The Master of Keys (Commander) - Self-Mill

The Master of Keys
Rank #304
202decks
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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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Creatures
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Sorceries
Utility Artifacts
Enchantments
Battles
Planeswalkers
Utility Lands
Mana Artifacts
Lands
Back to Top
Falcon and Redwing
2.7%inclusion1 decks37 decks
3%synergy
Super Intelligence
2.4%inclusion1 decks42 decks
2%synergy
Construct a Cosmic Cube
2.3%inclusion1 decks44 decks
2%synergy
Riddles in the Dark
1.6%inclusion1 decks64 decks
1%synergy
High Synergy Cards
Inquisitive Glimmer
78%inclusion157 decks202 decks
71%synergy
Ripples of Undeath
72%inclusion146 decks202 decks
70%synergy
Mesa Enchantress
70%inclusion142 decks202 decks
62%synergy
Gravebreaker Lamia
60%inclusion122 decks202 decks
59%synergy
Entity Tracker
61%inclusion124 decks202 decks
55%synergy
Starfield Mystic
61%inclusion124 decks202 decks
55%synergy
Scrabbling Skullcrab
53%inclusion108 decks202 decks
53%synergy
Demon of Fate's Design
56%inclusion114 decks202 decks
51%synergy
Animate Dead
60%inclusion122 decks202 decks
51%synergy
Doomwake Giant
54%inclusion109 decks202 decks
48%synergy
Top Cards
Overlord of the Floodpits
51%inclusion103 decks202 decks
48%synergy
Fear of Sleep Paralysis
50%inclusion101 decks202 decks
45%synergy
Dress Down
49%inclusion98 decks202 decks
46%synergy
Overlord of the Balemurk
48%inclusion97 decks202 decks
46%synergy
Mystic Remora
47%inclusion95 decks202 decks
27%synergy
Necromancy
47%inclusion94 decks202 decks
42%synergy
Sphere of Safety
46%inclusion92 decks202 decks
36%synergy
Victor, Valgavoth's Seneschal
44%inclusion89 decks202 decks
42%synergy
Starfield of Nyx
44%inclusion88 decks202 decks
40%synergy
Fear of Impostors
43%inclusion86 decks202 decks
41%synergy
Game Changers
Smothering Tithe
39%inclusion78 decks202 decks
8%synergy
Rhystic Study
31%inclusion63 decks202 decks
1%synergy
Enlightened Tutor
16%inclusion33 decks202 decks
-2%synergy
Necropotence
14%inclusion29 decks202 decks
8%synergy
Demonic Tutor
14%inclusion28 decks202 decks
-6%synergy
Thassa's Oracle
13%inclusion27 decks202 decks
5%synergy
Vampiric Tutor
12%inclusion24 decks202 decks
-5%synergy
Fierce Guardianship
11%inclusion22 decks202 decks
-9%synergy
Mystical Tutor
10%inclusion20 decks202 decks
-1%synergy
Cyclonic Rift
7.9%inclusion16 decks202 decks
-15%synergy
Creatures
Zur, Eternal Schemer
41%inclusion83 decks202 decks
38%synergy
Ondu Spiritdancer
41%inclusion83 decks202 decks
35%synergy
Ghostly Dancers
30%inclusion60 decks202 decks
27%synergy
Enduring Curiosity
28%inclusion57 decks202 decks
20%synergy
Silent Hallcreeper
28%inclusion56 decks202 decks
23%synergy
Grim Guardian
27%inclusion54 decks202 decks
24%synergy
Zur the Enchanter
27%inclusion54 decks202 decks
22%synergy
Heliod, the Radiant Dawn
25%inclusion50 decks202 decks
21%synergy
Soaring Lightbringer
23%inclusion47 decks202 decks
19%synergy
Archon of Sun's Grace
22%inclusion45 decks202 decks
18%synergy
Sage of Mysteries
22%inclusion45 decks202 decks
22%synergy
Aminatou, Veil Piercer
22%inclusion44 decks202 decks
20%synergy
Moon-Blessed Cleric
19%inclusion39 decks202 decks
15%synergy
Abdel Adrian, Gorion's Ward
19%inclusion39 decks202 decks
18%synergy
Mindwrack Harpy
19%inclusion38 decks202 decks
18%synergy
Alseid of Life's Bounty
18%inclusion37 decks202 decks
17%synergy
Hedron Crab
17%inclusion34 decks202 decks
16%synergy
Archetype of Imagination
16%inclusion33 decks202 decks
12%synergy
Overlord of the Mistmoors
16%inclusion32 decks202 decks
14%synergy
Skullsnap Nuisance
14%inclusion29 decks202 decks
14%synergy
Athreos, Shroud-Veiled
14%inclusion29 decks202 decks
10%synergy
Ancient Cellarspawn
14%inclusion29 decks202 decks
12%synergy
Esper Sentinel
14%inclusion28 decks202 decks
-13%synergy
Lotho, Corrupt Shirriff
13%inclusion27 decks202 decks
-4%synergy
Balemurk Leech
13%inclusion27 decks202 decks
13%synergy
Gremlin Tamer
13%inclusion26 decks202 decks
12%synergy
Grand Abolisher
12%inclusion24 decks202 decks
-3%synergy
Starnheim Courser
11%inclusion23 decks202 decks
8%synergy
Stenn, Paranoid Partisan
11%inclusion23 decks202 decks
10%synergy
Eiganjo Dynastorian
11%inclusion9 decks80 decks
10%synergy
Laboratory Maniac
11%inclusion22 decks202 decks
8%synergy
Nashi, Searcher in the Dark
11%inclusion22 decks202 decks
10%synergy
Spirited Companion
10%inclusion21 decks202 decks
9%synergy
Emet-Selch of the Third Seat
10%inclusion15 decks155 decks
0%synergy
Witch Enchanter
9.4%inclusion19 decks202 decks
2%synergy
Phenax, God of Deception
9.4%inclusion19 decks202 decks
9%synergy
Summon: Yojimbo
9.0%inclusion14 decks155 decks
8%synergy
Fear of Infinity
8.9%inclusion18 decks202 decks
8%synergy
Hullbreaker Horror
8.9%inclusion18 decks202 decks
3%synergy
Summon: Bahamut
8.4%inclusion13 decks155 decks
7%synergy
Stitcher's Supplier
7.9%inclusion16 decks202 decks
7%synergy
Fear of Surveillance
7.4%inclusion15 decks202 decks
7%synergy
Auramancer
7.4%inclusion15 decks202 decks
5%synergy
Ledger Shredder
7.4%inclusion15 decks202 decks
-1%synergy
Millikin
7.4%inclusion15 decks202 decks
7%synergy
Agent of Erebos
6.9%inclusion14 decks202 decks
6%synergy
Nightmare Shepherd
6.9%inclusion14 decks202 decks
5%synergy
Neerdiv, Devious Diver
6.5%inclusion12 decks184 decks
6%synergy
Solemn Simulacrum
5.9%inclusion12 decks202 decks
-7%synergy
Displacer Kitten
5.9%inclusion12 decks202 decks
-1%synergy
Instants
Swords to Plowshares
43%inclusion86 decks202 decks
-25%synergy
Entomb
32%inclusion65 decks202 decks
25%synergy
Counterspell
30%inclusion61 decks202 decks
-12%synergy
Path to Exile
24%inclusion48 decks202 decks
-19%synergy
An Offer You Can't Refuse
23%inclusion46 decks202 decks
-5%synergy
Void Rend
22%inclusion44 decks202 decks
-13%synergy
Dark Ritual
21%inclusion43 decks202 decks
1%synergy
Arcane Denial
21%inclusion43 decks202 decks
1%synergy
Dovin's Veto
16%inclusion33 decks202 decks
-10%synergy
Thirst for Meaning
15%inclusion31 decks202 decks
14%synergy
Otherworldly Gaze
14%inclusion29 decks202 decks
12%synergy
Frantic Search
13%inclusion26 decks202 decks
-6%synergy
Swan Song
12%inclusion25 decks202 decks
-8%synergy
Inkshield
12%inclusion24 decks202 decks
2%synergy
Sink into Stupor
11%inclusion23 decks202 decks
-2%synergy
Silence
10%inclusion21 decks202 decks
0%synergy
Fell the Profane
10%inclusion20 decks202 decks
1%synergy
Negate
10%inclusion20 decks202 decks
-6%synergy
Cabal Ritual
10%inclusion20 decks202 decks
7%synergy
Mana Drain
8.9%inclusion18 decks202 decks
-8%synergy
Demonic Consultation
8.4%inclusion17 decks202 decks
1%synergy
Gifts Ungiven
6.9%inclusion14 decks202 decks
4%synergy
Faithful Mending
6.9%inclusion14 decks202 decks
3%synergy
Tainted Pact
6.4%inclusion13 decks202 decks
-0%synergy
Brainstorm
6.4%inclusion13 decks202 decks
-10%synergy
Force of Will
6.4%inclusion13 decks202 decks
-6%synergy
Force of Negation
6.4%inclusion13 decks202 decks
-5%synergy
Anguished Unmaking
6.4%inclusion13 decks202 decks
-19%synergy
Utter End
6.4%inclusion13 decks202 decks
0%synergy
Mindbreak Trap
5.9%inclusion12 decks202 decks
-1%synergy
Flusterstorm
5.4%inclusion11 decks202 decks
-2%synergy
Borne Upon a Wind
5.4%inclusion11 decks202 decks
1%synergy
Sorceries
Sevinne's Reclamation
39%inclusion79 decks202 decks
30%synergy
Redress Fate
31%inclusion62 decks202 decks
25%synergy
Windfall
23%inclusion47 decks202 decks
10%synergy
Reanimate
19%inclusion39 decks202 decks
3%synergy
Extinguish All Hope
18%inclusion37 decks202 decks
17%synergy
Dance of the Manse
17%inclusion34 decks202 decks
14%synergy
Toxic Deluge
16%inclusion33 decks202 decks
-3%synergy
Singularity Rupture
16%inclusion23 decks147 decks
13%synergy
Resurgent Belief
15%inclusion30 decks202 decks
13%synergy
Space-Time Anomaly
14%inclusion20 decks144 decks
12%synergy
Glimpse the Unthinkable
13%inclusion26 decks202 decks
12%synergy
Time Wipe
12%inclusion24 decks202 decks
6%synergy
Idyllic Tutor
11%inclusion22 decks202 decks
7%synergy
Replenish
10%inclusion20 decks202 decks
8%synergy
Supreme Verdict
8.9%inclusion18 decks202 decks
-6%synergy
Brilliant Restoration
8.4%inclusion17 decks202 decks
7%synergy
Demonic Counsel
7.9%inclusion16 decks202 decks
7%synergy
Damn
7.9%inclusion16 decks202 decks
-12%synergy
Traumatize
7.9%inclusion16 decks202 decks
7%synergy
Unmarked Grave
7.4%inclusion15 decks202 decks
6%synergy
Buried Alive
6.9%inclusion14 decks202 decks
3%synergy
Restoration Seminar
6.3%inclusion5 decks80 decks
5%synergy
Austere Command
5.9%inclusion12 decks202 decks
-2%synergy
Ponder
5.4%inclusion11 decks202 decks
-4%synergy
Utility Artifacts
Mesmeric Orb
21%inclusion43 decks202 decks
20%synergy
Cloud Key
10%inclusion21 decks202 decks
7%synergy
Perpetual Timepiece
7.4%inclusion15 decks202 decks
7%synergy
Lightning Greaves
7.4%inclusion15 decks202 decks
-15%synergy
Wayfarer's Bauble
6.9%inclusion14 decks202 decks
-0%synergy
Keys to the House
6.9%inclusion14 decks202 decks
7%synergy
The One Ring
6.4%inclusion13 decks202 decks
-6%synergy
Crucible of Worlds
5.4%inclusion11 decks202 decks
5%synergy
Palantír of Orthanc
5.4%inclusion11 decks202 decks
4%synergy
Wishclaw Talisman
5.4%inclusion11 decks202 decks
-2%synergy
Enchantments
Secret Arcade // Dusty Parlor
42%inclusion85 decks202 decks
38%synergy
Seal of Cleansing
41%inclusion82 decks202 decks
39%synergy
Sigil of the Empty Throne
40%inclusion81 decks202 decks
34%synergy
Mirrormade
40%inclusion81 decks202 decks
30%synergy
Propaganda
40%inclusion81 decks202 decks
11%synergy
Cemetery Tampering
39%inclusion79 decks202 decks
38%synergy
Ghostly Prison
39%inclusion79 decks202 decks
16%synergy
Grasp of Fate
37%inclusion74 decks202 decks
31%synergy
Amphibian Downpour
35%inclusion70 decks202 decks
30%synergy
Estrid's Invocation
33%inclusion66 decks202 decks
28%synergy
Blind Obedience
31%inclusion62 decks202 decks
19%synergy
Stillness in Motion
29%inclusion48 decks163 decks
29%synergy
Dance of the Dead
28%inclusion57 decks202 decks
26%synergy
Cacophony Unleashed
28%inclusion56 decks202 decks
26%synergy
Defiled Crypt // Cadaver Lab
26%inclusion52 decks202 decks
25%synergy
Monologue Tax
24%inclusion49 decks202 decks
18%synergy
Darksteel Mutation
22%inclusion45 decks202 decks
16%synergy
Court of Cunning
22%inclusion45 decks202 decks
21%synergy
The Tale of Tamiyo
22%inclusion45 decks202 decks
22%synergy
Polluted Cistern // Dim Oubliette
22%inclusion45 decks202 decks
22%synergy
Ethereal Armor
22%inclusion44 decks202 decks
17%synergy
Extravagant Replication
21%inclusion43 decks202 decks
16%synergy
Out of the Tombs
21%inclusion42 decks202 decks
20%synergy
Copy Enchantment
21%inclusion42 decks202 decks
16%synergy
All That Glitters
21%inclusion42 decks202 decks
13%synergy
Phyrexian Arena
20%inclusion40 decks202 decks
6%synergy
Shark Typhoon
19%inclusion39 decks202 decks
14%synergy
Seal of Removal
19%inclusion39 decks202 decks
19%synergy
Restricted Office // Lecture Hall
19%inclusion38 decks202 decks
17%synergy
Sheltered by Ghosts
19%inclusion38 decks202 decks
16%synergy
Teval's Judgment
19%inclusion31 decks167 decks
18%synergy
Bottomless Pool // Locker Room
18%inclusion37 decks202 decks
17%synergy
Hallowed Haunting
18%inclusion37 decks202 decks
16%synergy
Greater Auramancy
18%inclusion36 decks202 decks
14%synergy
Central Elevator // Promising Stairs
17%inclusion35 decks202 decks
17%synergy
Imprisoned in the Moon
16%inclusion33 decks202 decks
10%synergy
Black Market Connections
16%inclusion33 decks202 decks
1%synergy
Mirror Room // Fractured Realm
16%inclusion33 decks202 decks
14%synergy
The Meathook Massacre
16%inclusion32 decks202 decks
13%synergy
Leyline of Anticipation
16%inclusion32 decks202 decks
12%synergy
Timely Ward
15%inclusion31 decks202 decks
10%synergy
Secrets of the Dead
15%inclusion30 decks202 decks
15%synergy
Cramped Vents // Access Maze
14%inclusion28 decks202 decks
12%synergy
Touch the Spirit Realm
12%inclusion25 decks202 decks
10%synergy
One with the Multiverse
12%inclusion24 decks202 decks
7%synergy
Underwater Tunnel // Slimy Aquarium
12%inclusion24 decks202 decks
12%synergy
Meat Locker // Drowned Diner
12%inclusion23 decks199 decks
11%synergy
Authority of the Consuls
11%inclusion23 decks202 decks
-2%synergy
Dazzling Theater // Prop Room
11%inclusion23 decks202 decks
10%synergy
Nowhere to Run
11%inclusion23 decks202 decks
10%synergy
Battles
Invasion of Theros
9.4%inclusion19 decks202 decks
8%synergy
Planeswalkers
Teferi, Time Raveler
5.9%inclusion12 decks202 decks
-2%synergy
Utility Lands
Hall of Heliod's Generosity
60%inclusion122 decks202 decks
48%synergy
Bojuka Bog
36%inclusion73 decks202 decks
9%synergy
Otawara, Soaring City
18%inclusion37 decks202 decks
-1%synergy
Reliquary Tower
15%inclusion30 decks202 decks
-19%synergy
Takenuma, Abandoned Mire
14%inclusion29 decks202 decks
8%synergy
Cephalid Coliseum
13%inclusion27 decks202 decks
10%synergy
Halimar Depths
10%inclusion21 decks202 decks
6%synergy
Adagia, Windswept Bastion
10%inclusion14 decks146 decks
7%synergy
Nephalia Drownyard
7.9%inclusion16 decks202 decks
7%synergy
Urborg, Tomb of Yawgmoth
7.9%inclusion16 decks202 decks
-5%synergy
Ancient Tomb
7.4%inclusion15 decks202 decks
-5%synergy
Urza's Saga
6.4%inclusion13 decks202 decks
-5%synergy
Serra's Sanctum
5.4%inclusion11 decks202 decks
4%synergy
Temple of the False God
5.4%inclusion11 decks202 decks
-2%synergy
Mana Artifacts
Arcane Signet
86%inclusion173 decks202 decks
-2%synergy
Sol Ring
84%inclusion169 decks202 decks
-6%synergy
Talisman of Dominance
51%inclusion104 decks202 decks
1%synergy
Talisman of Hierarchy
45%inclusion90 decks202 decks
-0%synergy
Talisman of Progress
44%inclusion88 decks202 decks
-1%synergy
Azorius Signet
34%inclusion69 decks202 decks
5%synergy
Orzhov Signet
30%inclusion60 decks202 decks
-2%synergy
Fellwar Stone
28%inclusion57 decks202 decks
-5%synergy
Dimir Signet
23%inclusion46 decks202 decks
-7%synergy
Mind Stone
13%inclusion27 decks202 decks
2%synergy
Lotus Petal
8.4%inclusion17 decks202 decks
-2%synergy
Commander's Sphere
7.4%inclusion15 decks202 decks
-10%synergy
Mana Vault
7.4%inclusion15 decks202 decks
-1%synergy
Lands
Island
97%inclusion196 decks202 decks
4%synergy
Swamp
96%inclusion193 decks202 decks
4%synergy
Plains
95%inclusion192 decks202 decks
3%synergy
Command Tower
94%inclusion190 decks202 decks
1%synergy
Arcane Sanctum
63%inclusion128 decks202 decks
9%synergy
Caves of Koilos
55%inclusion111 decks202 decks
19%synergy
Exotic Orchard
54%inclusion110 decks202 decks
-4%synergy
Underground River
53%inclusion107 decks202 decks
18%synergy
Adarkar Wastes
52%inclusion106 decks202 decks
20%synergy
Hallowed Fountain
48%inclusion97 decks202 decks
-3%synergy
Watery Grave
47%inclusion94 decks202 decks
-5%synergy
Glacial Fortress
45%inclusion91 decks202 decks
2%synergy
Godless Shrine
45%inclusion91 decks202 decks
-7%synergy
Raffine's Tower
41%inclusion82 decks202 decks
-0%synergy
Polluted Delta
40%inclusion81 decks202 decks
2%synergy
Isolated Chapel
40%inclusion80 decks202 decks
-2%synergy
Flooded Strand
38%inclusion77 decks202 decks
-0%synergy
Valgavoth's Lair
38%inclusion76 decks202 decks
35%synergy
Drowned Catacomb
38%inclusion76 decks202 decks
-1%synergy
Marsh Flats
35%inclusion71 decks202 decks
-1%synergy
Undercity Sewers
32%inclusion65 decks202 decks
17%synergy
Meticulous Archive
31%inclusion63 decks202 decks
17%synergy
Prairie Stream
30%inclusion61 decks202 decks
-10%synergy
Shadowy Backstreet
29%inclusion59 decks202 decks
17%synergy
Sea of Clouds
29%inclusion59 decks202 decks
-6%synergy
Sunken Hollow
29%inclusion58 decks202 decks
-11%synergy
Vault of Champions
28%inclusion57 decks202 decks
-4%synergy
Morphic Pool
27%inclusion55 decks202 decks
-6%synergy
Deserted Beach
26%inclusion53 decks202 decks
5%synergy
Azorius Chancery
25%inclusion51 decks202 decks
12%synergy
Contaminated Landscape
25%inclusion50 decks202 decks
11%synergy
Terramorphic Expanse
24%inclusion48 decks202 decks
8%synergy
Dimir Aqueduct
23%inclusion47 decks202 decks
11%synergy
Shipwreck Marsh
22%inclusion45 decks202 decks
2%synergy
Orzhov Basilica
22%inclusion44 decks202 decks
7%synergy
Floodfarm Verge
21%inclusion43 decks202 decks
10%synergy
Temple of Enlightenment
21%inclusion42 decks202 decks
5%synergy
Evolving Wilds
21%inclusion42 decks202 decks
-4%synergy
Temple of Deceit
20%inclusion40 decks202 decks
3%synergy
Temple of Silence
19%inclusion39 decks202 decks
1%synergy
Gloomlake Verge
19%inclusion38 decks202 decks
8%synergy
Obscura Storefront
19%inclusion38 decks202 decks
10%synergy
Shattered Sanctum
17%inclusion34 decks202 decks
-1%synergy
Tainted Isle
16%inclusion33 decks202 decks
10%synergy
Tainted Field
16%inclusion33 decks202 decks
9%synergy
Fabled Passage
15%inclusion30 decks202 decks
7%synergy
City of Brass
15%inclusion30 decks202 decks
-0%synergy
Darkwater Catacombs
13%inclusion26 decks202 decks
-2%synergy
Fetid Heath
12%inclusion25 decks202 decks
-1%synergy
Port Town
11%inclusion23 decks202 decks
-6%synergy
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