The Master of Keys (Commander) - Upgraded Control

The Master of Keys
Rank #304
47decks
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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
Mana Artifacts
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Ripples of Undeath
77%inclusion36 decks47 decks
74%synergy
Inquisitive Glimmer
79%inclusion37 decks47 decks
72%synergy
Entity Tracker
72%inclusion34 decks47 decks
66%synergy
Gravebreaker Lamia
66%inclusion31 decks47 decks
65%synergy
Dress Down
66%inclusion31 decks47 decks
64%synergy
Starfield Mystic
68%inclusion32 decks47 decks
62%synergy
Amphibian Downpour
64%inclusion30 decks47 decks
59%synergy
Animate Dead
68%inclusion32 decks47 decks
59%synergy
Demon of Fate's Design
62%inclusion29 decks47 decks
56%synergy
Fear of Impostors
55%inclusion26 decks47 decks
54%synergy
Top Cards
Mystic Remora
62%inclusion29 decks47 decks
41%synergy
Mesa Enchantress
60%inclusion28 decks47 decks
51%synergy
Doomwake Giant
60%inclusion28 decks47 decks
54%synergy
Necromancy
55%inclusion26 decks47 decks
51%synergy
Swords to Plowshares
55%inclusion26 decks47 decks
-12%synergy
Scrabbling Skullcrab
53%inclusion25 decks47 decks
52%synergy
Grasp of Fate
51%inclusion24 decks47 decks
45%synergy
Overlord of the Floodpits
51%inclusion24 decks47 decks
48%synergy
Overlord of the Balemurk
49%inclusion23 decks47 decks
47%synergy
An Offer You Can't Refuse
47%inclusion22 decks47 decks
19%synergy
Game Changers
Smothering Tithe
36%inclusion17 decks47 decks
6%synergy
Rhystic Study
28%inclusion13 decks47 decks
-3%synergy
Farewell
15%inclusion7 decks47 decks
3%synergy
Gifts Ungiven
13%inclusion6 decks47 decks
10%synergy
Enlightened Tutor
11%inclusion5 decks47 decks
-8%synergy
Demonic Tutor
8.5%inclusion4 decks47 decks
-12%synergy
Consecrated Sphinx
6.4%inclusion3 decks47 decks
0%synergy
Intuition
6.4%inclusion3 decks47 decks
5%synergy
Cyclonic Rift
6.4%inclusion3 decks47 decks
-16%synergy
Creatures
Fear of Sleep Paralysis
45%inclusion21 decks47 decks
40%synergy
Zur, Eternal Schemer
45%inclusion21 decks47 decks
41%synergy
Ondu Spiritdancer
38%inclusion18 decks47 decks
32%synergy
Victor, Valgavoth's Seneschal
32%inclusion15 decks47 decks
30%synergy
Heliod, the Radiant Dawn
32%inclusion15 decks47 decks
28%synergy
Silent Hallcreeper
28%inclusion13 decks47 decks
23%synergy
Zur the Enchanter
28%inclusion13 decks47 decks
23%synergy
Sage of Mysteries
23%inclusion11 decks47 decks
23%synergy
Grim Guardian
23%inclusion11 decks47 decks
21%synergy
Ghostly Dancers
23%inclusion11 decks47 decks
21%synergy
Archon of Sun's Grace
21%inclusion10 decks47 decks
17%synergy
Lotho, Corrupt Shirriff
19%inclusion9 decks47 decks
2%synergy
Stenn, Paranoid Partisan
17%inclusion8 decks47 decks
16%synergy
Overlord of the Mistmoors
17%inclusion8 decks47 decks
15%synergy
Abdel Adrian, Gorion's Ward
17%inclusion8 decks47 decks
15%synergy
Enduring Curiosity
15%inclusion7 decks47 decks
7%synergy
Nashi, Searcher in the Dark
15%inclusion7 decks47 decks
14%synergy
Ledger Shredder
15%inclusion7 decks47 decks
6%synergy
Valley Floodcaller
13%inclusion6 decks47 decks
9%synergy
Moon-Blessed Cleric
13%inclusion6 decks47 decks
8%synergy
Ancient Cellarspawn
13%inclusion6 decks47 decks
10%synergy
Hullbreaker Horror
13%inclusion6 decks47 decks
7%synergy
Mindwrack Harpy
13%inclusion6 decks47 decks
12%synergy
Witch Enchanter
11%inclusion5 decks47 decks
4%synergy
Esper Sentinel
11%inclusion5 decks47 decks
-16%synergy
Hedron Crab
11%inclusion5 decks47 decks
10%synergy
Angel of Suffering
11%inclusion5 decks47 decks
10%synergy
Balemurk Leech
11%inclusion5 decks47 decks
10%synergy
Starnheim Courser
8.5%inclusion4 decks47 decks
5%synergy
Doom Whisperer
8.5%inclusion4 decks47 decks
7%synergy
Soaring Lightbringer
8.5%inclusion4 decks47 decks
4%synergy
Skullsnap Nuisance
8.5%inclusion4 decks47 decks
8%synergy
Laboratory Maniac
8.5%inclusion4 decks47 decks
5%synergy
Abhorrent Oculus
8.5%inclusion4 decks47 decks
8%synergy
Aminatou, Veil Piercer
8.5%inclusion4 decks47 decks
7%synergy
Alseid of Life's Bounty
8.5%inclusion4 decks47 decks
7%synergy
Fear of Infinity
6.4%inclusion3 decks47 decks
6%synergy
High Fae Trickster
6.4%inclusion3 decks47 decks
2%synergy
Lurrus of the Dream-Den
6.4%inclusion3 decks47 decks
5%synergy
Knight of the White Orchid
6.4%inclusion3 decks47 decks
2%synergy
Athreos, Shroud-Veiled
6.4%inclusion3 decks47 decks
2%synergy
Archetype of Imagination
6.4%inclusion3 decks47 decks
2%synergy
Neerdiv, Devious Diver
6.4%inclusion3 decks47 decks
6%synergy
Toxrill, the Corrosive
6.4%inclusion3 decks47 decks
4%synergy
Mirror-Mad Phantasm
6.4%inclusion3 decks47 decks
6%synergy
Eiganjo Dynastorian
6.3%inclusion1 decks16 decks
5%synergy
Instants
Counterspell
38%inclusion18 decks47 decks
-4%synergy
Arcane Denial
36%inclusion17 decks47 decks
16%synergy
Entomb
32%inclusion15 decks47 decks
25%synergy
Swan Song
30%inclusion14 decks47 decks
10%synergy
Dovin's Veto
26%inclusion12 decks47 decks
-1%synergy
Path to Exile
21%inclusion10 decks47 decks
-21%synergy
Negate
19%inclusion9 decks47 decks
3%synergy
Void Rend
19%inclusion9 decks47 decks
-16%synergy
Dark Ritual
17%inclusion8 decks47 decks
-3%synergy
Sink into Stupor
17%inclusion8 decks47 decks
4%synergy
Inkshield
15%inclusion7 decks47 decks
5%synergy
Fell the Profane
13%inclusion6 decks47 decks
4%synergy
Mana Drain
13%inclusion6 decks47 decks
-4%synergy
Anguished Unmaking
13%inclusion6 decks47 decks
-13%synergy
Thirst for Meaning
11%inclusion5 decks47 decks
9%synergy
Generous Gift
11%inclusion5 decks47 decks
-3%synergy
Brainstorm
8.5%inclusion4 decks47 decks
-8%synergy
Otherworldly Gaze
8.5%inclusion4 decks47 decks
6%synergy
Fact or Fiction
6.4%inclusion3 decks47 decks
3%synergy
Strix Serenade
6.4%inclusion3 decks47 decks
3%synergy
Flusterstorm
6.4%inclusion3 decks47 decks
-1%synergy
Disallow
6.4%inclusion3 decks47 decks
3%synergy
Faithful Mending
6.4%inclusion3 decks47 decks
3%synergy
Waterlogged Teachings
6.4%inclusion3 decks47 decks
2%synergy
Consult the Star Charts
5.0%inclusion2 decks40 decks
4%synergy
Sorceries
Sevinne's Reclamation
43%inclusion20 decks47 decks
34%synergy
Extinguish All Hope
23%inclusion11 decks47 decks
22%synergy
Redress Fate
21%inclusion10 decks47 decks
16%synergy
Dance of the Manse
21%inclusion10 decks47 decks
18%synergy
Resurgent Belief
19%inclusion9 decks47 decks
17%synergy
Glimpse the Unthinkable
19%inclusion9 decks47 decks
19%synergy
Singularity Rupture
18%inclusion7 decks40 decks
15%synergy
Windfall
17%inclusion8 decks47 decks
4%synergy
Idyllic Tutor
17%inclusion8 decks47 decks
13%synergy
Reanimate
15%inclusion7 decks47 decks
-1%synergy
Supreme Verdict
13%inclusion6 decks47 decks
-2%synergy
Wrath of God
13%inclusion6 decks47 decks
9%synergy
Austere Command
11%inclusion5 decks47 decks
2%synergy
Time Wipe
11%inclusion5 decks47 decks
4%synergy
Toxic Deluge
11%inclusion5 decks47 decks
-9%synergy
Space-Time Anomaly
10%inclusion4 decks40 decks
8%synergy
Buried Alive
8.5%inclusion4 decks47 decks
4%synergy
Damn
8.5%inclusion4 decks47 decks
-12%synergy
Traumatize
8.5%inclusion4 decks47 decks
8%synergy
Ponder
6.4%inclusion3 decks47 decks
-3%synergy
Open the Vaults
6.4%inclusion3 decks47 decks
5%synergy
Cut Your Losses
6.4%inclusion3 decks47 decks
6%synergy
Demonic Counsel
6.4%inclusion3 decks47 decks
5%synergy
Beseech the Mirror
6.4%inclusion3 decks47 decks
2%synergy
Breach the Multiverse
6.4%inclusion3 decks47 decks
4%synergy
Utility Artifacts
Mesmeric Orb
32%inclusion15 decks47 decks
31%synergy
Lightning Greaves
21%inclusion10 decks47 decks
-2%synergy
Swiftfoot Boots
11%inclusion5 decks47 decks
-13%synergy
Cloud Key
8.5%inclusion4 decks47 decks
5%synergy
Crucible of Worlds
8.5%inclusion4 decks47 decks
8%synergy
Perpetual Timepiece
6.4%inclusion3 decks47 decks
6%synergy
Whip of Erebos
6.4%inclusion3 decks47 decks
4%synergy
Palantír of Orthanc
6.4%inclusion3 decks47 decks
5%synergy
Enchantments
Blind Obedience
47%inclusion22 decks47 decks
35%synergy
Mirrormade
47%inclusion22 decks47 decks
37%synergy
Estrid's Invocation
47%inclusion22 decks47 decks
42%synergy
Cemetery Tampering
47%inclusion22 decks47 decks
46%synergy
Seal of Cleansing
45%inclusion21 decks47 decks
43%synergy
Secret Arcade // Dusty Parlor
45%inclusion21 decks47 decks
40%synergy
Ghostly Prison
45%inclusion21 decks47 decks
22%synergy
Sphere of Safety
43%inclusion20 decks47 decks
33%synergy
Sigil of the Empty Throne
40%inclusion19 decks47 decks
35%synergy
Dance of the Dead
38%inclusion18 decks47 decks
36%synergy
Starfield of Nyx
38%inclusion18 decks47 decks
34%synergy
Propaganda
38%inclusion18 decks47 decks
9%synergy
The Tale of Tamiyo
36%inclusion17 decks47 decks
36%synergy
Cacophony Unleashed
32%inclusion15 decks47 decks
30%synergy
Imprisoned in the Moon
32%inclusion15 decks47 decks
25%synergy
Touch the Spirit Realm
32%inclusion15 decks47 decks
30%synergy
Solitary Confinement
32%inclusion15 decks47 decks
30%synergy
Darksteel Mutation
30%inclusion14 decks47 decks
24%synergy
Out of the Tombs
30%inclusion14 decks47 decks
29%synergy
Copy Enchantment
30%inclusion14 decks47 decks
25%synergy
Sheltered by Ghosts
30%inclusion14 decks47 decks
27%synergy
Seal of Removal
30%inclusion14 decks47 decks
29%synergy
Authority of the Consuls
28%inclusion13 decks47 decks
14%synergy
Static Prison
28%inclusion13 decks47 decks
27%synergy
Ethereal Armor
26%inclusion12 decks47 decks
21%synergy
Hallowed Haunting
26%inclusion12 decks47 decks
23%synergy
The Meathook Massacre
23%inclusion11 decks47 decks
20%synergy
Leyline of Anticipation
23%inclusion11 decks47 decks
19%synergy
Oubliette
23%inclusion11 decks47 decks
22%synergy
Nowhere to Run
23%inclusion11 decks47 decks
22%synergy
Greater Auramancy
23%inclusion11 decks47 decks
19%synergy
Aura of Silence
23%inclusion11 decks47 decks
20%synergy
Stillness in Motion
23%inclusion10 decks44 decks
22%synergy
Timely Ward
21%inclusion10 decks47 decks
16%synergy
Extravagant Replication
19%inclusion9 decks47 decks
14%synergy
Monologue Tax
19%inclusion9 decks47 decks
13%synergy
Defiled Crypt // Cadaver Lab
19%inclusion9 decks47 decks
18%synergy
Land Tax
17%inclusion8 decks47 decks
11%synergy
Trouble in Pairs
17%inclusion8 decks47 decks
12%synergy
One with the Multiverse
15%inclusion7 decks47 decks
10%synergy
Shark Typhoon
15%inclusion7 decks47 decks
9%synergy
All That Glitters
15%inclusion7 decks47 decks
7%synergy
Teval's Judgment
14%inclusion6 decks44 decks
13%synergy
Court of Cunning
13%inclusion6 decks47 decks
12%synergy
Glasswing Grace
13%inclusion6 decks47 decks
10%synergy
Tinybones Joins Up
13%inclusion6 decks47 decks
12%synergy
Utter Insignificance
13%inclusion6 decks47 decks
12%synergy
Secrets of the Dead
13%inclusion6 decks47 decks
12%synergy
Black Market Connections
13%inclusion6 decks47 decks
-2%synergy
Phyrexian Arena
13%inclusion6 decks47 decks
-1%synergy
Planeswalkers
Ashiok, Dream Render
6.4%inclusion3 decks47 decks
5%synergy
Utility Lands
Hall of Heliod's Generosity
64%inclusion30 decks47 decks
51%synergy
Bojuka Bog
40%inclusion19 decks47 decks
14%synergy
Otawara, Soaring City
21%inclusion10 decks47 decks
2%synergy
Cephalid Coliseum
19%inclusion9 decks47 decks
16%synergy
Takenuma, Abandoned Mire
17%inclusion8 decks47 decks
11%synergy
Eiganjo, Seat of the Empire
11%inclusion5 decks47 decks
6%synergy
Reliquary Tower
8.5%inclusion4 decks47 decks
-25%synergy
Rogue's Passage
8.5%inclusion4 decks47 decks
-1%synergy
Urza's Saga
6.4%inclusion3 decks47 decks
-5%synergy
Nephalia Drownyard
6.4%inclusion3 decks47 decks
6%synergy
Geier Reach Sanitarium
6.4%inclusion3 decks47 decks
2%synergy
Temple of the False God
6.4%inclusion3 decks47 decks
-2%synergy
Mana Artifacts
Sol Ring
83%inclusion39 decks47 decks
-7%synergy
Arcane Signet
81%inclusion38 decks47 decks
-7%synergy
Talisman of Progress
57%inclusion27 decks47 decks
13%synergy
Talisman of Dominance
51%inclusion24 decks47 decks
1%synergy
Talisman of Hierarchy
51%inclusion24 decks47 decks
6%synergy
Azorius Signet
34%inclusion16 decks47 decks
4%synergy
Fellwar Stone
32%inclusion15 decks47 decks
-1%synergy
Orzhov Signet
32%inclusion15 decks47 decks
0%synergy
Dimir Signet
23%inclusion11 decks47 decks
-7%synergy
Mind Stone
8.5%inclusion4 decks47 decks
-3%synergy
Chromatic Lantern
6.4%inclusion3 decks47 decks
-6%synergy
Lands
Command Tower
100%inclusion47 decks47 decks
7%synergy
Swamp
94%inclusion44 decks47 decks
2%synergy
Island
94%inclusion44 decks47 decks
0%synergy
Plains
91%inclusion43 decks47 decks
-1%synergy
Caves of Koilos
66%inclusion31 decks47 decks
30%synergy
Exotic Orchard
64%inclusion30 decks47 decks
5%synergy
Adarkar Wastes
64%inclusion30 decks47 decks
31%synergy
Hallowed Fountain
62%inclusion29 decks47 decks
11%synergy
Watery Grave
62%inclusion29 decks47 decks
10%synergy
Underground River
60%inclusion28 decks47 decks
25%synergy
Godless Shrine
57%inclusion27 decks47 decks
6%synergy
Flooded Strand
55%inclusion26 decks47 decks
17%synergy
Undercity Sewers
53%inclusion25 decks47 decks
38%synergy
Polluted Delta
53%inclusion25 decks47 decks
15%synergy
Meticulous Archive
49%inclusion23 decks47 decks
35%synergy
Arcane Sanctum
47%inclusion22 decks47 decks
-7%synergy
Marsh Flats
45%inclusion21 decks47 decks
9%synergy
Shadowy Backstreet
43%inclusion20 decks47 decks
30%synergy
Isolated Chapel
43%inclusion20 decks47 decks
1%synergy
Vault of Champions
38%inclusion18 decks47 decks
6%synergy
Prairie Stream
36%inclusion17 decks47 decks
-4%synergy
Sea of Clouds
36%inclusion17 decks47 decks
1%synergy
Drowned Catacomb
36%inclusion17 decks47 decks
-2%synergy
Deserted Beach
36%inclusion17 decks47 decks
15%synergy
Glacial Fortress
34%inclusion16 decks47 decks
-9%synergy
Morphic Pool
34%inclusion16 decks47 decks
1%synergy
Sunken Hollow
34%inclusion16 decks47 decks
-6%synergy
Shipwreck Marsh
32%inclusion15 decks47 decks
11%synergy
Floodfarm Verge
32%inclusion15 decks47 decks
21%synergy
Raffine's Tower
30%inclusion14 decks47 decks
-11%synergy
Evolving Wilds
30%inclusion14 decks47 decks
5%synergy
Gloomlake Verge
30%inclusion14 decks47 decks
19%synergy
Terramorphic Expanse
28%inclusion13 decks47 decks
12%synergy
Underground Sea
26%inclusion12 decks47 decks
10%synergy
Scrubland
26%inclusion12 decks47 decks
10%synergy
Tundra
23%inclusion11 decks47 decks
7%synergy
Misty Rainforest
23%inclusion11 decks47 decks
13%synergy
Contaminated Landscape
23%inclusion11 decks47 decks
10%synergy
Valgavoth's Lair
23%inclusion11 decks47 decks
21%synergy
Windswept Heath
21%inclusion10 decks47 decks
12%synergy
Ash Barrens
21%inclusion10 decks47 decks
11%synergy
Obscura Storefront
21%inclusion10 decks47 decks
12%synergy
Temple of Silence
21%inclusion10 decks47 decks
3%synergy
City of Brass
21%inclusion10 decks47 decks
6%synergy
Azorius Chancery
19%inclusion9 decks47 decks
6%synergy
Temple of Deceit
19%inclusion9 decks47 decks
2%synergy
Temple of Enlightenment
19%inclusion9 decks47 decks
4%synergy
Scalding Tarn
19%inclusion9 decks47 decks
9%synergy
Bloodstained Mire
19%inclusion9 decks47 decks
9%synergy
Fetid Heath
17%inclusion8 decks47 decks
3%synergy
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