The Master of Keys (Commander) - Budget Combo

The Master of Keys
Rank #308
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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.
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Animate Dead
71%inclusion15 decks21 decks
62%synergy
Entity Tracker
67%inclusion14 decks21 decks
60%synergy
Sevinne's Reclamation
62%inclusion13 decks21 decks
53%synergy
Gravebreaker Lamia
52%inclusion11 decks21 decks
51%synergy
Scrabbling Skullcrab
52%inclusion11 decks21 decks
51%synergy
Fear of Impostors
52%inclusion11 decks21 decks
51%synergy
Starfield Mystic
57%inclusion12 decks21 decks
51%synergy
Dress Down
52%inclusion11 decks21 decks
50%synergy
Grim Guardian
52%inclusion11 decks21 decks
50%synergy
Ripples of Undeath
52%inclusion11 decks21 decks
50%synergy
Top Cards
Inquisitive Glimmer
57%inclusion12 decks21 decks
50%synergy
Mesa Enchantress
57%inclusion12 decks21 decks
48%synergy
Grasp of Fate
52%inclusion11 decks21 decks
46%synergy
Mirrormade
52%inclusion11 decks21 decks
43%synergy
Swords to Plowshares
52%inclusion11 decks21 decks
-16%synergy
Singularity Rupture
50%inclusion4 decks8 decks
48%synergy
Touch the Spirit Realm
48%inclusion10 decks21 decks
45%synergy
Amphibian Downpour
48%inclusion10 decks21 decks
43%synergy
Monologue Tax
48%inclusion10 decks21 decks
41%synergy
Abdel Adrian, Gorion's Ward
48%inclusion10 decks21 decks
46%synergy
Game Changers
Thassa's Oracle
19%inclusion4 decks21 decks
10%synergy
Gifts Ungiven
10%inclusion2 decks21 decks
7%synergy
Narset, Parter of Veils
10%inclusion2 decks21 decks
6%synergy
Creatures
Doomwake Giant
43%inclusion9 decks21 decks
37%synergy
Demon of Fate's Design
38%inclusion8 decks21 decks
33%synergy
Soaring Lightbringer
38%inclusion8 decks21 decks
33%synergy
Ondu Spiritdancer
38%inclusion8 decks21 decks
32%synergy
Archon of Sun's Grace
33%inclusion7 decks21 decks
29%synergy
Victor, Valgavoth's Seneschal
33%inclusion7 decks21 decks
31%synergy
Moon-Blessed Cleric
29%inclusion6 decks21 decks
24%synergy
Laboratory Maniac
29%inclusion6 decks21 decks
25%synergy
Ghostly Dancers
29%inclusion6 decks21 decks
26%synergy
Overlord of the Floodpits
24%inclusion5 decks21 decks
20%synergy
Heliod, the Radiant Dawn
24%inclusion5 decks21 decks
20%synergy
Zur, Eternal Schemer
24%inclusion5 decks21 decks
21%synergy
Leonin Relic-Warder
24%inclusion5 decks21 decks
24%synergy
Enduring Curiosity
24%inclusion5 decks21 decks
16%synergy
Fear of Sleep Paralysis
24%inclusion5 decks21 decks
18%synergy
Gremlin Tamer
24%inclusion5 decks21 decks
23%synergy
Zur the Enchanter
24%inclusion5 decks21 decks
19%synergy
Summon: Yojimbo
22%inclusion2 decks9 decks
21%synergy
Overlord of the Mistmoors
19%inclusion4 decks21 decks
17%synergy
Sage of Mysteries
19%inclusion4 decks21 decks
19%synergy
Overlord of the Balemurk
19%inclusion4 decks21 decks
17%synergy
Alseid of Life's Bounty
19%inclusion4 decks21 decks
18%synergy
Millikin
19%inclusion4 decks21 decks
18%synergy
Athreos, Shroud-Veiled
19%inclusion4 decks21 decks
15%synergy
Balemurk Leech
19%inclusion4 decks21 decks
18%synergy
Nashi, Searcher in the Dark
19%inclusion4 decks21 decks
19%synergy
Nightmare Shepherd
19%inclusion4 decks21 decks
17%synergy
Aminatou, Veil Piercer
19%inclusion4 decks21 decks
18%synergy
Mindwrack Harpy
19%inclusion4 decks21 decks
19%synergy
Starnheim Courser
14%inclusion3 decks21 decks
10%synergy
Lotho, Corrupt Shirriff
14%inclusion3 decks21 decks
-3%synergy
Hedron Crab
14%inclusion3 decks21 decks
14%synergy
Spirited Companion
14%inclusion3 decks21 decks
12%synergy
Fear of Surveillance
14%inclusion3 decks21 decks
14%synergy
Archetype of Imagination
14%inclusion3 decks21 decks
10%synergy
Hydroelectric Specimen
14%inclusion3 decks21 decks
11%synergy
Auramancer
14%inclusion3 decks21 decks
11%synergy
Hullbreaker Horror
14%inclusion3 decks21 decks
8%synergy
O'aka, Traveling Merchant
11%inclusion1 decks9 decks
10%synergy
The Warring Triad
11%inclusion1 decks9 decks
11%synergy
High Fae Trickster
11%inclusion2 decks19 decks
6%synergy
Solemn Simulacrum
10%inclusion2 decks21 decks
-5%synergy
Bringer of the Last Gift
10%inclusion2 decks21 decks
9%synergy
Razaketh, the Foulblooded
10%inclusion2 decks21 decks
7%synergy
Protean Thaumaturge
10%inclusion2 decks21 decks
9%synergy
Rune-Scarred Demon
10%inclusion2 decks21 decks
8%synergy
Hoarding Broodlord
10%inclusion2 decks21 decks
8%synergy
Vile Mutilator
10%inclusion2 decks21 decks
9%synergy
Phyrexian Metamorph
10%inclusion2 decks21 decks
1%synergy
Shroudstomper
10%inclusion2 decks21 decks
9%synergy
Instants
Frantic Search
43%inclusion9 decks21 decks
25%synergy
Counterspell
43%inclusion9 decks21 decks
1%synergy
Thirst for Meaning
38%inclusion8 decks21 decks
37%synergy
Arcane Denial
38%inclusion8 decks21 decks
18%synergy
Path to Exile
33%inclusion7 decks21 decks
-9%synergy
An Offer You Can't Refuse
29%inclusion6 decks21 decks
2%synergy
Dark Ritual
29%inclusion6 decks21 decks
9%synergy
Negate
29%inclusion6 decks21 decks
12%synergy
Brainstorm
29%inclusion6 decks21 decks
11%synergy
Dovin's Veto
24%inclusion5 decks21 decks
-2%synergy
Otherworldly Gaze
24%inclusion5 decks21 decks
22%synergy
Dispel
19%inclusion4 decks21 decks
16%synergy
Sink into Stupor
19%inclusion4 decks21 decks
6%synergy
Fact or Fiction
14%inclusion3 decks21 decks
11%synergy
Waterlogged Teachings
14%inclusion3 decks21 decks
10%synergy
Refute
11%inclusion2 decks19 decks
8%synergy
Sacrifice
10%inclusion2 decks21 decks
9%synergy
Muddle the Mixture
10%inclusion2 decks21 decks
6%synergy
Disdainful Stroke
10%inclusion2 decks21 decks
9%synergy
Drown in the Loch
10%inclusion2 decks21 decks
8%synergy
Shred Memory
10%inclusion2 decks21 decks
9%synergy
Epiphany at the Drownyard
10%inclusion2 decks21 decks
9%synergy
Curate
10%inclusion2 decks21 decks
9%synergy
Lim-Dûl's Vault
10%inclusion2 decks21 decks
6%synergy
Consider
10%inclusion2 decks21 decks
7%synergy
Razorgrass Ambush
10%inclusion2 decks21 decks
9%synergy
Darkblast
10%inclusion2 decks21 decks
9%synergy
Perplex
10%inclusion2 decks21 decks
8%synergy
Demonic Consultation
10%inclusion2 decks21 decks
1%synergy
Get Out
10%inclusion2 decks21 decks
9%synergy
Faithful Mending
10%inclusion2 decks21 decks
6%synergy
Hostile Negotiations
10%inclusion2 decks21 decks
8%synergy
Mana Leak
10%inclusion2 decks21 decks
8%synergy
Utter End
10%inclusion2 decks21 decks
3%synergy
Borne Upon a Wind
10%inclusion2 decks21 decks
5%synergy
Spell Pierce
10%inclusion2 decks21 decks
7%synergy
Inkshield
10%inclusion2 decks21 decks
0%synergy
Live or Die
10%inclusion2 decks21 decks
9%synergy
Miscast
10%inclusion2 decks21 decks
8%synergy
Generous Gift
10%inclusion2 decks21 decks
-5%synergy
Sorceries
Unmarked Grave
29%inclusion6 decks21 decks
27%synergy
Buried Alive
29%inclusion6 decks21 decks
24%synergy
Space-Time Anomaly
25%inclusion2 decks8 decks
23%synergy
Windfall
24%inclusion5 decks21 decks
10%synergy
Demonic Counsel
24%inclusion5 decks21 decks
23%synergy
Dance of the Manse
24%inclusion5 decks21 decks
20%synergy
Time Wipe
19%inclusion4 decks21 decks
12%synergy
Extinguish All Hope
19%inclusion4 decks21 decks
17%synergy
Redress Fate
19%inclusion4 decks21 decks
13%synergy
Austere Command
14%inclusion3 decks21 decks
5%synergy
Lively Dirge
14%inclusion3 decks21 decks
13%synergy
Diabolic Tutor
14%inclusion3 decks21 decks
10%synergy
Reanimate
14%inclusion3 decks21 decks
-2%synergy
Final Parting
14%inclusion3 decks21 decks
14%synergy
Toxic Deluge
14%inclusion3 decks21 decks
-5%synergy
Unburial Rites
14%inclusion3 decks21 decks
11%synergy
Blasphemous Edict
11%inclusion2 decks19 decks
8%synergy
Ponder
10%inclusion2 decks21 decks
0%synergy
Resurgent Belief
10%inclusion2 decks21 decks
7%synergy
Open the Vaults
10%inclusion2 decks21 decks
8%synergy
Open the Armory
10%inclusion2 decks21 decks
6%synergy
Dread Return
10%inclusion2 decks21 decks
7%synergy
Glimpse the Unthinkable
10%inclusion2 decks21 decks
9%synergy
Vindicate
10%inclusion2 decks21 decks
-1%synergy
Cleansing Meditation
10%inclusion2 decks21 decks
9%synergy
Final Vengeance
10%inclusion2 decks21 decks
9%synergy
Brilliant Restoration
10%inclusion2 decks21 decks
8%synergy
Living Death
10%inclusion2 decks21 decks
5%synergy
Damn
10%inclusion2 decks21 decks
-11%synergy
Necromantic Selection
10%inclusion2 decks21 decks
9%synergy
Pilfered Plans
10%inclusion2 decks21 decks
9%synergy
Traumatize
10%inclusion2 decks21 decks
9%synergy
Utility Artifacts
Wishclaw Talisman
29%inclusion6 decks21 decks
20%synergy
Cloud Key
14%inclusion3 decks21 decks
11%synergy
Mesmeric Orb
10%inclusion2 decks21 decks
8%synergy
Wayfarer's Bauble
10%inclusion2 decks21 decks
2%synergy
Keys to the House
10%inclusion2 decks21 decks
9%synergy
Grimoire of the Dead
10%inclusion2 decks21 decks
9%synergy
Wand of Vertebrae
10%inclusion2 decks21 decks
10%synergy
Enchantments
Stillness in Motion
45%inclusion5 decks11 decks
45%synergy
Sigil of the Empty Throne
43%inclusion9 decks21 decks
37%synergy
Seal of Cleansing
43%inclusion9 decks21 decks
41%synergy
Necromancy
43%inclusion9 decks21 decks
38%synergy
Mystic Remora
43%inclusion9 decks21 decks
22%synergy
Sphere of Safety
43%inclusion9 decks21 decks
33%synergy
Propaganda
43%inclusion9 decks21 decks
15%synergy
Secret Arcade // Dusty Parlor
38%inclusion8 decks21 decks
33%synergy
Ghostly Prison
38%inclusion8 decks21 decks
16%synergy
Darksteel Mutation
33%inclusion7 decks21 decks
27%synergy
Phyrexian Arena
33%inclusion7 decks21 decks
19%synergy
Blind Obedience
29%inclusion6 decks21 decks
16%synergy
Estrid's Invocation
29%inclusion6 decks21 decks
24%synergy
The Tale of Tamiyo
29%inclusion6 decks21 decks
28%synergy
Cemetery Tampering
29%inclusion6 decks21 decks
28%synergy
Cacophony Unleashed
24%inclusion5 decks21 decks
22%synergy
Court of Cunning
24%inclusion5 decks21 decks
23%synergy
All That Glitters
24%inclusion5 decks21 decks
15%synergy
Static Prison
24%inclusion5 decks21 decks
23%synergy
Enchanted Evening
24%inclusion5 decks21 decks
22%synergy
Chthonian Nightmare
24%inclusion5 decks21 decks
23%synergy
Imprisoned in the Moon
19%inclusion4 decks21 decks
12%synergy
The Eldest Reborn
19%inclusion4 decks21 decks
17%synergy
Defiled Crypt // Cadaver Lab
19%inclusion4 decks21 decks
18%synergy
Timely Ward
19%inclusion4 decks21 decks
14%synergy
Sheltered by Ghosts
19%inclusion4 decks21 decks
16%synergy
Nowhere to Run
19%inclusion4 decks21 decks
18%synergy
Seal of Removal
19%inclusion4 decks21 decks
18%synergy
One with the Multiverse
14%inclusion3 decks21 decks
10%synergy
Cramped Vents // Access Maze
14%inclusion3 decks21 decks
12%synergy
Seal of Doom
14%inclusion3 decks21 decks
14%synergy
Extravagant Replication
14%inclusion3 decks21 decks
9%synergy
Unable to Scream
14%inclusion3 decks21 decks
13%synergy
Tinybones Joins Up
14%inclusion3 decks21 decks
13%synergy
Starfield of Nyx
14%inclusion3 decks21 decks
10%synergy
Out of Time
14%inclusion3 decks21 decks
13%synergy
Copy Enchantment
14%inclusion3 decks21 decks
10%synergy
Shark Typhoon
14%inclusion3 decks21 decks
8%synergy
Restricted Office // Lecture Hall
14%inclusion3 decks21 decks
12%synergy
Oblivion Ring
14%inclusion3 decks21 decks
13%synergy
Into the Pit
14%inclusion3 decks21 decks
14%synergy
Hesitation
10%inclusion2 decks21 decks
9%synergy
Dance of the Dead
10%inclusion2 decks21 decks
7%synergy
King Narfi's Betrayal
10%inclusion2 decks21 decks
9%synergy
Trapped in the Screen
10%inclusion2 decks21 decks
9%synergy
Curious Obsession
10%inclusion2 decks21 decks
9%synergy
Spirit-Sister's Call
10%inclusion2 decks21 decks
8%synergy
Out of the Tombs
10%inclusion2 decks21 decks
9%synergy
Chronic Flooding
10%inclusion2 decks21 decks
9%synergy
The Restoration of Eiganjo
10%inclusion2 decks21 decks
9%synergy
Battles
Invasion of Theros
10%inclusion2 decks21 decks
8%synergy
Utility Lands
Bojuka Bog
57%inclusion12 decks21 decks
30%synergy
Hall of Heliod's Generosity
48%inclusion10 decks21 decks
35%synergy
Cephalid Coliseum
19%inclusion4 decks21 decks
15%synergy
Shambling Vent
14%inclusion3 decks21 decks
14%synergy
Echoing Deeps
10%inclusion2 decks21 decks
9%synergy
Emergence Zone
10%inclusion2 decks21 decks
7%synergy
Nephalia Drownyard
10%inclusion2 decks21 decks
9%synergy
Drownyard Temple
10%inclusion2 decks21 decks
9%synergy
Dakmor Salvage
10%inclusion2 decks21 decks
9%synergy
Mana Artifacts
Arcane Signet
95%inclusion20 decks21 decks
7%synergy
Sol Ring
95%inclusion20 decks21 decks
5%synergy
Talisman of Progress
71%inclusion15 decks21 decks
28%synergy
Talisman of Hierarchy
62%inclusion13 decks21 decks
18%synergy
Talisman of Dominance
52%inclusion11 decks21 decks
3%synergy
Orzhov Signet
48%inclusion10 decks21 decks
14%synergy
Fellwar Stone
43%inclusion9 decks21 decks
9%synergy
Azorius Signet
43%inclusion9 decks21 decks
11%synergy
Dimir Signet
38%inclusion8 decks21 decks
6%synergy
Commander's Sphere
29%inclusion6 decks21 decks
10%synergy
Mind Stone
24%inclusion5 decks21 decks
11%synergy
Silumgar Monument
10%inclusion2 decks21 decks
9%synergy
Azorius Keyrune
10%inclusion2 decks21 decks
9%synergy
Ojutai Monument
10%inclusion2 decks21 decks
9%synergy
Lands
Swamp
100%inclusion21 decks21 decks
9%synergy
Island
100%inclusion21 decks21 decks
7%synergy
Plains
100%inclusion21 decks21 decks
8%synergy
Command Tower
86%inclusion18 decks21 decks
-7%synergy
Arcane Sanctum
81%inclusion17 decks21 decks
26%synergy
Caves of Koilos
71%inclusion15 decks21 decks
36%synergy
Adarkar Wastes
67%inclusion14 decks21 decks
35%synergy
Exotic Orchard
62%inclusion13 decks21 decks
3%synergy
Glacial Fortress
52%inclusion11 decks21 decks
11%synergy
Underground River
52%inclusion11 decks21 decks
19%synergy
Contaminated Landscape
48%inclusion10 decks21 decks
33%synergy
Isolated Chapel
48%inclusion10 decks21 decks
8%synergy
Terramorphic Expanse
43%inclusion9 decks21 decks
26%synergy
Prairie Stream
43%inclusion9 decks21 decks
2%synergy
Temple of Silence
43%inclusion9 decks21 decks
24%synergy
Tainted Field
38%inclusion8 decks21 decks
31%synergy
Sunken Hollow
38%inclusion8 decks21 decks
-2%synergy
Obscura Storefront
38%inclusion8 decks21 decks
28%synergy
Evolving Wilds
38%inclusion8 decks21 decks
13%synergy
Dimir Aqueduct
33%inclusion7 decks21 decks
20%synergy
Valgavoth's Lair
33%inclusion7 decks21 decks
31%synergy
Temple of Enlightenment
33%inclusion7 decks21 decks
17%synergy
Drowned Catacomb
33%inclusion7 decks21 decks
-3%synergy
Tainted Isle
29%inclusion6 decks21 decks
22%synergy
Azorius Chancery
29%inclusion6 decks21 decks
14%synergy
Temple of Deceit
29%inclusion6 decks21 decks
11%synergy
Darkwater Catacombs
29%inclusion6 decks21 decks
14%synergy
Ash Barrens
29%inclusion6 decks21 decks
18%synergy
Orzhov Basilica
29%inclusion6 decks21 decks
13%synergy
Choked Estuary
24%inclusion5 decks21 decks
7%synergy
Myriad Landscape
19%inclusion4 decks21 decks
11%synergy
Skycloud Expanse
19%inclusion4 decks21 decks
4%synergy
Sink into Stupor
19%inclusion4 decks21 decks
6%synergy
Irrigated Farmland
14%inclusion3 decks21 decks
7%synergy
Port Town
14%inclusion3 decks21 decks
-3%synergy
Hydroelectric Specimen
14%inclusion3 decks21 decks
11%synergy
Waterlogged Teachings
14%inclusion3 decks21 decks
10%synergy
Path of Ancestry
14%inclusion3 decks21 decks
-13%synergy
Floodfarm Verge
14%inclusion3 decks21 decks
3%synergy
Undercity Sewers
10%inclusion2 decks21 decks
-5%synergy
Godless Shrine
10%inclusion2 decks21 decks
-41%synergy
Desolate Mire
10%inclusion2 decks21 decks
3%synergy
Spire of Industry
10%inclusion2 decks21 decks
1%synergy
Razorgrass Ambush
10%inclusion2 decks21 decks
9%synergy
Thriving Isle
10%inclusion2 decks21 decks
5%synergy
River of Tears
10%inclusion2 decks21 decks
7%synergy
Thriving Moor
10%inclusion2 decks21 decks
5%synergy
Shineshadow Snarl
10%inclusion2 decks21 decks
-1%synergy
Deserted Beach
10%inclusion2 decks21 decks
-11%synergy
Hallowed Fountain
10%inclusion2 decks21 decks
-40%synergy
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