The Master of Keys (Commander) - Expensive Sagas

The Master of Keys
Rank #302
3decks
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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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Battles
Planeswalkers
Utility Lands
Mana Artifacts
Lands
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Smothering Tithe
100%inclusion3 decks3 decks
70%synergy
Rhystic Study
100%inclusion3 decks3 decks
69%synergy
The One Ring
67%inclusion2 decks3 decks
54%synergy
Demonic Tutor
67%inclusion2 decks3 decks
46%synergy
Fierce Guardianship
67%inclusion2 decks3 decks
46%synergy
Imperial Seal
33%inclusion1 decks3 decks
26%synergy
Thassa's Oracle
33%inclusion1 decks3 decks
24%synergy
Opposition Agent
33%inclusion1 decks3 decks
25%synergy
Ancient Tomb
33%inclusion1 decks3 decks
21%synergy
Bolas's Citadel
33%inclusion1 decks3 decks
24%synergy
Creatures
Mesa Enchantress
67%inclusion2 decks3 decks
58%synergy
Abdel Adrian, Gorion's Ward
67%inclusion2 decks3 decks
65%synergy
Voice of Victory
50%inclusion1 decks2 decks
42%synergy
Summon: Leviathan
50%inclusion1 decks2 decks
50%synergy
Summon: Bahamut
50%inclusion1 decks2 decks
49%synergy
Summon: Ixion
50%inclusion1 decks2 decks
50%synergy
Summon: Valefor
50%inclusion1 decks2 decks
50%synergy
Summon: Yojimbo
50%inclusion1 decks2 decks
49%synergy
Lotho, Corrupt Shirriff
33%inclusion1 decks3 decks
16%synergy
Thassa, Deep-Dwelling
33%inclusion1 decks3 decks
31%synergy
Demon of Fate's Design
33%inclusion1 decks3 decks
28%synergy
Thrull Parasite
33%inclusion1 decks3 decks
33%synergy
Esper Sentinel
33%inclusion1 decks3 decks
6%synergy
Ashiok's Reaper
33%inclusion1 decks3 decks
33%synergy
The Second Doctor
33%inclusion1 decks3 decks
33%synergy
Talion, the Kindly Lord
33%inclusion1 decks3 decks
26%synergy
Jace's Archivist
33%inclusion1 decks3 decks
32%synergy
Doomwake Giant
33%inclusion1 decks3 decks
28%synergy
Hex Parasite
33%inclusion1 decks3 decks
32%synergy
Heliod, the Radiant Dawn
33%inclusion1 decks3 decks
30%synergy
Grand Abolisher
33%inclusion1 decks3 decks
19%synergy
Entity Tracker
33%inclusion1 decks3 decks
27%synergy
Ranger-Captain of Eos
33%inclusion1 decks3 decks
27%synergy
Alseid of Life's Bounty
33%inclusion1 decks3 decks
32%synergy
Clever Impersonator
33%inclusion1 decks3 decks
31%synergy
Zur the Enchanter
33%inclusion1 decks3 decks
28%synergy
Orcish Bowmasters
33%inclusion1 decks3 decks
23%synergy
Vampire Hexmage
33%inclusion1 decks3 decks
33%synergy
Instants
Entomb
67%inclusion2 decks3 decks
60%synergy
Swords to Plowshares
67%inclusion2 decks3 decks
-1%synergy
Mental Misstep
33%inclusion1 decks3 decks
27%synergy
Tainted Pact
33%inclusion1 decks3 decks
27%synergy
Intuition
33%inclusion1 decks3 decks
32%synergy
Mindbreak Trap
33%inclusion1 decks3 decks
27%synergy
Dark Ritual
33%inclusion1 decks3 decks
13%synergy
Gifts Ungiven
33%inclusion1 decks3 decks
31%synergy
Cabal Ritual
33%inclusion1 decks3 decks
30%synergy
Culling the Weak
33%inclusion1 decks3 decks
32%synergy
Mana Drain
33%inclusion1 decks3 decks
16%synergy
Flusterstorm
33%inclusion1 decks3 decks
25%synergy
Silence
33%inclusion1 decks3 decks
23%synergy
Into the Flood Maw
33%inclusion1 decks3 decks
30%synergy
Swan Song
33%inclusion1 decks3 decks
13%synergy
Force of Will
33%inclusion1 decks3 decks
21%synergy
Demonic Consultation
33%inclusion1 decks3 decks
26%synergy
Force of Negation
33%inclusion1 decks3 decks
22%synergy
Enlightened Tutor
33%inclusion1 decks3 decks
15%synergy
Borne Upon a Wind
33%inclusion1 decks3 decks
28%synergy
Cyclonic Rift
33%inclusion1 decks3 decks
11%synergy
Vampiric Tutor
33%inclusion1 decks3 decks
17%synergy
Pact of Negation
33%inclusion1 decks3 decks
26%synergy
Mystical Tutor
33%inclusion1 decks3 decks
23%synergy
Dismember
33%inclusion1 decks3 decks
27%synergy
Sorceries
Space-Time Anomaly
50%inclusion1 decks2 decks
48%synergy
Cabal Therapy
33%inclusion1 decks3 decks
33%synergy
Supreme Verdict
33%inclusion1 decks3 decks
19%synergy
Windfall
33%inclusion1 decks3 decks
20%synergy
Resurgent Belief
33%inclusion1 decks3 decks
31%synergy
Fractured Identity
33%inclusion1 decks3 decks
32%synergy
Wrath of God
33%inclusion1 decks3 decks
30%synergy
Praetor's Grasp
33%inclusion1 decks3 decks
31%synergy
Demonic Counsel
33%inclusion1 decks3 decks
32%synergy
Toxic Deluge
33%inclusion1 decks3 decks
14%synergy
Damn
33%inclusion1 decks3 decks
13%synergy
Beseech the Mirror
33%inclusion1 decks3 decks
29%synergy
Damnation
33%inclusion1 decks3 decks
31%synergy
Traumatize
33%inclusion1 decks3 decks
33%synergy
Dance of the Manse
33%inclusion1 decks3 decks
30%synergy
Utility Artifacts
Mesmeric Orb
33%inclusion1 decks3 decks
32%synergy
Power Conduit
33%inclusion1 decks3 decks
33%synergy
Helm of the Gods
33%inclusion1 decks3 decks
32%synergy
Wishclaw Talisman
33%inclusion1 decks3 decks
26%synergy
Swiftfoot Boots
33%inclusion1 decks3 decks
9%synergy
Lightning Greaves
33%inclusion1 decks3 decks
11%synergy
Enchantments
Mystic Remora
100%inclusion3 decks3 decks
80%synergy
The Meathook Massacre
67%inclusion2 decks3 decks
63%synergy
Dance of the Dead
67%inclusion2 decks3 decks
65%synergy
The Eldest Reborn
67%inclusion2 decks3 decks
64%synergy
Necromancy
67%inclusion2 decks3 decks
62%synergy
Mirrormade
67%inclusion2 decks3 decks
57%synergy
Estrid's Invocation
67%inclusion2 decks3 decks
62%synergy
Sphere of Safety
67%inclusion2 decks3 decks
57%synergy
The Tale of Tamiyo
67%inclusion2 decks3 decks
66%synergy
Animate Dead
67%inclusion2 decks3 decks
57%synergy
Solitary Confinement
67%inclusion2 decks3 decks
65%synergy
Ghostly Prison
67%inclusion2 decks3 decks
44%synergy
Propaganda
67%inclusion2 decks3 decks
38%synergy
Darksteel Mutation
33%inclusion1 decks3 decks
27%synergy
Omen of the Sun
33%inclusion1 decks3 decks
33%synergy
Phyrexian Scriptures
33%inclusion1 decks3 decks
33%synergy
The Birth of Meletis
33%inclusion1 decks3 decks
33%synergy
Tymaret Calls the Dead
33%inclusion1 decks3 decks
33%synergy
Ripples of Undeath
33%inclusion1 decks3 decks
31%synergy
Gadwick's First Duel
33%inclusion1 decks3 decks
33%synergy
Imprisoned in the Moon
33%inclusion1 decks3 decks
27%synergy
Mana Chains
33%inclusion1 decks3 decks
33%synergy
Fall of the Thran
33%inclusion1 decks3 decks
33%synergy
King Narfi's Betrayal
33%inclusion1 decks3 decks
33%synergy
Unable to Scream
33%inclusion1 decks3 decks
32%synergy
Tinybones Joins Up
33%inclusion1 decks3 decks
32%synergy
Compulsion
33%inclusion1 decks3 decks
33%synergy
Elspeth Conquers Death
33%inclusion1 decks3 decks
33%synergy
Omen of the Sea
33%inclusion1 decks3 decks
33%synergy
Illness in the Ranks
33%inclusion1 decks3 decks
33%synergy
Soul Snare
33%inclusion1 decks3 decks
33%synergy
Authority of the Consuls
33%inclusion1 decks3 decks
20%synergy
Steal Enchantment
33%inclusion1 decks3 decks
32%synergy
Blind Obedience
33%inclusion1 decks3 decks
21%synergy
Hopeless Nightmare
33%inclusion1 decks3 decks
33%synergy
The Phasing of Zhalfir
33%inclusion1 decks3 decks
33%synergy
Curse of Death's Hold
33%inclusion1 decks3 decks
33%synergy
Seal of Doom
33%inclusion1 decks3 decks
33%synergy
The Raven's Warning
33%inclusion1 decks3 decks
33%synergy
The Creation of Avacyn
33%inclusion1 decks3 decks
33%synergy
Copy Enchantment
33%inclusion1 decks3 decks
29%synergy
Shark Typhoon
33%inclusion1 decks3 decks
28%synergy
Starfield of Nyx
33%inclusion1 decks3 decks
29%synergy
Michiko's Reign of Truth
33%inclusion1 decks3 decks
33%synergy
Necropotence
33%inclusion1 decks3 decks
27%synergy
The Restoration of Eiganjo
33%inclusion1 decks3 decks
33%synergy
Leyline of Anticipation
33%inclusion1 decks3 decks
29%synergy
Amphibian Downpour
33%inclusion1 decks3 decks
29%synergy
Trial of a Time Lord
33%inclusion1 decks3 decks
33%synergy
Seal of Cleansing
33%inclusion1 decks3 decks
32%synergy
Battles
Invasion of Fiora
33%inclusion1 decks3 decks
33%synergy
Planeswalkers
Teferi, Time Raveler
33%inclusion1 decks3 decks
25%synergy
Utility Lands
Hall of Heliod's Generosity
67%inclusion2 decks3 decks
54%synergy
Bojuka Bog
33%inclusion1 decks3 decks
7%synergy
Minamo, School at Water's Edge
33%inclusion1 decks3 decks
30%synergy
Mystic Sanctuary
33%inclusion1 decks3 decks
30%synergy
Halimar Depths
33%inclusion1 decks3 decks
29%synergy
Urza's Saga
33%inclusion1 decks3 decks
22%synergy
Command Beacon
33%inclusion1 decks3 decks
31%synergy
Takenuma, Abandoned Mire
33%inclusion1 decks3 decks
27%synergy
Reliquary Tower
33%inclusion1 decks3 decks
-1%synergy
Monumental Henge
33%inclusion1 decks3 decks
32%synergy
Cephalid Coliseum
33%inclusion1 decks3 decks
30%synergy
Temple of the False God
33%inclusion1 decks3 decks
25%synergy
Nesting Grounds
33%inclusion1 decks3 decks
32%synergy
Otawara, Soaring City
33%inclusion1 decks3 decks
14%synergy
Mana Artifacts
Arcane Signet
100%inclusion3 decks3 decks
12%synergy
Sol Ring
100%inclusion3 decks3 decks
10%synergy
Talisman of Progress
67%inclusion2 decks3 decks
22%synergy
Talisman of Dominance
67%inclusion2 decks3 decks
17%synergy
Fellwar Stone
67%inclusion2 decks3 decks
34%synergy
Talisman of Hierarchy
67%inclusion2 decks3 decks
22%synergy
Basalt Monolith
33%inclusion1 decks3 decks
31%synergy
Dimir Signet
33%inclusion1 decks3 decks
3%synergy
Orzhov Signet
33%inclusion1 decks3 decks
2%synergy
Azorius Signet
33%inclusion1 decks3 decks
4%synergy
Lands
Command Tower
100%inclusion3 decks3 decks
7%synergy
Swamp
100%inclusion3 decks3 decks
8%synergy
Godless Shrine
100%inclusion3 decks3 decks
48%synergy
Island
100%inclusion3 decks3 decks
7%synergy
Marsh Flats
100%inclusion3 decks3 decks
64%synergy
Hallowed Fountain
100%inclusion3 decks3 decks
49%synergy
Watery Grave
100%inclusion3 decks3 decks
49%synergy
Undercity Sewers
67%inclusion2 decks3 decks
52%synergy
Misty Rainforest
67%inclusion2 decks3 decks
56%synergy
Windswept Heath
67%inclusion2 decks3 decks
57%synergy
Caves of Koilos
67%inclusion2 decks3 decks
31%synergy
Verdant Catacombs
67%inclusion2 decks3 decks
57%synergy
Underground River
67%inclusion2 decks3 decks
32%synergy
Plains
67%inclusion2 decks3 decks
-25%synergy
Arid Mesa
67%inclusion2 decks3 decks
57%synergy
Scalding Tarn
67%inclusion2 decks3 decks
56%synergy
Polluted Delta
67%inclusion2 decks3 decks
29%synergy
City of Brass
67%inclusion2 decks3 decks
51%synergy
Flooded Strand
67%inclusion2 decks3 decks
28%synergy
Bloodstained Mire
67%inclusion2 decks3 decks
56%synergy
Starting Town
50%inclusion1 decks2 decks
46%synergy
Fabled Passage
33%inclusion1 decks3 decks
26%synergy
Terramorphic Expanse
33%inclusion1 decks3 decks
18%synergy
Shadowy Backstreet
33%inclusion1 decks3 decks
21%synergy
Exotic Orchard
33%inclusion1 decks3 decks
-26%synergy
Fetid Heath
33%inclusion1 decks3 decks
20%synergy
Wooded Foothills
33%inclusion1 decks3 decks
33%synergy
Sea of Clouds
33%inclusion1 decks3 decks
-1%synergy
Raffine's Tower
33%inclusion1 decks3 decks
-7%synergy
Orzhov Basilica
33%inclusion1 decks3 decks
19%synergy
Morphic Pool
33%inclusion1 decks3 decks
-0%synergy
Gemstone Caverns
33%inclusion1 decks3 decks
26%synergy
Shattered Sanctum
33%inclusion1 decks3 decks
16%synergy
Meticulous Archive
33%inclusion1 decks3 decks
19%synergy
Mana Confluence
33%inclusion1 decks3 decks
20%synergy
Adarkar Wastes
33%inclusion1 decks3 decks
1%synergy
Nimbus Maze
33%inclusion1 decks3 decks
31%synergy
Mystic Gate
33%inclusion1 decks3 decks
28%synergy
Vault of Champions
33%inclusion1 decks3 decks
1%synergy
Deserted Beach
33%inclusion1 decks3 decks
13%synergy
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