The Master of Keys (Commander) - Budget

The Master of Keys
Rank #316
640decks
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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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Battles
Utility Lands
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The Legend of Kuruk
4.7%inclusion4 decks85 decks
4%synergy
Swampsnare Trap
2.9%inclusion2 decks68 decks
3%synergy
Waterbender Ascension
2.9%inclusion2 decks69 decks
2%synergy
Honest Work
2.3%inclusion2 decks88 decks
2%synergy
Zuko's Conviction
1.6%inclusion1 decks64 decks
1%synergy
High Synergy Cards
Inquisitive Glimmer
71%inclusion454 decks640 decks
63%synergy
Mesa Enchantress
72%inclusion458 decks640 decks
62%synergy
Starfield Mystic
68%inclusion437 decks640 decks
62%synergy
Demon of Fate's Design
63%inclusion400 decks640 decks
57%synergy
Doomwake Giant
62%inclusion398 decks640 decks
56%synergy
Fear of Sleep Paralysis
58%inclusion373 decks640 decks
52%synergy
Sigil of the Empty Throne
57%inclusion362 decks640 decks
51%synergy
Scrabbling Skullcrab
51%inclusion327 decks640 decks
50%synergy
Gravebreaker Lamia
49%inclusion312 decks640 decks
48%synergy
Victor, Valgavoth's Seneschal
47%inclusion299 decks640 decks
45%synergy
Top Cards
Entity Tracker
51%inclusion326 decks640 decks
44%synergy
Secret Arcade // Dusty Parlor
49%inclusion316 decks640 decks
44%synergy
Mirrormade
48%inclusion310 decks640 decks
39%synergy
Redress Fate
48%inclusion310 decks640 decks
42%synergy
Swords to Plowshares
48%inclusion306 decks640 decks
-20%synergy
Sphere of Safety
47%inclusion300 decks640 decks
37%synergy
Ondu Spiritdancer
44%inclusion283 decks640 decks
38%synergy
Moon-Blessed Cleric
43%inclusion273 decks640 decks
38%synergy
Bottomless Pool // Locker Room
42%inclusion270 decks640 decks
40%synergy
Defiled Crypt // Cadaver Lab
41%inclusion260 decks639 decks
40%synergy
Creatures
Fear of Impostors
41%inclusion260 decks640 decks
39%synergy
Soaring Lightbringer
41%inclusion260 decks640 decks
35%synergy
Ghostly Dancers
37%inclusion236 decks640 decks
34%synergy
Aminatou, Veil Piercer
36%inclusion229 decks640 decks
34%synergy
Athreos, Shroud-Veiled
30%inclusion191 decks640 decks
25%synergy
Archetype of Imagination
30%inclusion191 decks640 decks
25%synergy
Skullsnap Nuisance
26%inclusion164 decks640 decks
25%synergy
Archon of Sun's Grace
25%inclusion160 decks640 decks
20%synergy
Zur the Enchanter
24%inclusion156 decks640 decks
19%synergy
Silent Hallcreeper
23%inclusion149 decks640 decks
19%synergy
Fear of Infinity
23%inclusion144 decks640 decks
22%synergy
Sage of Mysteries
23%inclusion144 decks640 decks
22%synergy
Grim Guardian
22%inclusion141 decks640 decks
19%synergy
Balemurk Leech
22%inclusion138 decks640 decks
21%synergy
Ancient Cellarspawn
22%inclusion138 decks640 decks
18%synergy
Mindwrack Harpy
21%inclusion137 decks640 decks
21%synergy
Heliod, the Radiant Dawn
21%inclusion134 decks640 decks
17%synergy
Overlord of the Floodpits
21%inclusion132 decks640 decks
17%synergy
Auramancer
20%inclusion130 decks640 decks
17%synergy
Nightmare Shepherd
20%inclusion129 decks640 decks
18%synergy
Gremlin Tamer
20%inclusion126 decks640 decks
19%synergy
Solemn Simulacrum
19%inclusion122 decks640 decks
4%synergy
Alseid of Life's Bounty
19%inclusion119 decks640 decks
17%synergy
Spirited Companion
15%inclusion99 decks640 decks
13%synergy
Fear of Surveillance
15%inclusion99 decks640 decks
15%synergy
Enduring Curiosity
15%inclusion94 decks640 decks
7%synergy
Starnheim Courser
14%inclusion89 decks640 decks
10%synergy
Nashi, Searcher in the Dark
13%inclusion86 decks640 decks
13%synergy
Zur, Eternal Schemer
13%inclusion82 decks640 decks
10%synergy
Metamorphosis Fanatic
12%inclusion79 decks640 decks
7%synergy
Arvinox, the Mind Flail
12%inclusion76 decks640 decks
10%synergy
Creeping Peeper
11%inclusion71 decks640 decks
11%synergy
Appendage Amalgam
11%inclusion70 decks640 decks
11%synergy
Burnished Hart
10%inclusion65 decks640 decks
7%synergy
Fear of the Dark
10%inclusion64 decks640 decks
10%synergy
Phenomenon Investigators
9.4%inclusion60 decks640 decks
9%synergy
Ghostly Keybearer
9.1%inclusion58 decks640 decks
9%synergy
Millikin
9.1%inclusion58 decks640 decks
8%synergy
Optimistic Scavenger
8.8%inclusion56 decks640 decks
8%synergy
Verge Rangers
8.8%inclusion56 decks640 decks
8%synergy
Fear of Lost Teeth
8.6%inclusion55 decks640 decks
8%synergy
Fear of Failed Tests
8.4%inclusion54 decks640 decks
8%synergy
Dream Eater
8.3%inclusion53 decks640 decks
8%synergy
Fear of Isolation
8.0%inclusion51 decks640 decks
8%synergy
Fear of Immobility
7.5%inclusion48 decks640 decks
7%synergy
Stenn, Paranoid Partisan
6.9%inclusion44 decks640 decks
5%synergy
Underworld Coinsmith
6.4%inclusion41 decks640 decks
5%synergy
Stitcher's Supplier
6.4%inclusion41 decks640 decks
6%synergy
Dreadwing Scavenger
6.3%inclusion35 decks552 decks
6%synergy
Emet-Selch of the Third Seat
6.0%inclusion18 decks302 decks
-4%synergy
Instants
Thirst for Meaning
40%inclusion254 decks640 decks
38%synergy
Otherworldly Gaze
34%inclusion215 decks640 decks
31%synergy
Arcane Denial
30%inclusion192 decks640 decks
10%synergy
Path to Exile
25%inclusion158 decks640 decks
-17%synergy
Counterspell
23%inclusion144 decks640 decks
-19%synergy
Negate
21%inclusion132 decks640 decks
4%synergy
Inkshield
19%inclusion124 decks640 decks
10%synergy
Void Rend
19%inclusion119 decks640 decks
-15%synergy
Utter End
18%inclusion114 decks640 decks
11%synergy
Frantic Search
17%inclusion111 decks640 decks
1%synergy
Brainstorm
16%inclusion105 decks640 decks
-1%synergy
Return to Dust
14%inclusion87 decks640 decks
10%synergy
Telling Time
10%inclusion67 decks640 decks
8%synergy
Fact or Fiction
10%inclusion64 decks640 decks
6%synergy
Don't Make a Sound
8.3%inclusion53 decks637 decks
8%synergy
An Offer You Can't Refuse
8.0%inclusion51 decks640 decks
-18%synergy
Glimmerburst
7.2%inclusion46 decks636 decks
7%synergy
Generous Gift
7.2%inclusion46 decks640 decks
-8%synergy
Get Out
6.4%inclusion41 decks640 decks
6%synergy
Dark Ritual
5.9%inclusion38 decks640 decks
-13%synergy
Dovin's Veto
5.8%inclusion37 decks640 decks
-19%synergy
Murder
5.2%inclusion33 decks640 decks
3%synergy
Sorceries
Time Wipe
32%inclusion202 decks640 decks
24%synergy
Sevinne's Reclamation
28%inclusion182 decks640 decks
20%synergy
Extinguish All Hope
26%inclusion169 decks640 decks
25%synergy
Dance of the Manse
22%inclusion143 decks640 decks
19%synergy
Singularity Rupture
18%inclusion40 decks224 decks
15%synergy
Ponder
15%inclusion96 decks640 decks
6%synergy
Terminus
15%inclusion95 decks640 decks
11%synergy
Resurgent Belief
13%inclusion83 decks640 decks
11%synergy
Read the Bones
13%inclusion83 decks640 decks
9%synergy
Diabolic Vision
10%inclusion67 decks640 decks
8%synergy
Portent
10%inclusion63 decks640 decks
6%synergy
Aminatou's Augury
9.4%inclusion60 decks640 decks
8%synergy
Space-Time Anomaly
8.9%inclusion19 decks213 decks
7%synergy
Austere Command
8.0%inclusion51 decks640 decks
-1%synergy
Final Vengeance
7.2%inclusion46 decks640 decks
7%synergy
Brilliant Restoration
6.6%inclusion42 decks640 decks
4%synergy
Entreat the Angels
6.6%inclusion42 decks640 decks
4%synergy
Demonic Counsel
6.4%inclusion41 decks640 decks
5%synergy
Open the Vaults
6.3%inclusion40 decks640 decks
5%synergy
Windfall
6.1%inclusion39 decks640 decks
-8%synergy
Supreme Verdict
5.9%inclusion38 decks640 decks
-9%synergy
Damn
5.8%inclusion37 decks640 decks
-15%synergy
Glimpse the Unthinkable
5.6%inclusion36 decks640 decks
5%synergy
Utility Artifacts
Keys to the House
15%inclusion95 decks639 decks
15%synergy
Wayfarer's Bauble
12%inclusion74 decks640 decks
3%synergy
Cloud Key
10%inclusion63 decks640 decks
7%synergy
Swiftfoot Boots
9.1%inclusion58 decks640 decks
-15%synergy
Brainstone
6.4%inclusion41 decks640 decks
5%synergy
Perpetual Timepiece
5.5%inclusion35 decks640 decks
5%synergy
Enchantments
Cemetery Tampering
40%inclusion253 decks640 decks
39%synergy
Seal of Cleansing
37%inclusion237 decks640 decks
36%synergy
Ethereal Armor
37%inclusion236 decks640 decks
32%synergy
Timely Ward
36%inclusion229 decks640 decks
31%synergy
Extravagant Replication
34%inclusion219 decks640 decks
29%synergy
Shark Typhoon
34%inclusion218 decks640 decks
28%synergy
Cramped Vents // Access Maze
34%inclusion216 decks640 decks
31%synergy
All That Glitters
33%inclusion213 decks640 decks
24%synergy
Monologue Tax
33%inclusion210 decks640 decks
27%synergy
The Eldest Reborn
30%inclusion192 decks640 decks
27%synergy
Grasp of Fate
30%inclusion191 decks640 decks
24%synergy
Dress Down
29%inclusion187 decks640 decks
27%synergy
Ripples of Undeath
28%inclusion177 decks640 decks
25%synergy
Restricted Office // Lecture Hall
28%inclusion177 decks640 decks
25%synergy
Propaganda
27%inclusion175 decks640 decks
1%synergy
The Tale of Tamiyo
24%inclusion155 decks640 decks
24%synergy
Derelict Attic // Widow's Walk
24%inclusion154 decks637 decks
24%synergy
Meat Locker // Drowned Diner
24%inclusion153 decks637 decks
23%synergy
Central Elevator // Promising Stairs
24%inclusion153 decks640 decks
23%synergy
Cacophony Unleashed
23%inclusion150 decks640 decks
22%synergy
One with the Multiverse
23%inclusion146 decks640 decks
18%synergy
Estrid's Invocation
21%inclusion137 decks640 decks
17%synergy
Imprisoned in the Moon
21%inclusion136 decks640 decks
15%synergy
Seal of Removal
21%inclusion134 decks640 decks
20%synergy
Dazzling Theater // Prop Room
21%inclusion131 decks639 decks
19%synergy
Stillness in Motion
20%inclusion72 decks364 decks
19%synergy
Cast Out
20%inclusion126 decks640 decks
17%synergy
Underwater Tunnel // Slimy Aquarium
19%inclusion124 decks639 decks
19%synergy
Polluted Cistern // Dim Oubliette
19%inclusion120 decks640 decks
18%synergy
Surgical Suite // Hospital Room
18%inclusion117 decks640 decks
18%synergy
Unable to Scream
18%inclusion113 decks640 decks
17%synergy
Spirit-Sister's Call
17%inclusion108 decks640 decks
16%synergy
Secrets of the Dead
17%inclusion108 decks640 decks
17%synergy
Mirror Room // Fractured Realm
17%inclusion107 decks640 decks
14%synergy
Amphibian Downpour
16%inclusion105 decks640 decks
12%synergy
Darksteel Mutation
16%inclusion102 decks640 decks
10%synergy
Ghostly Prison
16%inclusion100 decks640 decks
-6%synergy
Copy Enchantment
15%inclusion99 decks640 decks
11%synergy
Phyrexian Arena
15%inclusion95 decks640 decks
1%synergy
Seal of Doom
14%inclusion92 decks640 decks
14%synergy
Animate Dead
14%inclusion91 decks640 decks
4%synergy
Sheltered by Ghosts
14%inclusion90 decks640 decks
11%synergy
Funeral Room // Awakening Hall
13%inclusion86 decks640 decks
12%synergy
Unholy Annex // Ritual Chamber
13%inclusion83 decks640 decks
12%synergy
Life Insurance
13%inclusion81 decks640 decks
11%synergy
Trapped in the Screen
12%inclusion78 decks640 decks
12%synergy
Soul Snare
11%inclusion71 decks640 decks
11%synergy
Nowhere to Run
11%inclusion70 decks640 decks
10%synergy
Witness Protection
10%inclusion61 decks640 decks
8%synergy
Grand Entryway // Elegant Rotunda
9.1%inclusion58 decks640 decks
9%synergy
Battles
Invasion of Theros
10%inclusion65 decks640 decks
8%synergy
Utility Lands
Bojuka Bog
42%inclusion269 decks640 decks
15%synergy
Hall of Heliod's Generosity
41%inclusion264 decks640 decks
28%synergy
Halimar Depths
25%inclusion160 decks640 decks
20%synergy
Reliquary Tower
9.2%inclusion59 decks640 decks
-24%synergy
Cephalid Coliseum
6.7%inclusion43 decks640 decks
3%synergy
Rogue's Passage
5.5%inclusion35 decks640 decks
-4%synergy
Nephalia Drownyard
5.2%inclusion33 decks640 decks
5%synergy
Mana Artifacts
Arcane Signet
81%inclusion520 decks640 decks
-7%synergy
Sol Ring
80%inclusion510 decks640 decks
-10%synergy
Azorius Signet
59%inclusion379 decks640 decks
26%synergy
Orzhov Signet
57%inclusion366 decks640 decks
22%synergy
Dimir Signet
36%inclusion232 decks640 decks
3%synergy
Mind Stone
36%inclusion230 decks640 decks
23%synergy
Commander's Sphere
35%inclusion222 decks640 decks
15%synergy
Talisman of Dominance
30%inclusion189 decks640 decks
-19%synergy
Talisman of Progress
27%inclusion170 decks640 decks
-16%synergy
Talisman of Hierarchy
23%inclusion145 decks640 decks
-20%synergy
Fellwar Stone
18%inclusion115 decks640 decks
-16%synergy
Lands
Island
99%inclusion634 decks640 decks
7%synergy
Swamp
98%inclusion630 decks640 decks
7%synergy
Plains
98%inclusion629 decks640 decks
7%synergy
Command Tower
89%inclusion569 decks640 decks
-3%synergy
Arcane Sanctum
78%inclusion497 decks640 decks
23%synergy
Evolving Wilds
57%inclusion368 decks640 decks
32%synergy
Caves of Koilos
56%inclusion360 decks640 decks
21%synergy
Temple of Enlightenment
56%inclusion357 decks640 decks
39%synergy
Terramorphic Expanse
56%inclusion356 decks640 decks
38%synergy
Temple of Silence
55%inclusion350 decks640 decks
35%synergy
Temple of Deceit
53%inclusion336 decks640 decks
34%synergy
Adarkar Wastes
51%inclusion328 decks640 decks
21%synergy
Obscura Storefront
48%inclusion308 decks640 decks
37%synergy
Dimir Aqueduct
46%inclusion292 decks640 decks
31%synergy
Azorius Chancery
45%inclusion288 decks640 decks
30%synergy
Orzhov Basilica
45%inclusion285 decks640 decks
28%synergy
Exotic Orchard
43%inclusion275 decks640 decks
-15%synergy
Underground River
42%inclusion269 decks640 decks
10%synergy
Tainted Field
41%inclusion264 decks640 decks
34%synergy
Tainted Isle
40%inclusion255 decks640 decks
33%synergy
Prairie Stream
40%inclusion253 decks640 decks
-1%synergy
Sunken Hollow
35%inclusion222 decks640 decks
-5%synergy
Ash Barrens
32%inclusion205 decks640 decks
21%synergy
Glacial Fortress
30%inclusion193 decks640 decks
-9%synergy
Contaminated Landscape
29%inclusion186 decks640 decks
14%synergy
Isolated Chapel
27%inclusion171 decks640 decks
-11%synergy
Thriving Isle
23%inclusion150 decks640 decks
19%synergy
Thriving Heath
23%inclusion147 decks640 decks
18%synergy
Thriving Moor
23%inclusion144 decks640 decks
18%synergy
Valgavoth's Lair
20%inclusion126 decks640 decks
17%synergy
Drowned Catacomb
17%inclusion108 decks640 decks
-18%synergy
Skycloud Expanse
16%inclusion105 decks640 decks
2%synergy
Darkwater Catacombs
16%inclusion104 decks640 decks
2%synergy
Port Town
15%inclusion98 decks640 decks
-2%synergy
Choked Estuary
14%inclusion92 decks640 decks
-2%synergy
Path of Ancestry
14%inclusion88 decks640 decks
-14%synergy
Shineshadow Snarl
13%inclusion81 decks640 decks
2%synergy
Myriad Landscape
13%inclusion80 decks640 decks
3%synergy
Irrigated Farmland
8.1%inclusion52 decks640 decks
1%synergy
Desolate Mire
7.5%inclusion48 decks640 decks
2%synergy
Tranquil Cove
7.3%inclusion47 decks640 decks
1%synergy
Scoured Barrens
7.3%inclusion47 decks640 decks
1%synergy
Glasswing Grace
7.2%inclusion46 decks640 decks
4%synergy
Abandoned Campground
7.0%inclusion45 decks640 decks
6%synergy
Neglected Manor
6.7%inclusion43 decks640 decks
6%synergy
Fetid Pools
6.6%inclusion42 decks640 decks
0%synergy
Murky Sewer
6.3%inclusion40 decks640 decks
6%synergy
Dismal Backwater
6.1%inclusion39 decks640 decks
0%synergy
Fetid Heath
5.0%inclusion32 decks640 decks
-6%synergy
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