The Master of Keys (Commander) - Upgraded Mill

The Master of Keys
Rank #302
47decks
As CommanderAs CardAverage DeckDecksView Precon
Bracket
All12345
Budget
Any$$$$
Background image for What if Thassa's Oracle Were Banned?
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.
Deck Filters
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
New Cards
High Synergy Cards
Top Cards
Game Changers
Creatures
Instants
Sorceries
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
Back to Top
Eiganjo Dynastorian
33%inclusion1 decks3 decks
33%synergy
Turbulent Moor
33%inclusion1 decks3 decks
33%synergy
Changing Loyalty
33%inclusion1 decks3 decks
33%synergy
Does Machines
7.7%inclusion1 decks13 decks
8%synergy
High Synergy Cards
Inquisitive Glimmer
85%inclusion40 decks47 decks
78%synergy
Gravebreaker Lamia
72%inclusion34 decks47 decks
71%synergy
Ripples of Undeath
72%inclusion34 decks47 decks
70%synergy
Entity Tracker
72%inclusion34 decks47 decks
66%synergy
Mesa Enchantress
70%inclusion33 decks47 decks
61%synergy
Animate Dead
70%inclusion33 decks47 decks
61%synergy
Starfield Mystic
66%inclusion31 decks47 decks
59%synergy
Demon of Fate's Design
64%inclusion30 decks47 decks
58%synergy
Scrabbling Skullcrab
57%inclusion27 decks47 decks
56%synergy
Doomwake Giant
62%inclusion29 decks47 decks
56%synergy
Top Cards
Mirrormade
57%inclusion27 decks47 decks
48%synergy
Swords to Plowshares
57%inclusion27 decks47 decks
-11%synergy
Fear of Sleep Paralysis
57%inclusion27 decks47 decks
52%synergy
Dress Down
55%inclusion26 decks47 decks
53%synergy
Necromancy
53%inclusion25 decks47 decks
49%synergy
Sphere of Safety
51%inclusion24 decks47 decks
42%synergy
Ondu Spiritdancer
51%inclusion24 decks47 decks
45%synergy
Grasp of Fate
49%inclusion23 decks47 decks
43%synergy
An Offer You Can't Refuse
49%inclusion23 decks47 decks
22%synergy
Mystic Remora
49%inclusion23 decks47 decks
28%synergy
Game Changers
Smothering Tithe
28%inclusion13 decks47 decks
-3%synergy
Rhystic Study
15%inclusion7 decks47 decks
-16%synergy
Enlightened Tutor
13%inclusion6 decks47 decks
-6%synergy
Consecrated Sphinx
11%inclusion5 decks47 decks
5%synergy
Farewell
8.5%inclusion4 decks47 decks
-4%synergy
Demonic Tutor
8.5%inclusion4 decks47 decks
-12%synergy
Serra's Sanctum
6.4%inclusion3 decks47 decks
5%synergy
Gifts Ungiven
6.4%inclusion3 decks47 decks
4%synergy
Necropotence
6.4%inclusion3 decks47 decks
0%synergy
Creatures
Overlord of the Floodpits
45%inclusion21 decks47 decks
41%synergy
Overlord of the Balemurk
45%inclusion21 decks47 decks
43%synergy
Victor, Valgavoth's Seneschal
45%inclusion21 decks47 decks
43%synergy
Zur, Eternal Schemer
43%inclusion20 decks47 decks
39%synergy
Fear of Impostors
36%inclusion17 decks47 decks
35%synergy
Heliod, the Radiant Dawn
34%inclusion16 decks47 decks
30%synergy
Ghostly Dancers
34%inclusion16 decks47 decks
32%synergy
Silent Hallcreeper
32%inclusion15 decks47 decks
27%synergy
Enduring Curiosity
28%inclusion13 decks47 decks
20%synergy
Sage of Mysteries
26%inclusion12 decks47 decks
25%synergy
Grim Guardian
26%inclusion12 decks47 decks
23%synergy
Abdel Adrian, Gorion's Ward
23%inclusion11 decks47 decks
22%synergy
Mindwrack Harpy
23%inclusion11 decks47 decks
23%synergy
Lotho, Corrupt Shirriff
21%inclusion10 decks47 decks
4%synergy
Archon of Sun's Grace
19%inclusion9 decks47 decks
15%synergy
Soaring Lightbringer
19%inclusion9 decks47 decks
15%synergy
Moon-Blessed Cleric
19%inclusion9 decks47 decks
14%synergy
Balemurk Leech
19%inclusion9 decks47 decks
19%synergy
Athreos, Shroud-Veiled
19%inclusion9 decks47 decks
15%synergy
Zur the Enchanter
19%inclusion9 decks47 decks
14%synergy
Archetype of Imagination
17%inclusion8 decks47 decks
12%synergy
Alseid of Life's Bounty
17%inclusion8 decks47 decks
16%synergy
Skullsnap Nuisance
15%inclusion7 decks47 decks
14%synergy
Aminatou, Veil Piercer
15%inclusion7 decks47 decks
14%synergy
Hullbreaker Horror
15%inclusion7 decks47 decks
9%synergy
Twilight Diviner
13%inclusion2 decks15 decks
12%synergy
Starnheim Courser
13%inclusion6 decks47 decks
9%synergy
Witch Enchanter
13%inclusion6 decks47 decks
6%synergy
Overlord of the Mistmoors
13%inclusion6 decks47 decks
11%synergy
Athreos, God of Passage
13%inclusion6 decks47 decks
11%synergy
Ancient Cellarspawn
13%inclusion6 decks47 decks
10%synergy
Grand Abolisher
13%inclusion6 decks47 decks
-2%synergy
Emet-Selch of the Third Seat
12%inclusion4 decks33 decks
3%synergy
Hedron Crab
11%inclusion5 decks47 decks
10%synergy
Spirited Companion
11%inclusion5 decks47 decks
9%synergy
Ledger Shredder
11%inclusion5 decks47 decks
2%synergy
Fear of Infinity
8.5%inclusion4 decks47 decks
8%synergy
Stenn, Paranoid Partisan
8.5%inclusion4 decks47 decks
7%synergy
Valley Floodcaller
8.5%inclusion4 decks47 decks
5%synergy
Laboratory Maniac
8.5%inclusion4 decks47 decks
5%synergy
Neerdiv, Devious Diver
8.5%inclusion4 decks47 decks
8%synergy
Nightmare Shepherd
8.5%inclusion4 decks47 decks
6%synergy
Auramancer
8.5%inclusion4 decks47 decks
6%synergy
Syr Konrad, the Grim
6.4%inclusion3 decks47 decks
1%synergy
The Mindskinner
6.4%inclusion3 decks47 decks
6%synergy
Lurrus of the Dream-Den
6.4%inclusion3 decks47 decks
5%synergy
Doom Whisperer
6.4%inclusion3 decks47 decks
5%synergy
Esper Sentinel
6.4%inclusion3 decks47 decks
-21%synergy
Vilis, Broker of Blood
6.4%inclusion3 decks47 decks
5%synergy
Angel of Suffering
6.4%inclusion3 decks47 decks
6%synergy
Instants
Counterspell
49%inclusion23 decks47 decks
7%synergy
Arcane Denial
43%inclusion20 decks47 decks
22%synergy
Dark Ritual
38%inclusion18 decks47 decks
19%synergy
Path to Exile
38%inclusion18 decks47 decks
-4%synergy
Entomb
32%inclusion15 decks47 decks
25%synergy
Void Rend
28%inclusion13 decks47 decks
-7%synergy
Negate
26%inclusion12 decks47 decks
9%synergy
Dovin's Veto
19%inclusion9 decks47 decks
-7%synergy
Frantic Search
17%inclusion8 decks47 decks
-1%synergy
Swan Song
17%inclusion8 decks47 decks
-3%synergy
Anguished Unmaking
17%inclusion8 decks47 decks
-8%synergy
Strix Serenade
15%inclusion7 decks47 decks
11%synergy
Thirst for Meaning
13%inclusion6 decks47 decks
11%synergy
Generous Gift
13%inclusion6 decks47 decks
-1%synergy
Fell the Profane
11%inclusion5 decks47 decks
2%synergy
Brainstorm
11%inclusion5 decks47 decks
-6%synergy
Cabal Ritual
11%inclusion5 decks47 decks
7%synergy
Otherworldly Gaze
11%inclusion5 decks47 decks
8%synergy
Inkshield
11%inclusion5 decks47 decks
1%synergy
Utter End
8.5%inclusion4 decks47 decks
2%synergy
Dawn's Truce
6.4%inclusion3 decks47 decks
2%synergy
Flusterstorm
6.4%inclusion3 decks47 decks
-2%synergy
Disallow
6.4%inclusion3 decks47 decks
3%synergy
Sink into Stupor
6.4%inclusion3 decks47 decks
-6%synergy
Withering Torment
6.4%inclusion3 decks47 decks
5%synergy
Sorceries
Sevinne's Reclamation
47%inclusion22 decks47 decks
38%synergy
Redress Fate
38%inclusion18 decks47 decks
33%synergy
Reanimate
32%inclusion15 decks47 decks
16%synergy
Dance of the Manse
30%inclusion14 decks47 decks
26%synergy
Windfall
28%inclusion13 decks47 decks
14%synergy
Glimpse the Unthinkable
26%inclusion12 decks47 decks
25%synergy
Singularity Rupture
23%inclusion7 decks31 decks
20%synergy
Space-Time Anomaly
19%inclusion6 decks31 decks
18%synergy
Extinguish All Hope
19%inclusion9 decks47 decks
18%synergy
Wrath of God
15%inclusion7 decks47 decks
11%synergy
Resurgent Belief
11%inclusion5 decks47 decks
9%synergy
Unmarked Grave
11%inclusion5 decks47 decks
9%synergy
Buried Alive
11%inclusion5 decks47 decks
7%synergy
Toxic Deluge
11%inclusion5 decks47 decks
-9%synergy
Traumatize
11%inclusion5 decks47 decks
10%synergy
Supreme Verdict
8.5%inclusion4 decks47 decks
-6%synergy
Austere Command
8.5%inclusion4 decks47 decks
0%synergy
Open the Vaults
8.5%inclusion4 decks47 decks
7%synergy
Time Wipe
8.5%inclusion4 decks47 decks
2%synergy
Night's Whisper
8.5%inclusion4 decks47 decks
6%synergy
Damn
8.5%inclusion4 decks47 decks
-12%synergy
Dream Harvest
6.7%inclusion1 decks15 decks
5%synergy
Ponder
6.4%inclusion3 decks47 decks
-3%synergy
Lively Dirge
6.4%inclusion3 decks47 decks
5%synergy
Terminus
6.4%inclusion3 decks47 decks
2%synergy
Idyllic Tutor
6.4%inclusion3 decks47 decks
2%synergy
Cut Your Losses
6.4%inclusion3 decks47 decks
6%synergy
Demonic Counsel
6.4%inclusion3 decks47 decks
5%synergy
Rise of the Dark Realms
6.4%inclusion3 decks47 decks
3%synergy
Utility Artifacts
Mesmeric Orb
28%inclusion13 decks47 decks
27%synergy
Cloud Key
19%inclusion9 decks47 decks
16%synergy
Swiftfoot Boots
15%inclusion7 decks47 decks
-9%synergy
Lightning Greaves
15%inclusion7 decks47 decks
-8%synergy
Pearl Medallion
6.4%inclusion3 decks47 decks
5%synergy
Wayfarer's Bauble
6.4%inclusion3 decks47 decks
-1%synergy
Whip of Erebos
6.4%inclusion3 decks47 decks
4%synergy
Enchantments
Cemetery Tampering
49%inclusion23 decks47 decks
48%synergy
Secret Arcade // Dusty Parlor
49%inclusion23 decks47 decks
44%synergy
Estrid's Invocation
47%inclusion22 decks47 decks
42%synergy
Amphibian Downpour
45%inclusion21 decks47 decks
40%synergy
Seal of Cleansing
45%inclusion21 decks47 decks
43%synergy
Propaganda
45%inclusion21 decks47 decks
17%synergy
Sigil of the Empty Throne
38%inclusion18 decks47 decks
32%synergy
Blind Obedience
38%inclusion18 decks47 decks
26%synergy
Ghostly Prison
34%inclusion16 decks47 decks
12%synergy
Cacophony Unleashed
32%inclusion15 decks47 decks
30%synergy
Out of the Tombs
32%inclusion15 decks47 decks
31%synergy
Stillness in Motion
32%inclusion13 decks41 decks
31%synergy
Dance of the Dead
28%inclusion13 decks47 decks
25%synergy
Starfield of Nyx
28%inclusion13 decks47 decks
24%synergy
Timely Ward
28%inclusion13 decks47 decks
23%synergy
Monologue Tax
28%inclusion13 decks47 decks
21%synergy
The Meathook Massacre
26%inclusion12 decks47 decks
22%synergy
Touch the Spirit Realm
26%inclusion12 decks47 decks
23%synergy
Copy Enchantment
26%inclusion12 decks47 decks
21%synergy
Secrets of the Dead
26%inclusion12 decks47 decks
25%synergy
Polluted Cistern // Dim Oubliette
26%inclusion12 decks47 decks
25%synergy
Greater Auramancy
26%inclusion12 decks47 decks
21%synergy
Darksteel Mutation
23%inclusion11 decks47 decks
17%synergy
The Tale of Tamiyo
23%inclusion11 decks47 decks
23%synergy
Defiled Crypt // Cadaver Lab
23%inclusion11 decks47 decks
23%synergy
Court of Cunning
21%inclusion10 decks47 decks
20%synergy
Extravagant Replication
21%inclusion10 decks47 decks
16%synergy
All That Glitters
21%inclusion10 decks47 decks
13%synergy
Ethereal Armor
21%inclusion10 decks47 decks
17%synergy
Phyrexian Arena
21%inclusion10 decks47 decks
7%synergy
Seal of Removal
21%inclusion10 decks47 decks
21%synergy
Authority of the Consuls
19%inclusion9 decks47 decks
7%synergy
Leyline of Anticipation
19%inclusion9 decks47 decks
15%synergy
Hallowed Haunting
19%inclusion9 decks47 decks
17%synergy
Teval's Judgment
19%inclusion8 decks42 decks
18%synergy
Imprisoned in the Moon
15%inclusion7 decks47 decks
8%synergy
Shark Typhoon
15%inclusion7 decks47 decks
9%synergy
Aura of Silence
15%inclusion7 decks47 decks
12%synergy
Sheltered by Ghosts
15%inclusion7 decks47 decks
12%synergy
One with the Multiverse
13%inclusion6 decks47 decks
8%synergy
Static Prison
13%inclusion6 decks47 decks
12%synergy
Restricted Office // Lecture Hall
13%inclusion6 decks47 decks
11%synergy
Nowhere to Run
13%inclusion6 decks47 decks
12%synergy
Virtue of Persistence
13%inclusion6 decks47 decks
11%synergy
The Eldest Reborn
11%inclusion5 decks47 decks
8%synergy
Omniscience
11%inclusion5 decks47 decks
7%synergy
Bottomless Pool // Locker Room
11%inclusion5 decks47 decks
9%synergy
Oubliette
11%inclusion5 decks47 decks
9%synergy
Solitary Confinement
11%inclusion5 decks47 decks
9%synergy
Unable to Scream
8.5%inclusion4 decks47 decks
7%synergy
Planeswalkers
Jace, the Perfected Mind
6.4%inclusion3 decks47 decks
6%synergy
Utility Lands
Hall of Heliod's Generosity
64%inclusion30 decks47 decks
51%synergy
Bojuka Bog
43%inclusion20 decks47 decks
16%synergy
Cephalid Coliseum
21%inclusion10 decks47 decks
18%synergy
Reliquary Tower
17%inclusion8 decks47 decks
-17%synergy
Otawara, Soaring City
15%inclusion7 decks47 decks
-4%synergy
Halimar Depths
13%inclusion6 decks47 decks
8%synergy
Nephalia Drownyard
11%inclusion5 decks47 decks
10%synergy
Mystic Sanctuary
8.5%inclusion4 decks47 decks
5%synergy
Takenuma, Abandoned Mire
8.5%inclusion4 decks47 decks
2%synergy
Adagia, Windswept Bastion
6.5%inclusion2 decks31 decks
4%synergy
Geier Reach Sanitarium
6.4%inclusion3 decks47 decks
2%synergy
Urborg, Tomb of Yawgmoth
6.4%inclusion3 decks47 decks
-7%synergy
Vault of the Archangel
6.4%inclusion3 decks47 decks
0%synergy
Ishgard, the Holy See
6.1%inclusion2 decks33 decks
3%synergy
Mana Artifacts
Sol Ring
87%inclusion41 decks47 decks
-3%synergy
Arcane Signet
85%inclusion40 decks47 decks
-3%synergy
Talisman of Dominance
60%inclusion28 decks47 decks
10%synergy
Talisman of Progress
57%inclusion27 decks47 decks
14%synergy
Talisman of Hierarchy
57%inclusion27 decks47 decks
13%synergy
Azorius Signet
36%inclusion17 decks47 decks
6%synergy
Fellwar Stone
34%inclusion16 decks47 decks
1%synergy
Orzhov Signet
32%inclusion15 decks47 decks
-1%synergy
Dimir Signet
26%inclusion12 decks47 decks
-5%synergy
Commander's Sphere
13%inclusion6 decks47 decks
-5%synergy
Mind Stone
13%inclusion6 decks47 decks
1%synergy
Chromatic Lantern
6.4%inclusion3 decks47 decks
-7%synergy
Lands
Command Tower
100%inclusion47 decks47 decks
7%synergy
Swamp
96%inclusion45 decks47 decks
4%synergy
Island
96%inclusion45 decks47 decks
3%synergy
Plains
96%inclusion45 decks47 decks
4%synergy
Exotic Orchard
70%inclusion33 decks47 decks
12%synergy
Adarkar Wastes
66%inclusion31 decks47 decks
34%synergy
Caves of Koilos
64%inclusion30 decks47 decks
28%synergy
Arcane Sanctum
64%inclusion30 decks47 decks
10%synergy
Underground River
60%inclusion28 decks47 decks
26%synergy
Isolated Chapel
51%inclusion24 decks47 decks
10%synergy
Glacial Fortress
47%inclusion22 decks47 decks
5%synergy
Watery Grave
47%inclusion22 decks47 decks
-4%synergy
Godless Shrine
45%inclusion21 decks47 decks
-7%synergy
Polluted Delta
43%inclusion20 decks47 decks
5%synergy
Hallowed Fountain
43%inclusion20 decks47 decks
-8%synergy
Prairie Stream
40%inclusion19 decks47 decks
0%synergy
Flooded Strand
40%inclusion19 decks47 decks
2%synergy
Drowned Catacomb
38%inclusion18 decks47 decks
1%synergy
Sunken Hollow
38%inclusion18 decks47 decks
-1%synergy
Valgavoth's Lair
36%inclusion17 decks47 decks
34%synergy
Raffine's Tower
36%inclusion17 decks47 decks
-5%synergy
Evolving Wilds
36%inclusion17 decks47 decks
11%synergy
Marsh Flats
36%inclusion17 decks47 decks
0%synergy
Temple of Silence
34%inclusion16 decks47 decks
15%synergy
Vault of Champions
34%inclusion16 decks47 decks
2%synergy
Terramorphic Expanse
32%inclusion15 decks47 decks
16%synergy
Shadowy Backstreet
32%inclusion15 decks47 decks
19%synergy
Temple of Deceit
32%inclusion15 decks47 decks
15%synergy
Temple of Enlightenment
32%inclusion15 decks47 decks
16%synergy
Meticulous Archive
32%inclusion15 decks47 decks
18%synergy
Undercity Sewers
30%inclusion14 decks47 decks
15%synergy
Sea of Clouds
30%inclusion14 decks47 decks
-5%synergy
Morphic Pool
28%inclusion13 decks47 decks
-6%synergy
Azorius Chancery
26%inclusion12 decks47 decks
12%synergy
Dimir Aqueduct
26%inclusion12 decks47 decks
12%synergy
Floodfarm Verge
26%inclusion12 decks47 decks
14%synergy
Gloomlake Verge
23%inclusion11 decks47 decks
12%synergy
Obscura Storefront
23%inclusion11 decks47 decks
14%synergy
Deserted Beach
21%inclusion10 decks47 decks
0%synergy
Contaminated Landscape
19%inclusion9 decks47 decks
5%synergy
Ash Barrens
19%inclusion9 decks47 decks
8%synergy
Shipwreck Marsh
19%inclusion9 decks47 decks
-1%synergy
Orzhov Basilica
19%inclusion9 decks47 decks
4%synergy
Tainted Isle
15%inclusion7 decks47 decks
9%synergy
Myriad Landscape
15%inclusion7 decks47 decks
7%synergy
Fetid Heath
15%inclusion7 decks47 decks
2%synergy
Tainted Field
15%inclusion7 decks47 decks
8%synergy
Skycloud Expanse
15%inclusion7 decks47 decks
0%synergy
Witch Enchanter
13%inclusion6 decks47 decks
6%synergy
Tundra
13%inclusion6 decks47 decks
-3%synergy
About UsContactPrivacy PolicyTerms of Service
Space Cow MediaArchidektCardsphereCommander SpellbookFABRECSpellvoid
Space Cow MediaArchidektCommander's Herald
Commander SpellbookFABRECSpellvoid
EDHREC is unofficial Fan Content permitted under the Fan Content Policy. Not approved/endorsed by Wizards. Portions of the materials used are property of Wizards of the Coast. ©Wizards of the Coast LLC.
next@15 test