planeswalkers
Teferi, Time Raveler
6.2%inclusion10 decks161 decks
-2%synergy
Ashiok, Dream Render
5.6%inclusion9 decks161 decks
4%synergy
Utility Lands
Bojuka Bog
35%inclusion56 decks161 decks
8%synergy
Otawara, Soaring City
19%inclusion30 decks161 decks
0%synergy
Takenuma, Abandoned Mire
14%inclusion23 decks161 decks
8%synergy
Cephalid Coliseum
14%inclusion22 decks161 decks
10%synergy
Reliquary Tower
14%inclusion22 decks161 decks
-20%synergy
Halimar Depths
10%inclusion16 decks161 decks
5%synergy
Nephalia Drownyard
9.3%inclusion15 decks161 decks
9%synergy
Adagia, Windswept Bastion
8.7%inclusion9 decks104 decks
6%synergy
Urborg, Tomb of Yawgmoth
8.1%inclusion13 decks161 decks
-5%synergy
Ancient Tomb
6.8%inclusion11 decks161 decks
-6%synergy
Serra's Sanctum
6.8%inclusion11 decks161 decks
5%synergy
Temple of the False God
6.8%inclusion11 decks161 decks
-1%synergy
Urza's Saga
6.2%inclusion10 decks161 decks
-6%synergy
Mana Artifacts
Arcane Signet
86%inclusion138 decks161 decks
-2%synergy
Sol Ring
85%inclusion137 decks161 decks
-5%synergy
Talisman of Dominance
48%inclusion78 decks161 decks
-1%synergy
Talisman of Progress
40%inclusion65 decks161 decks
-4%synergy
Talisman of Hierarchy
40%inclusion64 decks161 decks
-4%synergy
Azorius Signet
39%inclusion62 decks161 decks
8%synergy
Orzhov Signet
34%inclusion55 decks161 decks
2%synergy
Dimir Signet
26%inclusion42 decks161 decks
-5%synergy
Fellwar Stone
25%inclusion41 decks161 decks
-8%synergy
Mind Stone
14%inclusion23 decks161 decks
2%synergy
Commander's Sphere
8.7%inclusion14 decks161 decks
-9%synergy
Lotus Petal
6.8%inclusion11 decks161 decks
-4%synergy
Mana Vault
6.8%inclusion11 decks161 decks
-2%synergy
Lands
Island
96%inclusion155 decks161 decks
3%synergy
Plains
95%inclusion153 decks161 decks
3%synergy
Swamp
94%inclusion152 decks161 decks
3%synergy
Command Tower
94%inclusion151 decks161 decks
1%synergy
Arcane Sanctum
61%inclusion99 decks161 decks
7%synergy
Caves of Koilos
56%inclusion90 decks161 decks
20%synergy
Adarkar Wastes
53%inclusion85 decks161 decks
21%synergy
Exotic Orchard
52%inclusion84 decks161 decks
-7%synergy
Underground River
50%inclusion80 decks161 decks
15%synergy
Hallowed Fountain
45%inclusion73 decks161 decks
-5%synergy
Watery Grave
44%inclusion71 decks161 decks
-7%synergy
Glacial Fortress
43%inclusion70 decks161 decks
1%synergy
Godless Shrine
43%inclusion70 decks161 decks
-8%synergy
Valgavoth's Lair
41%inclusion66 decks161 decks
38%synergy
Polluted Delta
40%inclusion64 decks161 decks
2%synergy
Flooded Strand
37%inclusion60 decks161 decks
-1%synergy
Raffine's Tower
37%inclusion59 decks161 decks
-4%synergy
Isolated Chapel
35%inclusion57 decks161 decks
-6%synergy
Marsh Flats
35%inclusion57 decks161 decks
-1%synergy
Drowned Catacomb
34%inclusion55 decks161 decks
-3%synergy
Prairie Stream
31%inclusion50 decks161 decks
-10%synergy
Undercity Sewers
30%inclusion49 decks161 decks
16%synergy
Meticulous Archive
30%inclusion49 decks161 decks
17%synergy
Shadowy Backstreet
30%inclusion48 decks161 decks
17%synergy
Sunken Hollow
29%inclusion47 decks161 decks
-10%synergy
Sea of Clouds
28%inclusion45 decks161 decks
-7%synergy
Vault of Champions
26%inclusion42 decks161 decks
-6%synergy
Morphic Pool
25%inclusion40 decks161 decks
-9%synergy
Deserted Beach
25%inclusion40 decks161 decks
4%synergy
Contaminated Landscape
24%inclusion39 decks161 decks
10%synergy
Azorius Chancery
23%inclusion37 decks161 decks
9%synergy
Terramorphic Expanse
23%inclusion37 decks161 decks
7%synergy
Shipwreck Marsh
22%inclusion36 decks161 decks
2%synergy
Evolving Wilds
22%inclusion35 decks161 decks
-3%synergy
Floodfarm Verge
22%inclusion35 decks161 decks
11%synergy
Dimir Aqueduct
21%inclusion34 decks161 decks
8%synergy
Temple of Enlightenment
21%inclusion34 decks161 decks
5%synergy
Gloomlake Verge
21%inclusion34 decks161 decks
10%synergy
Orzhov Basilica
20%inclusion33 decks161 decks
5%synergy
Obscura Storefront
20%inclusion33 decks161 decks
11%synergy
Temple of Deceit
20%inclusion32 decks161 decks
3%synergy
Temple of Silence
20%inclusion32 decks161 decks
1%synergy
Shattered Sanctum
16%inclusion26 decks161 decks
0%synergy
Fabled Passage
16%inclusion25 decks161 decks
8%synergy
Tainted Field
15%inclusion24 decks161 decks
8%synergy
Tainted Isle
14%inclusion23 decks161 decks
8%synergy
Darkwater Catacombs
14%inclusion22 decks161 decks
-1%synergy
City of Brass
14%inclusion22 decks161 decks
-1%synergy
Ash Barrens
12%inclusion20 decks161 decks
2%synergy
Port Town
12%inclusion19 decks161 decks
-5%synergy
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