The Master of Keys (Commander) - Budget Upgraded

The Master of Keys
Rank #301
61decks
As CommanderAs CardAverage DeckDecksView Precon
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Budget
Any$$$$
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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Battles
Utility Lands
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Inquisitive Glimmer
72%inclusion44 decks61 decks
65%synergy
Mesa Enchantress
69%inclusion42 decks61 decks
60%synergy
Starfield Mystic
66%inclusion40 decks61 decks
59%synergy
Entity Tracker
61%inclusion37 decks61 decks
55%synergy
Gravebreaker Lamia
56%inclusion34 decks61 decks
55%synergy
Fear of Sleep Paralysis
59%inclusion36 decks61 decks
54%synergy
Scrabbling Skullcrab
54%inclusion33 decks61 decks
53%synergy
Secret Arcade // Dusty Parlor
57%inclusion35 decks61 decks
53%synergy
Demon of Fate's Design
56%inclusion34 decks61 decks
50%synergy
Doomwake Giant
56%inclusion34 decks61 decks
50%synergy
Top Cards
Victor, Valgavoth's Seneschal
48%inclusion29 decks61 decks
46%synergy
Mirrormade
46%inclusion28 decks61 decks
36%synergy
Sphere of Safety
44%inclusion27 decks61 decks
35%synergy
Seal of Cleansing
44%inclusion27 decks61 decks
43%synergy
Cemetery Tampering
43%inclusion26 decks61 decks
42%synergy
Ondu Spiritdancer
43%inclusion26 decks61 decks
37%synergy
Redress Fate
43%inclusion26 decks61 decks
37%synergy
Ghostly Dancers
41%inclusion25 decks61 decks
39%synergy
Swords to Plowshares
41%inclusion25 decks61 decks
-27%synergy
Sigil of the Empty Throne
39%inclusion24 decks61 decks
34%synergy
Creatures
Fear of Impostors
38%inclusion23 decks61 decks
36%synergy
Silent Hallcreeper
38%inclusion23 decks61 decks
33%synergy
Moon-Blessed Cleric
38%inclusion23 decks61 decks
33%synergy
Grim Guardian
33%inclusion20 decks61 decks
30%synergy
Zur the Enchanter
31%inclusion19 decks61 decks
26%synergy
Sage of Mysteries
30%inclusion18 decks61 decks
29%synergy
Aminatou, Veil Piercer
25%inclusion15 decks61 decks
23%synergy
Zur, Eternal Schemer
25%inclusion15 decks61 decks
21%synergy
Archon of Sun's Grace
23%inclusion14 decks61 decks
19%synergy
Overlord of the Floodpits
23%inclusion14 decks61 decks
20%synergy
Soaring Lightbringer
23%inclusion14 decks61 decks
19%synergy
Archetype of Imagination
23%inclusion14 decks61 decks
18%synergy
Eiganjo Dynastorian
22%inclusion4 decks18 decks
21%synergy
Balemurk Leech
21%inclusion13 decks61 decks
21%synergy
Gremlin Tamer
21%inclusion13 decks61 decks
20%synergy
Ancient Cellarspawn
21%inclusion13 decks61 decks
19%synergy
Alseid of Life's Bounty
21%inclusion13 decks61 decks
20%synergy
Mindwrack Harpy
20%inclusion12 decks61 decks
19%synergy
Auramancer
18%inclusion11 decks61 decks
15%synergy
Skullsnap Nuisance
18%inclusion11 decks61 decks
18%synergy
Athreos, Shroud-Veiled
18%inclusion11 decks61 decks
14%synergy
Enduring Curiosity
18%inclusion11 decks61 decks
10%synergy
Stitcher's Supplier
16%inclusion10 decks61 decks
16%synergy
Heliod, the Radiant Dawn
16%inclusion10 decks61 decks
13%synergy
Overlord of the Mistmoors
16%inclusion10 decks61 decks
14%synergy
Fear of Infinity
15%inclusion9 decks61 decks
14%synergy
Overlord of the Balemurk
13%inclusion8 decks61 decks
11%synergy
Abdel Adrian, Gorion's Ward
13%inclusion8 decks61 decks
11%synergy
Solemn Simulacrum
11%inclusion7 decks61 decks
-1%synergy
Stenn, Paranoid Partisan
11%inclusion7 decks61 decks
10%synergy
Hydroelectric Specimen
11%inclusion7 decks61 decks
9%synergy
Deranged Assistant
11%inclusion7 decks61 decks
11%synergy
Nashi, Searcher in the Dark
11%inclusion7 decks61 decks
11%synergy
Millikin
11%inclusion7 decks61 decks
11%synergy
Stinkweed Imp
11%inclusion7 decks61 decks
11%synergy
Metamorphosis Fanatic
10%inclusion6 decks61 decks
6%synergy
Agent of Erebos
10%inclusion6 decks61 decks
9%synergy
Appendage Amalgam
10%inclusion6 decks61 decks
10%synergy
Tameshi, Reality Architect
10%inclusion6 decks61 decks
9%synergy
Ghostly Keybearer
10%inclusion6 decks61 decks
10%synergy
Summon: Ixion
8.9%inclusion4 decks45 decks
9%synergy
Hedron Crab
8.2%inclusion5 decks61 decks
8%synergy
Sram, Senior Edificer
8.2%inclusion5 decks61 decks
3%synergy
Spirited Companion
8.2%inclusion5 decks61 decks
6%synergy
Twilight Diviner
8.0%inclusion2 decks25 decks
7%synergy
Starnheim Courser
6.6%inclusion4 decks61 decks
3%synergy
Optimistic Scavenger
6.6%inclusion4 decks61 decks
6%synergy
Fear of Isolation
6.6%inclusion4 decks61 decks
6%synergy
Boggart Trawler
6.6%inclusion4 decks61 decks
3%synergy
Doom Whisperer
6.6%inclusion4 decks61 decks
5%synergy
Instants
Counterspell
30%inclusion18 decks61 decks
-13%synergy
Thirst for Meaning
28%inclusion17 decks61 decks
26%synergy
Arcane Denial
26%inclusion16 decks61 decks
6%synergy
Otherworldly Gaze
23%inclusion14 decks61 decks
21%synergy
Frantic Search
21%inclusion13 decks61 decks
2%synergy
Path to Exile
21%inclusion13 decks61 decks
-21%synergy
Negate
18%inclusion11 decks61 decks
2%synergy
Inkshield
18%inclusion11 decks61 decks
8%synergy
Void Rend
15%inclusion9 decks61 decks
-20%synergy
Utter End
13%inclusion8 decks61 decks
7%synergy
Brainstorm
11%inclusion7 decks61 decks
-5%synergy
Fact or Fiction
11%inclusion7 decks61 decks
8%synergy
Get Out
11%inclusion7 decks61 decks
11%synergy
Don't Make a Sound
11%inclusion7 decks61 decks
11%synergy
Return to Dust
10%inclusion6 decks61 decks
7%synergy
Muddle the Mixture
6.6%inclusion4 decks61 decks
3%synergy
Dovin's Veto
6.6%inclusion4 decks61 decks
-20%synergy
An Offer You Can't Refuse
6.6%inclusion4 decks61 decks
-21%synergy
Confounding Riddle
6.6%inclusion4 decks61 decks
6%synergy
Murder
6.6%inclusion4 decks61 decks
5%synergy
Stroke of Midnight
6.6%inclusion4 decks61 decks
-1%synergy
Glimmerburst
6.6%inclusion4 decks61 decks
6%synergy
Silverquill Charm
5.0%inclusion1 decks20 decks
5%synergy
Sorceries
Sevinne's Reclamation
36%inclusion22 decks61 decks
27%synergy
Extinguish All Hope
26%inclusion16 decks61 decks
25%synergy
Time Wipe
23%inclusion14 decks61 decks
17%synergy
Resurgent Belief
16%inclusion10 decks61 decks
15%synergy
Dance of the Manse
16%inclusion10 decks61 decks
13%synergy
Singularity Rupture
14%inclusion6 decks42 decks
12%synergy
Read the Bones
11%inclusion7 decks61 decks
8%synergy
Ponder
10%inclusion6 decks61 decks
1%synergy
Buried Alive
10%inclusion6 decks61 decks
6%synergy
Space-Time Anomaly
10%inclusion4 decks42 decks
8%synergy
Open the Vaults
8.2%inclusion5 decks61 decks
7%synergy
Demonic Counsel
8.2%inclusion5 decks61 decks
7%synergy
Brilliant Restoration
8.2%inclusion5 decks61 decks
7%synergy
Stock Up
6.8%inclusion4 decks59 decks
4%synergy
Supreme Verdict
6.6%inclusion4 decks61 decks
-8%synergy
Windfall
6.6%inclusion4 decks61 decks
-6%synergy
Lively Dirge
6.6%inclusion4 decks61 decks
5%synergy
Cut Your Losses
6.6%inclusion4 decks61 decks
6%synergy
Glimpse the Unthinkable
6.6%inclusion4 decks61 decks
6%synergy
Traumatize
6.6%inclusion4 decks61 decks
6%synergy
Night's Whisper
6.6%inclusion4 decks61 decks
4%synergy
Final Vengeance
6.6%inclusion4 decks61 decks
6%synergy
Back for Seconds
6.6%inclusion4 decks61 decks
6%synergy
Utility Artifacts
Keys to the House
18%inclusion11 decks61 decks
18%synergy
Cloud Key
13%inclusion8 decks61 decks
10%synergy
Perpetual Timepiece
10%inclusion6 decks61 decks
9%synergy
Mesmeric Orb
6.6%inclusion4 decks61 decks
5%synergy
Wayfarer's Bauble
6.6%inclusion4 decks61 decks
-0%synergy
Mystery Key
6.6%inclusion4 decks61 decks
6%synergy
Swiftfoot Boots
6.6%inclusion4 decks61 decks
-18%synergy
Enchantments
Grasp of Fate
36%inclusion22 decks61 decks
30%synergy
Amphibian Downpour
36%inclusion22 decks61 decks
31%synergy
All That Glitters
34%inclusion21 decks61 decks
26%synergy
Defiled Crypt // Cadaver Lab
34%inclusion21 decks61 decks
34%synergy
Ripples of Undeath
33%inclusion20 decks61 decks
30%synergy
The Eldest Reborn
33%inclusion20 decks61 decks
30%synergy
The Tale of Tamiyo
33%inclusion20 decks61 decks
32%synergy
Monologue Tax
33%inclusion20 decks61 decks
26%synergy
Cramped Vents // Access Maze
31%inclusion19 decks61 decks
29%synergy
Dress Down
31%inclusion19 decks61 decks
29%synergy
Central Elevator // Promising Stairs
31%inclusion19 decks61 decks
31%synergy
Cacophony Unleashed
28%inclusion17 decks61 decks
26%synergy
Propaganda
28%inclusion17 decks61 decks
-2%synergy
Seal of Removal
28%inclusion17 decks61 decks
27%synergy
Ethereal Armor
28%inclusion17 decks61 decks
23%synergy
Darksteel Mutation
26%inclusion16 decks61 decks
20%synergy
Restricted Office // Lecture Hall
26%inclusion16 decks61 decks
24%synergy
Bottomless Pool // Locker Room
26%inclusion16 decks61 decks
24%synergy
Animate Dead
26%inclusion16 decks61 decks
17%synergy
Polluted Cistern // Dim Oubliette
25%inclusion15 decks61 decks
24%synergy
Extravagant Replication
23%inclusion14 decks61 decks
18%synergy
Dazzling Theater // Prop Room
23%inclusion14 decks61 decks
22%synergy
Stillness in Motion
21%inclusion12 decks56 decks
21%synergy
One with the Multiverse
21%inclusion13 decks61 decks
17%synergy
Imprisoned in the Moon
21%inclusion13 decks61 decks
15%synergy
Copy Enchantment
21%inclusion13 decks61 decks
16%synergy
Timely Ward
21%inclusion13 decks61 decks
16%synergy
Secrets of the Dead
21%inclusion13 decks61 decks
21%synergy
Mystic Remora
20%inclusion12 decks61 decks
-1%synergy
Funeral Room // Awakening Hall
20%inclusion12 decks61 decks
19%synergy
Mirror Room // Fractured Realm
20%inclusion12 decks61 decks
18%synergy
Estrid's Invocation
20%inclusion12 decks61 decks
15%synergy
Nowhere to Run
18%inclusion11 decks61 decks
17%synergy
Unholy Annex // Ritual Chamber
18%inclusion11 decks61 decks
17%synergy
Derelict Attic // Widow's Walk
16%inclusion10 decks61 decks
16%synergy
Unable to Scream
15%inclusion9 decks61 decks
14%synergy
Utter Insignificance
15%inclusion9 decks61 decks
14%synergy
Surgical Suite // Hospital Room
15%inclusion9 decks61 decks
14%synergy
Meat Locker // Drowned Diner
15%inclusion9 decks61 decks
14%synergy
Eaten by Piranhas
15%inclusion9 decks61 decks
14%synergy
Phyrexian Arena
15%inclusion9 decks61 decks
1%synergy
Shark Typhoon
15%inclusion9 decks61 decks
9%synergy
Grievous Wound
13%inclusion8 decks61 decks
12%synergy
Soul Snare
13%inclusion8 decks61 decks
13%synergy
Ghostly Prison
13%inclusion8 decks61 decks
-10%synergy
Search for Azcanta
13%inclusion8 decks61 decks
12%synergy
Underwater Tunnel // Slimy Aquarium
11%inclusion7 decks61 decks
11%synergy
Authority of the Consuls
11%inclusion7 decks61 decks
-2%synergy
Grand Entryway // Elegant Rotunda
11%inclusion7 decks61 decks
11%synergy
Cast Out
11%inclusion7 decks61 decks
9%synergy
Battles
Invasion of Theros
8.2%inclusion5 decks61 decks
7%synergy
Utility Lands
Hall of Heliod's Generosity
56%inclusion34 decks61 decks
43%synergy
Bojuka Bog
36%inclusion22 decks61 decks
9%synergy
Halimar Depths
20%inclusion12 decks61 decks
15%synergy
Reliquary Tower
13%inclusion8 decks61 decks
-21%synergy
Rogue's Passage
11%inclusion7 decks61 decks
2%synergy
Cephalid Coliseum
10%inclusion6 decks61 decks
6%synergy
Dakmor Salvage
8.2%inclusion5 decks61 decks
8%synergy
Mana Artifacts
Arcane Signet
77%inclusion47 decks61 decks
-11%synergy
Sol Ring
77%inclusion47 decks61 decks
-13%synergy
Azorius Signet
54%inclusion33 decks61 decks
25%synergy
Orzhov Signet
51%inclusion31 decks61 decks
20%synergy
Talisman of Hierarchy
36%inclusion22 decks61 decks
-9%synergy
Talisman of Progress
33%inclusion20 decks61 decks
-12%synergy
Talisman of Dominance
33%inclusion20 decks61 decks
-17%synergy
Dimir Signet
30%inclusion18 decks61 decks
-0%synergy
Fellwar Stone
25%inclusion15 decks61 decks
-8%synergy
Commander's Sphere
21%inclusion13 decks61 decks
4%synergy
Mind Stone
20%inclusion12 decks61 decks
8%synergy
Chromatic Lantern
8.2%inclusion5 decks61 decks
-4%synergy
Lands
Swamp
100%inclusion61 decks61 decks
8%synergy
Island
100%inclusion61 decks61 decks
7%synergy
Plains
100%inclusion61 decks61 decks
8%synergy
Command Tower
87%inclusion53 decks61 decks
-6%synergy
Arcane Sanctum
72%inclusion44 decks61 decks
18%synergy
Caves of Koilos
61%inclusion37 decks61 decks
25%synergy
Adarkar Wastes
52%inclusion32 decks61 decks
20%synergy
Azorius Chancery
49%inclusion30 decks61 decks
36%synergy
Temple of Enlightenment
49%inclusion30 decks61 decks
34%synergy
Orzhov Basilica
49%inclusion30 decks61 decks
35%synergy
Underground River
48%inclusion29 decks61 decks
12%synergy
Temple of Silence
48%inclusion29 decks61 decks
30%synergy
Isolated Chapel
46%inclusion28 decks61 decks
4%synergy
Terramorphic Expanse
43%inclusion26 decks61 decks
27%synergy
Dimir Aqueduct
43%inclusion26 decks61 decks
30%synergy
Glacial Fortress
41%inclusion25 decks61 decks
-3%synergy
Temple of Deceit
39%inclusion24 decks61 decks
23%synergy
Evolving Wilds
39%inclusion24 decks61 decks
15%synergy
Exotic Orchard
38%inclusion23 decks61 decks
-21%synergy
Prairie Stream
36%inclusion22 decks61 decks
-5%synergy
Obscura Storefront
36%inclusion22 decks61 decks
27%synergy
Sunken Hollow
33%inclusion20 decks61 decks
-7%synergy
Drowned Catacomb
31%inclusion19 decks61 decks
-8%synergy
Ash Barrens
31%inclusion19 decks61 decks
20%synergy
Valgavoth's Lair
31%inclusion19 decks61 decks
29%synergy
Contaminated Landscape
30%inclusion18 decks61 decks
16%synergy
Tainted Field
30%inclusion18 decks61 decks
23%synergy
Tainted Isle
23%inclusion14 decks61 decks
17%synergy
Skycloud Expanse
23%inclusion14 decks61 decks
8%synergy
Darkwater Catacombs
21%inclusion13 decks61 decks
6%synergy
Path of Ancestry
20%inclusion12 decks61 decks
-8%synergy
Thriving Heath
20%inclusion12 decks61 decks
16%synergy
Thriving Isle
18%inclusion11 decks61 decks
14%synergy
Dismal Backwater
18%inclusion11 decks61 decks
12%synergy
Tranquil Cove
16%inclusion10 decks61 decks
10%synergy
Thriving Moor
16%inclusion10 decks61 decks
12%synergy
Abandoned Campground
15%inclusion9 decks61 decks
14%synergy
Fetid Heath
15%inclusion9 decks61 decks
1%synergy
Port Town
15%inclusion9 decks61 decks
-2%synergy
Scoured Barrens
15%inclusion9 decks61 decks
9%synergy
Myriad Landscape
13%inclusion8 decks61 decks
6%synergy
Shineshadow Snarl
13%inclusion8 decks61 decks
2%synergy
Choked Estuary
13%inclusion8 decks61 decks
-3%synergy
Hydroelectric Specimen
11%inclusion7 decks61 decks
9%synergy
Desolate Mire
11%inclusion7 decks61 decks
4%synergy
Murky Sewer
11%inclusion7 decks61 decks
11%synergy
Neglected Manor
11%inclusion7 decks61 decks
11%synergy
Shattered Sanctum
10%inclusion6 decks61 decks
-8%synergy
Floodfarm Verge
10%inclusion6 decks61 decks
-1%synergy
Idyllic Beachfront
8.2%inclusion5 decks61 decks
4%synergy
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