The Master of Keys (Commander) - Rooms

The Master of Keys
Rank #301
38decks
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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!
Deck Filters
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Archidekt
Commander Spellbook
Moxfield
Scryfall
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High Synergy Cards
Top Cards
Game Changers
Creatures
Instants
Sorceries
Utility Artifacts
Enchantments
Battles
Utility Lands
Mana Artifacts
Lands
Back to Top
Eiganjo Dynastorian
14%inclusion1 decks7 decks
13%synergy
Turbulent Moor
14%inclusion1 decks7 decks
12%synergy
Restoration Seminar
14%inclusion1 decks7 decks
13%synergy
High Synergy Cards
Central Elevator // Promising Stairs
89%inclusion34 decks38 decks
89%synergy
Inquisitive Glimmer
95%inclusion36 decks38 decks
88%synergy
Defiled Crypt // Cadaver Lab
82%inclusion31 decks38 decks
81%synergy
Restricted Office // Lecture Hall
82%inclusion31 decks38 decks
80%synergy
Fear of Sleep Paralysis
82%inclusion31 decks38 decks
76%synergy
Entity Tracker
82%inclusion31 decks38 decks
76%synergy
Secret Arcade // Dusty Parlor
79%inclusion30 decks38 decks
74%synergy
Dazzling Theater // Prop Room
71%inclusion27 decks38 decks
70%synergy
Ghostly Dancers
71%inclusion27 decks38 decks
69%synergy
Polluted Cistern // Dim Oubliette
68%inclusion26 decks38 decks
68%synergy
Top Cards
Bottomless Pool // Locker Room
68%inclusion26 decks38 decks
67%synergy
Cramped Vents // Access Maze
66%inclusion25 decks38 decks
63%synergy
Mesa Enchantress
66%inclusion25 decks38 decks
57%synergy
Victor, Valgavoth's Seneschal
66%inclusion25 decks38 decks
64%synergy
Mirror Room // Fractured Realm
66%inclusion25 decks38 decks
64%synergy
Overlord of the Floodpits
61%inclusion23 decks38 decks
57%synergy
Demon of Fate's Design
61%inclusion23 decks38 decks
55%synergy
Ripples of Undeath
58%inclusion22 decks38 decks
55%synergy
Sphere of Safety
58%inclusion22 decks38 decks
49%synergy
Scrabbling Skullcrab
55%inclusion21 decks38 decks
54%synergy
Game Changers
Smothering Tithe
21%inclusion8 decks38 decks
-10%synergy
Rhystic Study
13%inclusion5 decks38 decks
-18%synergy
Enlightened Tutor
7.9%inclusion3 decks38 decks
-11%synergy
Cyclonic Rift
7.9%inclusion3 decks38 decks
-15%synergy
Vampiric Tutor
7.9%inclusion3 decks38 decks
-9%synergy
Demonic Tutor
5.3%inclusion2 decks38 decks
-15%synergy
Creatures
Starfield Mystic
55%inclusion21 decks38 decks
49%synergy
Gravebreaker Lamia
55%inclusion21 decks38 decks
54%synergy
Enduring Curiosity
55%inclusion21 decks38 decks
47%synergy
Doomwake Giant
55%inclusion21 decks38 decks
49%synergy
Overlord of the Balemurk
47%inclusion18 decks38 decks
46%synergy
Silent Hallcreeper
47%inclusion18 decks38 decks
43%synergy
Fear of Impostors
45%inclusion17 decks38 decks
43%synergy
Soaring Lightbringer
45%inclusion17 decks38 decks
40%synergy
Overlord of the Mistmoors
42%inclusion16 decks38 decks
40%synergy
Zur, Eternal Schemer
42%inclusion16 decks38 decks
39%synergy
Ondu Spiritdancer
39%inclusion15 decks38 decks
33%synergy
Moon-Blessed Cleric
37%inclusion14 decks38 decks
32%synergy
Fear of Infinity
34%inclusion13 decks38 decks
34%synergy
Balemurk Leech
32%inclusion12 decks38 decks
31%synergy
Ancient Cellarspawn
32%inclusion12 decks38 decks
29%synergy
Aminatou, Veil Piercer
32%inclusion12 decks38 decks
30%synergy
Skullsnap Nuisance
29%inclusion11 decks38 decks
29%synergy
Gremlin Tamer
29%inclusion11 decks38 decks
28%synergy
Ghostly Keybearer
29%inclusion11 decks38 decks
29%synergy
Grim Guardian
24%inclusion9 decks38 decks
21%synergy
Heliod, the Radiant Dawn
24%inclusion9 decks38 decks
20%synergy
Zur the Enchanter
24%inclusion9 decks38 decks
19%synergy
Archetype of Imagination
21%inclusion8 decks38 decks
16%synergy
Creeping Peeper
21%inclusion8 decks38 decks
21%synergy
Sage of Mysteries
18%inclusion7 decks38 decks
18%synergy
Optimistic Scavenger
16%inclusion6 decks38 decks
15%synergy
Archon of Sun's Grace
16%inclusion6 decks38 decks
11%synergy
Spirited Companion
16%inclusion6 decks38 decks
14%synergy
Nashi, Searcher in the Dark
16%inclusion6 decks38 decks
15%synergy
Mindwrack Harpy
16%inclusion6 decks38 decks
15%synergy
Emet-Selch of the Third Seat
15%inclusion4 decks27 decks
5%synergy
Fear of Surveillance
13%inclusion5 decks38 decks
13%synergy
Athreos, Shroud-Veiled
13%inclusion5 decks38 decks
9%synergy
Solemn Simulacrum
11%inclusion4 decks38 decks
-3%synergy
Witch Enchanter
11%inclusion4 decks38 decks
4%synergy
Dashing Bloodsucker
11%inclusion4 decks38 decks
11%synergy
Hedron Crab
11%inclusion4 decks38 decks
10%synergy
Fear of the Dark
11%inclusion4 decks38 decks
10%synergy
Nightmare Shepherd
11%inclusion4 decks38 decks
8%synergy
Alseid of Life's Bounty
11%inclusion4 decks38 decks
9%synergy
Callaphe, Beloved of the Sea
11%inclusion4 decks38 decks
9%synergy
Erratic Apparition
7.9%inclusion3 decks38 decks
8%synergy
Fear of Failed Tests
7.9%inclusion3 decks38 decks
7%synergy
Agent of Erebos
7.9%inclusion3 decks38 decks
7%synergy
The Ancient One
7.9%inclusion3 decks38 decks
8%synergy
Stalked Researcher
7.9%inclusion3 decks38 decks
8%synergy
Auramancer
7.9%inclusion3 decks38 decks
5%synergy
Cult Healer
7.9%inclusion3 decks38 decks
8%synergy
Unwilling Vessel
7.9%inclusion3 decks38 decks
8%synergy
Millikin
7.9%inclusion3 decks38 decks
7%synergy
Instants
Path to Exile
42%inclusion16 decks38 decks
0%synergy
Swords to Plowshares
39%inclusion15 decks38 decks
-28%synergy
Counterspell
32%inclusion12 decks38 decks
-10%synergy
Void Rend
29%inclusion11 decks38 decks
-6%synergy
Arcane Denial
26%inclusion10 decks38 decks
6%synergy
An Offer You Can't Refuse
18%inclusion7 decks38 decks
-9%synergy
Frantic Search
16%inclusion6 decks38 decks
-2%synergy
Dovin's Veto
16%inclusion6 decks38 decks
-10%synergy
Thirst for Meaning
16%inclusion6 decks38 decks
14%synergy
Get Out
13%inclusion5 decks38 decks
13%synergy
Dark Ritual
11%inclusion4 decks38 decks
-9%synergy
Faithful Mending
11%inclusion4 decks38 decks
7%synergy
Sink into Stupor
11%inclusion4 decks38 decks
-2%synergy
Utter End
11%inclusion4 decks38 decks
4%synergy
Inkshield
11%inclusion4 decks38 decks
1%synergy
Fell the Profane
7.9%inclusion3 decks38 decks
-1%synergy
Brainstorm
7.9%inclusion3 decks38 decks
-9%synergy
Waterlogged Teachings
7.9%inclusion3 decks38 decks
3%synergy
Long River's Pull
7.9%inclusion3 decks38 decks
7%synergy
Entomb
5.3%inclusion2 decks38 decks
-1%synergy
Return to Dust
5.3%inclusion2 decks38 decks
2%synergy
Negate
5.3%inclusion2 decks38 decks
-11%synergy
Fact or Fiction
5.3%inclusion2 decks38 decks
2%synergy
Mana Drain
5.3%inclusion2 decks38 decks
-12%synergy
Flusterstorm
5.3%inclusion2 decks38 decks
-3%synergy
Murder
5.3%inclusion2 decks38 decks
4%synergy
Anguished Unmaking
5.3%inclusion2 decks38 decks
-20%synergy
Otherworldly Gaze
5.3%inclusion2 decks38 decks
3%synergy
Don't Make a Sound
5.3%inclusion2 decks38 decks
5%synergy
Withering Torment
5.3%inclusion2 decks38 decks
4%synergy
Sorceries
Redress Fate
37%inclusion14 decks38 decks
31%synergy
Extinguish All Hope
32%inclusion12 decks38 decks
30%synergy
Dance of the Manse
26%inclusion10 decks38 decks
23%synergy
Time Wipe
24%inclusion9 decks38 decks
17%synergy
Sevinne's Reclamation
18%inclusion7 decks38 decks
10%synergy
Resurgent Belief
16%inclusion6 decks38 decks
14%synergy
Reanimate
13%inclusion5 decks38 decks
-3%synergy
Damn
11%inclusion4 decks38 decks
-10%synergy
Supreme Verdict
7.9%inclusion3 decks38 decks
-7%synergy
Windfall
7.9%inclusion3 decks38 decks
-5%synergy
Abuelo's Awakening
7.9%inclusion3 decks38 decks
8%synergy
Demonic Counsel
7.9%inclusion3 decks38 decks
7%synergy
Diresight
7.9%inclusion3 decks38 decks
7%synergy
Toxic Deluge
7.9%inclusion3 decks38 decks
-12%synergy
Winnowing
6.3%inclusion1 decks16 decks
5%synergy
Stock Up
6.1%inclusion2 decks33 decks
4%synergy
Blasphemous Edict
5.6%inclusion2 decks36 decks
3%synergy
Ponder
5.3%inclusion2 decks38 decks
-4%synergy
Commune with Evil
5.3%inclusion2 decks38 decks
5%synergy
Open the Vaults
5.3%inclusion2 decks38 decks
4%synergy
Split Up
5.3%inclusion2 decks38 decks
4%synergy
Plea for Guidance
5.3%inclusion2 decks38 decks
5%synergy
Idyllic Tutor
5.3%inclusion2 decks38 decks
1%synergy
Starfall Invocation
5.3%inclusion2 decks38 decks
3%synergy
Living Death
5.3%inclusion2 decks38 decks
1%synergy
Breach the Multiverse
5.3%inclusion2 decks38 decks
3%synergy
Exhume
5.3%inclusion2 decks38 decks
5%synergy
Utility Artifacts
Keys to the House
47%inclusion18 decks38 decks
47%synergy
Cloud Key
18%inclusion7 decks38 decks
15%synergy
Wayfarer's Bauble
7.9%inclusion3 decks38 decks
1%synergy
Skeleton Key
7.9%inclusion3 decks38 decks
8%synergy
Whip of Erebos
7.9%inclusion3 decks38 decks
6%synergy
Mystery Key
7.9%inclusion3 decks38 decks
8%synergy
The Key to the Vault
7.9%inclusion3 decks38 decks
5%synergy
Key to the City
7.9%inclusion3 decks38 decks
7%synergy
Swiftfoot Boots
7.9%inclusion3 decks38 decks
-16%synergy
Lightning Greaves
7.9%inclusion3 decks38 decks
-15%synergy
Mesmeric Orb
5.3%inclusion2 decks38 decks
4%synergy
Glimmerlight
5.3%inclusion2 decks38 decks
5%synergy
Bident of Thassa
5.3%inclusion2 decks38 decks
-3%synergy
Enchantments
Meat Locker // Drowned Diner
55%inclusion21 decks38 decks
55%synergy
Underwater Tunnel // Slimy Aquarium
53%inclusion20 decks38 decks
52%synergy
Derelict Attic // Widow's Walk
53%inclusion20 decks38 decks
52%synergy
Surgical Suite // Hospital Room
50%inclusion19 decks38 decks
50%synergy
Funeral Room // Awakening Hall
50%inclusion19 decks38 decks
49%synergy
Sigil of the Empty Throne
47%inclusion18 decks38 decks
42%synergy
Propaganda
45%inclusion17 decks38 decks
16%synergy
Unholy Annex // Ritual Chamber
42%inclusion16 decks38 decks
41%synergy
Ghostly Prison
42%inclusion16 decks38 decks
20%synergy
Dollmaker's Shop // Porcelain Gallery
39%inclusion15 decks38 decks
38%synergy
Grand Entryway // Elegant Rotunda
39%inclusion15 decks38 decks
39%synergy
Animate Dead
37%inclusion14 decks38 decks
27%synergy
Mirrormade
34%inclusion13 decks38 decks
24%synergy
Cemetery Tampering
29%inclusion11 decks38 decks
28%synergy
Hallowed Haunting
29%inclusion11 decks38 decks
27%synergy
Estrid's Invocation
26%inclusion10 decks38 decks
22%synergy
Ethereal Armor
26%inclusion10 decks38 decks
22%synergy
Cacophony Unleashed
24%inclusion9 decks38 decks
22%synergy
Shark Typhoon
24%inclusion9 decks38 decks
18%synergy
Extravagant Replication
21%inclusion8 decks38 decks
16%synergy
Starfield of Nyx
21%inclusion8 decks38 decks
17%synergy
Seal of Cleansing
21%inclusion8 decks38 decks
20%synergy
Monologue Tax
21%inclusion8 decks38 decks
15%synergy
Phyrexian Arena
21%inclusion8 decks38 decks
7%synergy
Mystic Remora
18%inclusion7 decks38 decks
-2%synergy
Timely Ward
18%inclusion7 decks38 decks
13%synergy
All That Glitters
18%inclusion7 decks38 decks
10%synergy
Dress Down
18%inclusion7 decks38 decks
16%synergy
Sheltered by Ghosts
18%inclusion7 decks38 decks
16%synergy
Stillness in Motion
17%inclusion5 decks30 decks
16%synergy
One with the Multiverse
16%inclusion6 decks38 decks
11%synergy
Grasp of Fate
16%inclusion6 decks38 decks
10%synergy
Necromancy
16%inclusion6 decks38 decks
11%synergy
Copy Enchantment
16%inclusion6 decks38 decks
11%synergy
Imprisoned in the Moon
13%inclusion5 decks38 decks
6%synergy
Nowhere to Run
13%inclusion5 decks38 decks
12%synergy
Court of Cunning
11%inclusion4 decks38 decks
10%synergy
Glasswing Grace
11%inclusion4 decks38 decks
8%synergy
Unable to Scream
11%inclusion4 decks38 decks
9%synergy
Blind Obedience
11%inclusion4 decks38 decks
-1%synergy
The Tale of Tamiyo
11%inclusion4 decks38 decks
10%synergy
Amphibian Downpour
11%inclusion4 decks38 decks
6%synergy
Black Market Connections
11%inclusion4 decks38 decks
-4%synergy
Virtue of Persistence
11%inclusion4 decks38 decks
9%synergy
Northern Air Temple
10%inclusion2 decks21 decks
9%synergy
The Spirit Oasis
10%inclusion2 decks21 decks
9%synergy
Southern Air Temple
8.0%inclusion2 decks25 decks
8%synergy
Staggering Insight
7.9%inclusion3 decks38 decks
6%synergy
Trapped in the Screen
7.9%inclusion3 decks38 decks
7%synergy
Demonic Covenant
7.9%inclusion3 decks38 decks
8%synergy
Battles
Invasion of Theros
11%inclusion4 decks38 decks
9%synergy
Utility Lands
Hall of Heliod's Generosity
55%inclusion21 decks38 decks
42%synergy
Bojuka Bog
29%inclusion11 decks38 decks
2%synergy
Nephalia Drownyard
18%inclusion7 decks38 decks
18%synergy
Reliquary Tower
18%inclusion7 decks38 decks
-16%synergy
Halimar Depths
16%inclusion6 decks38 decks
11%synergy
Rogue's Passage
11%inclusion4 decks38 decks
1%synergy
Cephalid Coliseum
7.9%inclusion3 decks38 decks
4%synergy
Temple of the False God
7.9%inclusion3 decks38 decks
0%synergy
Restless Reef
7.9%inclusion3 decks38 decks
7%synergy
Duskmantle, House of Shadow
5.3%inclusion2 decks38 decks
5%synergy
Takenuma, Abandoned Mire
5.3%inclusion2 decks38 decks
-1%synergy
Drownyard Temple
5.3%inclusion2 decks38 decks
5%synergy
Urborg, Tomb of Yawgmoth
5.3%inclusion2 decks38 decks
-8%synergy
Otawara, Soaring City
5.3%inclusion2 decks38 decks
-14%synergy
Mana Artifacts
Sol Ring
79%inclusion30 decks38 decks
-11%synergy
Arcane Signet
76%inclusion29 decks38 decks
-11%synergy
Azorius Signet
32%inclusion12 decks38 decks
1%synergy
Talisman of Progress
24%inclusion9 decks38 decks
-20%synergy
Orzhov Signet
24%inclusion9 decks38 decks
-9%synergy
Talisman of Dominance
21%inclusion8 decks38 decks
-29%synergy
Talisman of Hierarchy
18%inclusion7 decks38 decks
-26%synergy
Mind Stone
16%inclusion6 decks38 decks
4%synergy
Commander's Sphere
13%inclusion5 decks38 decks
-5%synergy
Dimir Signet
13%inclusion5 decks38 decks
-17%synergy
Chromatic Lantern
7.9%inclusion3 decks38 decks
-5%synergy
Thought Vessel
5.3%inclusion2 decks38 decks
-20%synergy
Lands
Swamp
97%inclusion37 decks38 decks
6%synergy
Island
97%inclusion37 decks38 decks
4%synergy
Plains
97%inclusion37 decks38 decks
5%synergy
Command Tower
95%inclusion36 decks38 decks
2%synergy
Arcane Sanctum
74%inclusion28 decks38 decks
20%synergy
Valgavoth's Lair
55%inclusion21 decks38 decks
53%synergy
Caves of Koilos
53%inclusion20 decks38 decks
17%synergy
Sunken Hollow
53%inclusion20 decks38 decks
13%synergy
Glacial Fortress
50%inclusion19 decks38 decks
8%synergy
Prairie Stream
50%inclusion19 decks38 decks
9%synergy
Exotic Orchard
47%inclusion18 decks38 decks
-11%synergy
Adarkar Wastes
47%inclusion18 decks38 decks
15%synergy
Obscura Storefront
45%inclusion17 decks38 decks
35%synergy
Temple of Deceit
42%inclusion16 decks38 decks
25%synergy
Isolated Chapel
42%inclusion16 decks38 decks
1%synergy
Underground River
42%inclusion16 decks38 decks
8%synergy
Azorius Chancery
39%inclusion15 decks38 decks
26%synergy
Temple of Enlightenment
39%inclusion15 decks38 decks
24%synergy
Temple of Silence
39%inclusion15 decks38 decks
21%synergy
Contaminated Landscape
37%inclusion14 decks38 decks
23%synergy
Dimir Aqueduct
37%inclusion14 decks38 decks
24%synergy
Drowned Catacomb
37%inclusion14 decks38 decks
-1%synergy
Orzhov Basilica
37%inclusion14 decks38 decks
22%synergy
Raffine's Tower
34%inclusion13 decks38 decks
-7%synergy
Evolving Wilds
34%inclusion13 decks38 decks
10%synergy
Hallowed Fountain
34%inclusion13 decks38 decks
-16%synergy
Godless Shrine
32%inclusion12 decks38 decks
-20%synergy
Darkwater Catacombs
26%inclusion10 decks38 decks
12%synergy
Watery Grave
26%inclusion10 decks38 decks
-25%synergy
Terramorphic Expanse
24%inclusion9 decks38 decks
8%synergy
Vault of Champions
21%inclusion8 decks38 decks
-11%synergy
Flooded Strand
21%inclusion8 decks38 decks
-17%synergy
Shipwreck Marsh
18%inclusion7 decks38 decks
-2%synergy
Skycloud Expanse
18%inclusion7 decks38 decks
3%synergy
Meticulous Archive
18%inclusion7 decks38 decks
5%synergy
Marsh Flats
18%inclusion7 decks38 decks
-18%synergy
Abandoned Campground
16%inclusion6 decks38 decks
15%synergy
Tainted Field
16%inclusion6 decks38 decks
9%synergy
Murky Sewer
16%inclusion6 decks38 decks
15%synergy
Neglected Manor
16%inclusion6 decks38 decks
15%synergy
Polluted Delta
16%inclusion6 decks38 decks
-22%synergy
Tainted Isle
13%inclusion5 decks38 decks
7%synergy
Undercity Sewers
13%inclusion5 decks38 decks
-1%synergy
Shadowy Backstreet
13%inclusion5 decks38 decks
1%synergy
Myriad Landscape
13%inclusion5 decks38 decks
5%synergy
Port Town
13%inclusion5 decks38 decks
-4%synergy
Ash Barrens
13%inclusion5 decks38 decks
2%synergy
Thriving Moor
13%inclusion5 decks38 decks
9%synergy
Shattered Sanctum
13%inclusion5 decks38 decks
-3%synergy
Deserted Beach
13%inclusion5 decks38 decks
-8%synergy
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