The Master of Keys (Commander) - Upgraded Control

The Master of Keys
Rank #315
30decks
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Background image for Examining Duskmourn: House of Horror, One Year Later
Josh Nelson
Sep 26, 2025
Josh Nelson
Examining Duskmourn: House of Horror, One Year Later
Last time, we examined Bloomburrow and its cozy woodland vibes. Today, we're taking a much darker turn with Duskmourn: House of Horror!
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Utility Lands
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Entity Tracker
83%inclusion25 decks30 decks
77%synergy
Ripples of Undeath
77%inclusion23 decks30 decks
74%synergy
Inquisitive Glimmer
80%inclusion24 decks30 decks
72%synergy
Starfield Mystic
73%inclusion22 decks30 decks
67%synergy
Gravebreaker Lamia
67%inclusion20 decks30 decks
66%synergy
Hall of Heliod's Generosity
77%inclusion23 decks30 decks
63%synergy
Demon of Fate's Design
67%inclusion20 decks30 decks
61%synergy
Dress Down
63%inclusion19 decks30 decks
61%synergy
Mesa Enchantress
67%inclusion20 decks30 decks
58%synergy
Doomwake Giant
63%inclusion19 decks30 decks
57%synergy
Top Cards
Animate Dead
67%inclusion20 decks30 decks
57%synergy
Mystic Remora
63%inclusion19 decks30 decks
42%synergy
Scrabbling Skullcrab
57%inclusion17 decks30 decks
56%synergy
Fear of Impostors
57%inclusion17 decks30 decks
55%synergy
Necromancy
57%inclusion17 decks30 decks
52%synergy
Amphibian Downpour
57%inclusion17 decks30 decks
52%synergy
Swords to Plowshares
53%inclusion16 decks30 decks
-15%synergy
Zur, Eternal Schemer
53%inclusion16 decks30 decks
50%synergy
Ghostly Prison
53%inclusion16 decks30 decks
32%synergy
Grasp of Fate
50%inclusion15 decks30 decks
44%synergy
Game Changers
Smothering Tithe
37%inclusion11 decks30 decks
4%synergy
Rhystic Study
30%inclusion9 decks30 decks
-3%synergy
Gifts Ungiven
13%inclusion4 decks30 decks
11%synergy
Teferi's Protection
10%inclusion3 decks30 decks
-7%synergy
Consecrated Sphinx
10%inclusion3 decks30 decks
4%synergy
Serra's Sanctum
6.7%inclusion2 decks30 decks
5%synergy
Intuition
6.7%inclusion2 decks30 decks
5%synergy
Enlightened Tutor
6.7%inclusion2 decks30 decks
-14%synergy
Cyclonic Rift
6.7%inclusion2 decks30 decks
-18%synergy
Creatures
Fear of Sleep Paralysis
50%inclusion15 decks30 decks
44%synergy
Overlord of the Floodpits
47%inclusion14 decks30 decks
43%synergy
Overlord of the Balemurk
47%inclusion14 decks30 decks
45%synergy
Victor, Valgavoth's Seneschal
43%inclusion13 decks30 decks
41%synergy
Ondu Spiritdancer
43%inclusion13 decks30 decks
37%synergy
Heliod, the Radiant Dawn
40%inclusion12 decks30 decks
36%synergy
Silent Hallcreeper
33%inclusion10 decks30 decks
29%synergy
Grim Guardian
33%inclusion10 decks30 decks
31%synergy
Ghostly Dancers
27%inclusion8 decks30 decks
24%synergy
Archon of Sun's Grace
23%inclusion7 decks30 decks
19%synergy
Sage of Mysteries
23%inclusion7 decks30 decks
23%synergy
Abdel Adrian, Gorion's Ward
23%inclusion7 decks30 decks
22%synergy
Zur the Enchanter
23%inclusion7 decks30 decks
18%synergy
Ledger Shredder
20%inclusion6 decks30 decks
11%synergy
Enduring Curiosity
17%inclusion5 decks30 decks
9%synergy
Balemurk Leech
17%inclusion5 decks30 decks
16%synergy
Ancient Cellarspawn
17%inclusion5 decks30 decks
13%synergy
Hullbreaker Horror
17%inclusion5 decks30 decks
10%synergy
Stenn, Paranoid Partisan
13%inclusion4 decks30 decks
12%synergy
Lotho, Corrupt Shirriff
13%inclusion4 decks30 decks
-3%synergy
Lurrus of the Dream-Den
13%inclusion4 decks30 decks
12%synergy
Moon-Blessed Cleric
13%inclusion4 decks30 decks
9%synergy
Aminatou, Veil Piercer
13%inclusion4 decks30 decks
12%synergy
Fear of Infinity
10%inclusion3 decks30 decks
9%synergy
Valley Floodcaller
10%inclusion3 decks30 decks
6%synergy
Soaring Lightbringer
10%inclusion3 decks30 decks
5%synergy
Overlord of the Mistmoors
10%inclusion3 decks30 decks
8%synergy
Skullsnap Nuisance
10%inclusion3 decks30 decks
10%synergy
Athreos, Shroud-Veiled
10%inclusion3 decks30 decks
6%synergy
Archetype of Imagination
10%inclusion3 decks30 decks
5%synergy
Neerdiv, Devious Diver
10%inclusion3 decks30 decks
10%synergy
Toxrill, the Corrosive
10%inclusion3 decks30 decks
7%synergy
Mindwrack Harpy
10%inclusion3 decks30 decks
10%synergy
Starnheim Courser
6.7%inclusion2 decks30 decks
3%synergy
Witch Enchanter
6.7%inclusion2 decks30 decks
0%synergy
Eidolon of Rhetoric
6.7%inclusion2 decks30 decks
5%synergy
Gray Merchant of Asphodel
6.7%inclusion2 decks30 decks
2%synergy
Heliod, Sun-Crowned
6.7%inclusion2 decks30 decks
3%synergy
Archetype of Courage
6.7%inclusion2 decks30 decks
5%synergy
Vilis, Broker of Blood
6.7%inclusion2 decks30 decks
6%synergy
Leonin Relic-Warder
6.7%inclusion2 decks30 decks
6%synergy
Nashi, Searcher in the Dark
6.7%inclusion2 decks30 decks
6%synergy
Nightmare Shepherd
6.7%inclusion2 decks30 decks
4%synergy
Nezahal, Primal Tide
6.7%inclusion2 decks30 decks
3%synergy
Valgavoth, Terror Eater
6.7%inclusion2 decks30 decks
3%synergy
Instants
An Offer You Can't Refuse
50%inclusion15 decks30 decks
24%synergy
Arcane Denial
40%inclusion12 decks30 decks
20%synergy
Counterspell
37%inclusion11 decks30 decks
-4%synergy
Swan Song
30%inclusion9 decks30 decks
11%synergy
Entomb
27%inclusion8 decks30 decks
20%synergy
Path to Exile
27%inclusion8 decks30 decks
-15%synergy
Void Rend
23%inclusion7 decks30 decks
-10%synergy
Sink into Stupor
23%inclusion7 decks30 decks
11%synergy
Thirst for Meaning
20%inclusion6 decks30 decks
18%synergy
Mana Drain
20%inclusion6 decks30 decks
2%synergy
Negate
17%inclusion5 decks30 decks
0%synergy
Fact or Fiction
17%inclusion5 decks30 decks
13%synergy
Inkshield
17%inclusion5 decks30 decks
8%synergy
Dovin's Veto
13%inclusion4 decks30 decks
-11%synergy
Dark Ritual
13%inclusion4 decks30 decks
-6%synergy
Anguished Unmaking
13%inclusion4 decks30 decks
-11%synergy
Generous Gift
13%inclusion4 decks30 decks
-1%synergy
Faithful Mending
10%inclusion3 decks30 decks
6%synergy
Fell the Profane
6.7%inclusion2 decks30 decks
-2%synergy
Frantic Search
6.7%inclusion2 decks30 decks
-10%synergy
Brainstorm
6.7%inclusion2 decks30 decks
-11%synergy
Dawn's Truce
6.7%inclusion2 decks30 decks
2%synergy
Lim-Dûl's Vault
6.7%inclusion2 decks30 decks
3%synergy
Flare of Fortitude
6.7%inclusion2 decks30 decks
4%synergy
Strix Serenade
6.7%inclusion2 decks30 decks
3%synergy
Jwari Disruption
6.7%inclusion2 decks30 decks
6%synergy
Utter End
6.7%inclusion2 decks30 decks
0%synergy
Drown in Dreams
6.7%inclusion2 decks30 decks
6%synergy
Pact of Negation
6.7%inclusion2 decks30 decks
-1%synergy
Sorceries
Sevinne's Reclamation
47%inclusion14 decks30 decks
38%synergy
Redress Fate
27%inclusion8 decks30 decks
20%synergy
Supreme Verdict
23%inclusion7 decks30 decks
8%synergy
Reanimate
23%inclusion7 decks30 decks
7%synergy
Windfall
20%inclusion6 decks30 decks
6%synergy
Damn
20%inclusion6 decks30 decks
0%synergy
Extinguish All Hope
20%inclusion6 decks30 decks
18%synergy
Dance of the Manse
20%inclusion6 decks30 decks
16%synergy
Wrath of God
17%inclusion5 decks30 decks
13%synergy
Glimpse the Unthinkable
17%inclusion5 decks30 decks
16%synergy
Toxic Deluge
17%inclusion5 decks30 decks
-3%synergy
Farewell
13%inclusion4 decks30 decks
0%synergy
Idyllic Tutor
13%inclusion4 decks30 decks
9%synergy
Traumatize
13%inclusion4 decks30 decks
13%synergy
Resurgent Belief
10%inclusion3 decks30 decks
8%synergy
Demonic Counsel
10%inclusion3 decks30 decks
9%synergy
Buried Alive
10%inclusion3 decks30 decks
6%synergy
Space-Time Anomaly
10%inclusion2 decks21 decks
8%synergy
Ponder
6.7%inclusion2 decks30 decks
-3%synergy
Ondu Inversion
6.7%inclusion2 decks30 decks
5%synergy
Open the Vaults
6.7%inclusion2 decks30 decks
5%synergy
Time Wipe
6.7%inclusion2 decks30 decks
-1%synergy
Slaughter the Strong
6.7%inclusion2 decks30 decks
6%synergy
Night's Whisper
6.7%inclusion2 decks30 decks
4%synergy
Brilliant Restoration
6.7%inclusion2 decks30 decks
5%synergy
Breach the Multiverse
6.7%inclusion2 decks30 decks
4%synergy
Compulsive Research
6.7%inclusion2 decks30 decks
6%synergy
Utility Artifacts
Mesmeric Orb
33%inclusion10 decks30 decks
32%synergy
Lightning Greaves
23%inclusion7 decks30 decks
1%synergy
Cloud Key
10%inclusion3 decks30 decks
7%synergy
Whip of Erebos
10%inclusion3 decks30 decks
8%synergy
Swiftfoot Boots
10%inclusion3 decks30 decks
-14%synergy
Crucible of Worlds
6.7%inclusion2 decks30 decks
6%synergy
Mask of the Schemer
6.7%inclusion2 decks30 decks
6%synergy
Palantír of Orthanc
6.7%inclusion2 decks30 decks
5%synergy
Wishclaw Talisman
6.7%inclusion2 decks30 decks
-2%synergy
Enchantments
Sphere of Safety
50%inclusion15 decks30 decks
41%synergy
Secret Arcade // Dusty Parlor
50%inclusion15 decks30 decks
45%synergy
Propaganda
50%inclusion15 decks30 decks
24%synergy
Sigil of the Empty Throne
47%inclusion14 decks30 decks
41%synergy
Dance of the Dead
43%inclusion13 decks30 decks
41%synergy
Blind Obedience
43%inclusion13 decks30 decks
31%synergy
Mirrormade
43%inclusion13 decks30 decks
33%synergy
Cemetery Tampering
43%inclusion13 decks30 decks
43%synergy
Seal of Cleansing
40%inclusion12 decks30 decks
38%synergy
Out of the Tombs
37%inclusion11 decks30 decks
36%synergy
Estrid's Invocation
37%inclusion11 decks30 decks
32%synergy
The Meathook Massacre
33%inclusion10 decks30 decks
30%synergy
Starfield of Nyx
33%inclusion10 decks30 decks
29%synergy
The Tale of Tamiyo
33%inclusion10 decks30 decks
33%synergy
Ethereal Armor
33%inclusion10 decks30 decks
29%synergy
Cacophony Unleashed
30%inclusion9 decks30 decks
28%synergy
Touch the Spirit Realm
30%inclusion9 decks30 decks
27%synergy
Timely Ward
30%inclusion9 decks30 decks
25%synergy
Darksteel Mutation
27%inclusion8 decks30 decks
20%synergy
Hallowed Haunting
27%inclusion8 decks30 decks
24%synergy
Trouble in Pairs
27%inclusion8 decks30 decks
21%synergy
Defiled Crypt // Cadaver Lab
27%inclusion8 decks30 decks
26%synergy
Extravagant Replication
23%inclusion7 decks30 decks
18%synergy
Authority of the Consuls
23%inclusion7 decks30 decks
12%synergy
Copy Enchantment
23%inclusion7 decks30 decks
19%synergy
Land Tax
23%inclusion7 decks30 decks
17%synergy
Seal of Removal
23%inclusion7 decks30 decks
23%synergy
One with the Multiverse
20%inclusion6 decks30 decks
15%synergy
Imprisoned in the Moon
20%inclusion6 decks30 decks
14%synergy
Monologue Tax
20%inclusion6 decks30 decks
14%synergy
Static Prison
20%inclusion6 decks30 decks
19%synergy
Secrets of the Dead
20%inclusion6 decks30 decks
20%synergy
Sheltered by Ghosts
20%inclusion6 decks30 decks
17%synergy
Black Market Connections
20%inclusion6 decks30 decks
6%synergy
Greater Auramancy
20%inclusion6 decks30 decks
16%synergy
Aura of Silence
20%inclusion6 decks30 decks
17%synergy
Teval's Judgment
19%inclusion5 decks27 decks
18%synergy
Stillness in Motion
19%inclusion5 decks27 decks
18%synergy
Tinybones Joins Up
17%inclusion5 decks30 decks
15%synergy
Shark Typhoon
17%inclusion5 decks30 decks
11%synergy
Leyline of Anticipation
17%inclusion5 decks30 decks
12%synergy
Bottomless Pool // Locker Room
17%inclusion5 decks30 decks
15%synergy
Oubliette
17%inclusion5 decks30 decks
15%synergy
Polluted Cistern // Dim Oubliette
17%inclusion5 decks30 decks
16%synergy
Solitary Confinement
17%inclusion5 decks30 decks
15%synergy
Nowhere to Run
17%inclusion5 decks30 decks
15%synergy
Phyrexian Arena
17%inclusion5 decks30 decks
3%synergy
Virtue of Persistence
17%inclusion5 decks30 decks
15%synergy
Smuggler's Share
13%inclusion4 decks30 decks
11%synergy
Hopeless Nightmare
13%inclusion4 decks30 decks
13%synergy
Utility Lands
Bojuka Bog
40%inclusion12 decks30 decks
13%synergy
Cephalid Coliseum
30%inclusion9 decks30 decks
26%synergy
Otawara, Soaring City
23%inclusion7 decks30 decks
4%synergy
Ishgard, the Holy See
13%inclusion3 decks24 decks
9%synergy
Geier Reach Sanitarium
10%inclusion3 decks30 decks
6%synergy
Takenuma, Abandoned Mire
10%inclusion3 decks30 decks
3%synergy
Urborg, Tomb of Yawgmoth
10%inclusion3 decks30 decks
-3%synergy
Minamo, School at Water's Edge
6.7%inclusion2 decks30 decks
3%synergy
Urza's Saga
6.7%inclusion2 decks30 decks
-5%synergy
Nephalia Drownyard
6.7%inclusion2 decks30 decks
6%synergy
Emergence Zone
6.7%inclusion2 decks30 decks
5%synergy
Reliquary Tower
6.7%inclusion2 decks30 decks
-27%synergy
Temple of the False God
6.7%inclusion2 decks30 decks
-1%synergy
Vault of the Archangel
6.7%inclusion2 decks30 decks
0%synergy
Rogue's Passage
6.7%inclusion2 decks30 decks
-3%synergy
Mana Artifacts
Sol Ring
90%inclusion27 decks30 decks
0%synergy
Arcane Signet
87%inclusion26 decks30 decks
-1%synergy
Talisman of Progress
60%inclusion18 decks30 decks
17%synergy
Talisman of Hierarchy
57%inclusion17 decks30 decks
14%synergy
Talisman of Dominance
53%inclusion16 decks30 decks
4%synergy
Fellwar Stone
30%inclusion9 decks30 decks
-4%synergy
Orzhov Signet
30%inclusion9 decks30 decks
-5%synergy
Azorius Signet
27%inclusion8 decks30 decks
-6%synergy
Dimir Signet
20%inclusion6 decks30 decks
-13%synergy
Chromatic Lantern
6.7%inclusion2 decks30 decks
-7%synergy
Mind Stone
6.7%inclusion2 decks30 decks
-7%synergy
Lands
Command Tower
97%inclusion29 decks30 decks
4%synergy
Swamp
93%inclusion28 decks30 decks
2%synergy
Island
93%inclusion28 decks30 decks
1%synergy
Plains
93%inclusion28 decks30 decks
2%synergy
Caves of Koilos
63%inclusion19 decks30 decks
28%synergy
Adarkar Wastes
63%inclusion19 decks30 decks
33%synergy
Exotic Orchard
60%inclusion18 decks30 decks
2%synergy
Godless Shrine
60%inclusion18 decks30 decks
10%synergy
Underground River
60%inclusion18 decks30 decks
28%synergy
Flooded Strand
57%inclusion17 decks30 decks
19%synergy
Watery Grave
57%inclusion17 decks30 decks
7%synergy
Hallowed Fountain
53%inclusion16 decks30 decks
4%synergy
Polluted Delta
50%inclusion15 decks30 decks
13%synergy
Undercity Sewers
47%inclusion14 decks30 decks
33%synergy
Arcane Sanctum
47%inclusion14 decks30 decks
-8%synergy
Isolated Chapel
47%inclusion14 decks30 decks
9%synergy
Meticulous Archive
47%inclusion14 decks30 decks
33%synergy
Marsh Flats
47%inclusion14 decks30 decks
11%synergy
Shadowy Backstreet
40%inclusion12 decks30 decks
28%synergy
Morphic Pool
40%inclusion12 decks30 decks
6%synergy
Glacial Fortress
37%inclusion11 decks30 decks
-3%synergy
Sea of Clouds
37%inclusion11 decks30 decks
1%synergy
Raffine's Tower
37%inclusion11 decks30 decks
-4%synergy
Drowned Catacomb
37%inclusion11 decks30 decks
2%synergy
Vault of Champions
37%inclusion11 decks30 decks
4%synergy
Deserted Beach
33%inclusion10 decks30 decks
13%synergy
Prairie Stream
30%inclusion9 decks30 decks
-11%synergy
Temple of Silence
30%inclusion9 decks30 decks
10%synergy
Terramorphic Expanse
27%inclusion8 decks30 decks
10%synergy
Temple of Deceit
27%inclusion8 decks30 decks
8%synergy
Shipwreck Marsh
27%inclusion8 decks30 decks
6%synergy
Valgavoth's Lair
27%inclusion8 decks30 decks
24%synergy
Temple of Enlightenment
27%inclusion8 decks30 decks
10%synergy
Evolving Wilds
27%inclusion8 decks30 decks
1%synergy
Sunken Hollow
27%inclusion8 decks30 decks
-13%synergy
Gloomlake Verge
27%inclusion8 decks30 decks
16%synergy
Obscura Storefront
27%inclusion8 decks30 decks
16%synergy
Sink into Stupor
23%inclusion7 decks30 decks
11%synergy
Floodfarm Verge
23%inclusion7 decks30 decks
12%synergy
Tainted Isle
20%inclusion6 decks30 decks
14%synergy
Contaminated Landscape
20%inclusion6 decks30 decks
5%synergy
Tainted Field
20%inclusion6 decks30 decks
13%synergy
Ash Barrens
20%inclusion6 decks30 decks
9%synergy
Shattered Sanctum
20%inclusion6 decks30 decks
4%synergy
Mana Confluence
20%inclusion6 decks30 decks
6%synergy
Bleachbone Verge
17%inclusion5 decks30 decks
8%synergy
Fetid Heath
17%inclusion5 decks30 decks
5%synergy
Skycloud Expanse
17%inclusion5 decks30 decks
2%synergy
City of Brass
17%inclusion5 decks30 decks
1%synergy
Tundra
13%inclusion4 decks30 decks
-3%synergy
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