The Master of Keys (Commander) - Lifegain

The Master of Keys
Rank #303
21decks
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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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Exhibition Tidecaller
33%inclusion1 decks3 decks
33%synergy
High Synergy Cards
Ripples of Undeath
48%inclusion10 decks21 decks
45%synergy
Hall of Heliod's Generosity
57%inclusion12 decks21 decks
44%synergy
Secret Arcade // Dusty Parlor
48%inclusion10 decks21 decks
43%synergy
Demon of Fate's Design
48%inclusion10 decks21 decks
42%synergy
Entity Tracker
48%inclusion10 decks21 decks
42%synergy
Gravebreaker Lamia
38%inclusion8 decks21 decks
37%synergy
Aminatou, Veil Piercer
38%inclusion8 decks21 decks
37%synergy
Inquisitive Glimmer
43%inclusion9 decks21 decks
36%synergy
Ondu Spiritdancer
38%inclusion8 decks21 decks
32%synergy
Grasp of Fate
38%inclusion8 decks21 decks
32%synergy
Top Cards
Swords to Plowshares
48%inclusion10 decks21 decks
-20%synergy
Ghostly Prison
43%inclusion9 decks21 decks
20%synergy
Blind Obedience
38%inclusion8 decks21 decks
26%synergy
Void Rend
38%inclusion8 decks21 decks
3%synergy
Mesa Enchantress
38%inclusion8 decks21 decks
29%synergy
Exquisite Blood
38%inclusion8 decks21 decks
31%synergy
Propaganda
38%inclusion8 decks21 decks
9%synergy
Authority of the Consuls
33%inclusion7 decks21 decks
20%synergy
Mystic Remora
33%inclusion7 decks21 decks
13%synergy
Shark Typhoon
33%inclusion7 decks21 decks
28%synergy
Game Changers
Smothering Tithe
29%inclusion6 decks21 decks
-2%synergy
Ancient Tomb
29%inclusion6 decks21 decks
16%synergy
Rhystic Study
29%inclusion6 decks21 decks
-2%synergy
Cyclonic Rift
29%inclusion6 decks21 decks
6%synergy
Demonic Tutor
24%inclusion5 decks21 decks
4%synergy
Teferi's Protection
19%inclusion4 decks21 decks
3%synergy
Enlightened Tutor
19%inclusion4 decks21 decks
0%synergy
Vampiric Tutor
19%inclusion4 decks21 decks
2%synergy
Serra's Sanctum
14%inclusion3 decks21 decks
13%synergy
Force of Will
14%inclusion3 decks21 decks
2%synergy
Creatures
Starfield Mystic
29%inclusion6 decks21 decks
22%synergy
Overlord of the Floodpits
29%inclusion6 decks21 decks
25%synergy
Nykthos Paragon
29%inclusion6 decks21 decks
27%synergy
Moon-Blessed Cleric
29%inclusion6 decks21 decks
24%synergy
Victor, Valgavoth's Seneschal
29%inclusion6 decks21 decks
27%synergy
Zur, Eternal Schemer
29%inclusion6 decks21 decks
25%synergy
Scrabbling Skullcrab
24%inclusion5 decks21 decks
23%synergy
Kambal, Consul of Allocation
24%inclusion5 decks21 decks
15%synergy
Overlord of the Balemurk
24%inclusion5 decks21 decks
22%synergy
Enduring Tenacity
24%inclusion5 decks21 decks
16%synergy
Heliod, the Radiant Dawn
24%inclusion5 decks21 decks
20%synergy
Children of Korlis
24%inclusion5 decks21 decks
23%synergy
Hope Estheim
22%inclusion2 decks9 decks
21%synergy
South Wind Avatar
20%inclusion1 decks5 decks
19%synergy
Metamorphosis Fanatic
19%inclusion4 decks21 decks
15%synergy
Fear of Infinity
19%inclusion4 decks21 decks
18%synergy
Lotho, Corrupt Shirriff
19%inclusion4 decks21 decks
2%synergy
Psychosis Crawler
19%inclusion4 decks21 decks
16%synergy
Archon of Redemption
19%inclusion4 decks21 decks
19%synergy
Soaring Lightbringer
19%inclusion4 decks21 decks
15%synergy
Hedron Crab
19%inclusion4 decks21 decks
18%synergy
Alela, Artful Provocateur
19%inclusion4 decks21 decks
16%synergy
Enduring Innocence
19%inclusion4 decks21 decks
17%synergy
Enduring Curiosity
19%inclusion4 decks21 decks
11%synergy
Fear of Sleep Paralysis
19%inclusion4 decks21 decks
14%synergy
Nightmare Shepherd
19%inclusion4 decks21 decks
17%synergy
Doomwake Giant
19%inclusion4 decks21 decks
13%synergy
Deathbringer Liege
19%inclusion4 decks21 decks
19%synergy
Vizkopa Guildmage
19%inclusion4 decks21 decks
18%synergy
Mister Negative
17%inclusion1 decks6 decks
16%synergy
Wan Shi Tong, Librarian
17%inclusion1 decks6 decks
12%synergy
Aang, Swift Savior
17%inclusion1 decks6 decks
16%synergy
Tithe Drinker
14%inclusion3 decks21 decks
14%synergy
Hanna, Ship's Navigator
14%inclusion3 decks21 decks
12%synergy
Esper Sentinel
14%inclusion3 decks21 decks
-13%synergy
Sage of Mysteries
14%inclusion3 decks21 decks
14%synergy
Silent Hallcreeper
14%inclusion3 decks21 decks
10%synergy
Arvinox, the Mind Flail
14%inclusion3 decks21 decks
13%synergy
Athreos, God of Passage
14%inclusion3 decks21 decks
13%synergy
Ghostly Dancers
14%inclusion3 decks21 decks
12%synergy
Faith Healer
14%inclusion3 decks21 decks
14%synergy
Zur the Enchanter
14%inclusion3 decks21 decks
9%synergy
Emeria Angel
14%inclusion3 decks21 decks
14%synergy
Aunt May
14%inclusion1 decks7 decks
14%synergy
Spectacular Spider-Man
14%inclusion1 decks7 decks
14%synergy
Neerdiv, Devious Diver
11%inclusion2 decks18 decks
11%synergy
Sephiroth, Fabled SOLDIER
11%inclusion1 decks9 decks
10%synergy
Aerith Gainsborough
11%inclusion1 decks9 decks
10%synergy
Papalymo Totolymo
11%inclusion1 decks9 decks
1%synergy
Starnheim Courser
10%inclusion2 decks21 decks
6%synergy
Instants
Entomb
24%inclusion5 decks21 decks
17%synergy
Riot Control
24%inclusion5 decks21 decks
23%synergy
Counterspell
24%inclusion5 decks21 decks
-18%synergy
Dark Ritual
19%inclusion4 decks21 decks
-1%synergy
Utter End
19%inclusion4 decks21 decks
13%synergy
Inkshield
19%inclusion4 decks21 decks
9%synergy
Spider-Sense
17%inclusion1 decks6 decks
15%synergy
An Offer You Can't Refuse
14%inclusion3 decks21 decks
-13%synergy
Brainstorm
14%inclusion3 decks21 decks
-2%synergy
Angel's Grace
14%inclusion3 decks21 decks
12%synergy
Mana Drain
14%inclusion3 decks21 decks
-3%synergy
Arcane Denial
14%inclusion3 decks21 decks
-6%synergy
Sink into Stupor
14%inclusion3 decks21 decks
1%synergy
Path to Exile
14%inclusion3 decks21 decks
-28%synergy
Mortify
14%inclusion3 decks21 decks
5%synergy
Deadly Rollick
10%inclusion2 decks21 decks
-6%synergy
Sacrifice
10%inclusion2 decks21 decks
9%synergy
Punish Ignorance
10%inclusion2 decks21 decks
9%synergy
Frantic Search
10%inclusion2 decks21 decks
-9%synergy
Dovin's Veto
10%inclusion2 decks21 decks
-17%synergy
Render Silent
10%inclusion2 decks21 decks
6%synergy
Fact or Fiction
10%inclusion2 decks21 decks
6%synergy
Gifts Ungiven
10%inclusion2 decks21 decks
7%synergy
Unexplained Absence
10%inclusion2 decks21 decks
9%synergy
Swan Song
10%inclusion2 decks21 decks
-10%synergy
Stifle
10%inclusion2 decks21 decks
9%synergy
Fierce Guardianship
10%inclusion2 decks21 decks
-11%synergy
Pulse of the Fields
10%inclusion2 decks21 decks
10%synergy
Withering Torment
10%inclusion2 decks21 decks
8%synergy
Sorceries
Space-Time Anomaly
29%inclusion2 decks7 decks
27%synergy
Singularity Rupture
25%inclusion2 decks8 decks
23%synergy
Time Wipe
24%inclusion5 decks21 decks
17%synergy
Dream Harvest
20%inclusion1 decks5 decks
19%synergy
Resurgent Belief
19%inclusion4 decks21 decks
17%synergy
Glimpse the Unthinkable
19%inclusion4 decks21 decks
19%synergy
Debt to the Deathless
19%inclusion4 decks21 decks
17%synergy
Dark Petition
19%inclusion4 decks21 decks
19%synergy
Revival // Revenge
19%inclusion4 decks21 decks
18%synergy
Fumigate
19%inclusion4 decks21 decks
16%synergy
Entreat the Angels
19%inclusion4 decks21 decks
17%synergy
Unburial Rites
19%inclusion4 decks21 decks
16%synergy
Grim Tutor
19%inclusion4 decks21 decks
15%synergy
Dance of the Manse
19%inclusion4 decks21 decks
16%synergy
Spirit Water Revival
17%inclusion1 decks6 decks
16%synergy
Commune with Evil
14%inclusion3 decks21 decks
14%synergy
Windfall
14%inclusion3 decks21 decks
1%synergy
Open the Vaults
14%inclusion3 decks21 decks
13%synergy
Replenish
14%inclusion3 decks21 decks
13%synergy
Idyllic Tutor
14%inclusion3 decks21 decks
10%synergy
Reanimate
14%inclusion3 decks21 decks
-2%synergy
Breach the Multiverse
14%inclusion3 decks21 decks
12%synergy
Lunar Insight
11%inclusion2 decks18 decks
11%synergy
Supreme Verdict
10%inclusion2 decks21 decks
-5%synergy
Incarnation Technique
10%inclusion2 decks21 decks
9%synergy
Sevinne's Reclamation
10%inclusion2 decks21 decks
1%synergy
Victimize
10%inclusion2 decks21 decks
1%synergy
Late to Dinner
10%inclusion2 decks21 decks
9%synergy
Recall
10%inclusion2 decks21 decks
9%synergy
Farewell
10%inclusion2 decks21 decks
-3%synergy
Braingeyser
10%inclusion2 decks21 decks
9%synergy
Toxic Deluge
10%inclusion2 decks21 decks
-10%synergy
Extinguish All Hope
10%inclusion2 decks21 decks
8%synergy
Tasha's Hideous Laughter
10%inclusion2 decks21 decks
9%synergy
Rise of the Dark Realms
10%inclusion2 decks21 decks
6%synergy
Winternight Stories
9.1%inclusion1 decks11 decks
8%synergy
Blasphemous Edict
5.6%inclusion1 decks18 decks
3%synergy
Raise the Past
5.6%inclusion1 decks18 decks
5%synergy
Utility Artifacts
Mesmeric Orb
24%inclusion5 decks21 decks
23%synergy
The Wind Crystal
22%inclusion2 decks9 decks
17%synergy
The Water Crystal
22%inclusion2 decks9 decks
20%synergy
Marina Vendrell's Grimoire
14%inclusion3 decks21 decks
13%synergy
Cloud Key
10%inclusion2 decks21 decks
6%synergy
Bolas's Citadel
10%inclusion2 decks21 decks
0%synergy
Helm of the Gods
10%inclusion2 decks21 decks
9%synergy
Whip of Erebos
10%inclusion2 decks21 decks
7%synergy
Aetherflux Reservoir
10%inclusion2 decks21 decks
2%synergy
Mindcrank
10%inclusion2 decks21 decks
7%synergy
Lightning Greaves
10%inclusion2 decks21 decks
-13%synergy
Alhammarret's Archive
10%inclusion2 decks21 decks
4%synergy
Archaeomancer's Map
10%inclusion2 decks21 decks
4%synergy
Tainted Sigil
10%inclusion2 decks21 decks
9%synergy
Riverchurn Monument
7.7%inclusion1 decks13 decks
7%synergy
Enchantments
Timely Ward
33%inclusion7 decks21 decks
28%synergy
Monologue Tax
33%inclusion7 decks21 decks
27%synergy
Animate Dead
33%inclusion7 decks21 decks
24%synergy
Land Tax
33%inclusion7 decks21 decks
27%synergy
Dress Down
29%inclusion6 decks21 decks
26%synergy
Stillness in Motion
27%inclusion3 decks11 decks
27%synergy
Cramped Vents // Access Maze
24%inclusion5 decks21 decks
22%synergy
The Eldest Reborn
24%inclusion5 decks21 decks
21%synergy
Necromancy
24%inclusion5 decks21 decks
19%synergy
Sanguine Bond
24%inclusion5 decks21 decks
16%synergy
Cemetery Tampering
24%inclusion5 decks21 decks
23%synergy
Boon Reflection
24%inclusion5 decks21 decks
23%synergy
Polluted Cistern // Dim Oubliette
24%inclusion5 decks21 decks
23%synergy
One with the Multiverse
19%inclusion4 decks21 decks
14%synergy
The Meathook Massacre
19%inclusion4 decks21 decks
16%synergy
Sigil of the Empty Throne
19%inclusion4 decks21 decks
13%synergy
Lich's Mastery
19%inclusion4 decks21 decks
18%synergy
Estrid's Invocation
19%inclusion4 decks21 decks
14%synergy
Sphere of Safety
19%inclusion4 decks21 decks
10%synergy
Solitary Confinement
19%inclusion4 decks21 decks
17%synergy
Greed
14%inclusion3 decks21 decks
12%synergy
Shadow of the Second Sun
14%inclusion3 decks21 decks
12%synergy
Glasswing Grace
14%inclusion3 decks21 decks
11%synergy
Out of the Tombs
14%inclusion3 decks21 decks
14%synergy
Lich
14%inclusion3 decks21 decks
14%synergy
Griffin Aerie
14%inclusion3 decks21 decks
14%synergy
Copy Enchantment
14%inclusion3 decks21 decks
9%synergy
Starfield of Nyx
14%inclusion3 decks21 decks
10%synergy
Funeral Room // Awakening Hall
14%inclusion3 decks21 decks
13%synergy
Debtors' Knell
14%inclusion3 decks21 decks
13%synergy
Restricted Office // Lecture Hall
14%inclusion3 decks21 decks
12%synergy
Nefarious Lich
14%inclusion3 decks21 decks
14%synergy
Ethereal Armor
14%inclusion3 decks21 decks
10%synergy
Revenge of Ravens
14%inclusion3 decks21 decks
13%synergy
Hallowed Haunting
14%inclusion3 decks21 decks
12%synergy
Greater Auramancy
14%inclusion3 decks21 decks
10%synergy
Defiled Crypt // Cadaver Lab
14%inclusion3 decks21 decks
14%synergy
Darksteel Mutation
10%inclusion2 decks21 decks
3%synergy
Founding the Third Path
10%inclusion2 decks21 decks
9%synergy
Dance of the Dead
10%inclusion2 decks21 decks
7%synergy
Smuggler's Share
10%inclusion2 decks21 decks
8%synergy
Fortune Teller's Talent
10%inclusion2 decks21 decks
9%synergy
Cacophony Unleashed
10%inclusion2 decks21 decks
8%synergy
Trapped in the Screen
10%inclusion2 decks21 decks
9%synergy
Black Market
10%inclusion2 decks21 decks
9%synergy
Psychic Corrosion
10%inclusion2 decks21 decks
8%synergy
Wizard Class
10%inclusion2 decks21 decks
7%synergy
Underworld Connections
10%inclusion2 decks21 decks
9%synergy
Extravagant Replication
10%inclusion2 decks21 decks
5%synergy
Chronic Flooding
10%inclusion2 decks21 decks
9%synergy
Planeswalkers
Liliana of the Dark Realms
14%inclusion3 decks21 decks
14%synergy
Kaya, Intangible Slayer
10%inclusion2 decks21 decks
9%synergy
Utility Lands
Bojuka Bog
38%inclusion8 decks21 decks
11%synergy
Vault of the Archangel
29%inclusion6 decks21 decks
22%synergy
Halimar Depths
24%inclusion5 decks21 decks
19%synergy
Urborg, Tomb of Yawgmoth
24%inclusion5 decks21 decks
11%synergy
Jidoor, Aristocratic Capital
22%inclusion2 decks9 decks
21%synergy
Otawara, Soaring City
19%inclusion4 decks21 decks
0%synergy
Takenuma, Abandoned Mire
14%inclusion3 decks21 decks
8%synergy
Reliquary Tower
14%inclusion3 decks21 decks
-20%synergy
Ishgard, the Holy See
11%inclusion1 decks9 decks
8%synergy
Shizo, Death's Storehouse
10%inclusion2 decks21 decks
7%synergy
Urza's Saga
10%inclusion2 decks21 decks
-2%synergy
Cabal Coffers
10%inclusion2 decks21 decks
6%synergy
Lake of the Dead
10%inclusion2 decks21 decks
9%synergy
Guildless Commons
10%inclusion2 decks21 decks
9%synergy
Mana Artifacts
Arcane Signet
86%inclusion18 decks21 decks
-2%synergy
Sol Ring
86%inclusion18 decks21 decks
-4%synergy
Talisman of Progress
62%inclusion13 decks21 decks
18%synergy
Talisman of Hierarchy
57%inclusion12 decks21 decks
13%synergy
Talisman of Dominance
43%inclusion9 decks21 decks
-7%synergy
Fellwar Stone
43%inclusion9 decks21 decks
10%synergy
Dimir Signet
38%inclusion8 decks21 decks
8%synergy
Orzhov Signet
38%inclusion8 decks21 decks
6%synergy
Azorius Signet
29%inclusion6 decks21 decks
-1%synergy
Thought Vessel
24%inclusion5 decks21 decks
-1%synergy
Chromatic Lantern
14%inclusion3 decks21 decks
2%synergy
Commander's Sphere
10%inclusion2 decks21 decks
-8%synergy
Pristine Talisman
10%inclusion2 decks21 decks
8%synergy
Gilded Lotus
10%inclusion2 decks21 decks
6%synergy
Thran Dynamo
10%inclusion2 decks21 decks
6%synergy
Midnight Clock
10%inclusion2 decks21 decks
6%synergy
Lands
Swamp
100%inclusion21 decks21 decks
8%synergy
Island
100%inclusion21 decks21 decks
7%synergy
Plains
100%inclusion21 decks21 decks
8%synergy
Command Tower
95%inclusion20 decks21 decks
3%synergy
Raffine's Tower
52%inclusion11 decks21 decks
12%synergy
Godless Shrine
48%inclusion10 decks21 decks
-4%synergy
Arcane Sanctum
48%inclusion10 decks21 decks
-6%synergy
Vault of Champions
48%inclusion10 decks21 decks
15%synergy
Watery Grave
48%inclusion10 decks21 decks
-4%synergy
Exotic Orchard
43%inclusion9 decks21 decks
-16%synergy
Caves of Koilos
43%inclusion9 decks21 decks
7%synergy
Isolated Chapel
43%inclusion9 decks21 decks
1%synergy
Adarkar Wastes
43%inclusion9 decks21 decks
10%synergy
Hallowed Fountain
43%inclusion9 decks21 decks
-8%synergy
Glacial Fortress
38%inclusion8 decks21 decks
-5%synergy
Dimir Aqueduct
38%inclusion8 decks21 decks
25%synergy
Sea of Clouds
38%inclusion8 decks21 decks
3%synergy
Drowned Catacomb
38%inclusion8 decks21 decks
0%synergy
Orzhov Basilica
38%inclusion8 decks21 decks
23%synergy
Undercity Sewers
33%inclusion7 decks21 decks
19%synergy
Prairie Stream
33%inclusion7 decks21 decks
-7%synergy
Valgavoth's Lair
33%inclusion7 decks21 decks
31%synergy
Underground River
33%inclusion7 decks21 decks
-1%synergy
Morphic Pool
33%inclusion7 decks21 decks
0%synergy
Meticulous Archive
33%inclusion7 decks21 decks
19%synergy
Shadowy Backstreet
29%inclusion6 decks21 decks
16%synergy
Port Town
29%inclusion6 decks21 decks
12%synergy
Shipwreck Marsh
29%inclusion6 decks21 decks
8%synergy
Scoured Barrens
29%inclusion6 decks21 decks
22%synergy
Marsh Flats
29%inclusion6 decks21 decks
-7%synergy
Polluted Delta
29%inclusion6 decks21 decks
-9%synergy
Flooded Strand
29%inclusion6 decks21 decks
-10%synergy
Thriving Isle
24%inclusion5 decks21 decks
20%synergy
Thriving Heath
24%inclusion5 decks21 decks
20%synergy
Obscura Storefront
24%inclusion5 decks21 decks
15%synergy
Deserted Beach
24%inclusion5 decks21 decks
3%synergy
Floodfarm Verge
24%inclusion5 decks21 decks
13%synergy
Azorius Chancery
19%inclusion4 decks21 decks
6%synergy
Bleachbone Verge
15%inclusion2 decks13 decks
7%synergy
Glasswing Grace
14%inclusion3 decks21 decks
11%synergy
Sink into Stupor
14%inclusion3 decks21 decks
1%synergy
Shattered Sanctum
14%inclusion3 decks21 decks
-3%synergy
Sunken Hollow
14%inclusion3 decks21 decks
-25%synergy
Gloomlake Verge
14%inclusion3 decks21 decks
3%synergy
Witch Enchanter
10%inclusion2 decks21 decks
2%synergy
Brightclimb Pathway
10%inclusion2 decks21 decks
3%synergy
Myriad Landscape
10%inclusion2 decks21 decks
2%synergy
Fetid Heath
10%inclusion2 decks21 decks
-4%synergy
Hydroelectric Specimen
10%inclusion2 decks21 decks
7%synergy
Skycloud Expanse
10%inclusion2 decks21 decks
-6%synergy
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