The Master of Keys (Commander) - Budget Core

The Master of Keys
Rank #301
43decks
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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!
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Commander Spellbook
Moxfield
Scryfall
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High Synergy Cards
Top Cards
Creatures
Instants
Sorceries
Utility Artifacts
Enchantments
Battles
Utility Lands
Mana Artifacts
Lands
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Primary Research
20%inclusion1 decks5 decks
20%synergy
Killian, Decisive Mentor
7.7%inclusion1 decks13 decks
7%synergy
High Synergy Cards
Inquisitive Glimmer
77%inclusion33 decks43 decks
70%synergy
Scrabbling Skullcrab
63%inclusion27 decks43 decks
62%synergy
Mesa Enchantress
67%inclusion29 decks43 decks
59%synergy
Cemetery Tampering
56%inclusion24 decks43 decks
55%synergy
Gravebreaker Lamia
51%inclusion22 decks43 decks
50%synergy
Seal of Cleansing
51%inclusion22 decks43 decks
50%synergy
Starfield Mystic
51%inclusion22 decks43 decks
45%synergy
Defiled Crypt // Cadaver Lab
44%inclusion19 decks43 decks
43%synergy
Demon of Fate's Design
49%inclusion21 decks43 decks
43%synergy
Doomwake Giant
49%inclusion21 decks43 decks
43%synergy
Top Cards
Entity Tracker
49%inclusion21 decks43 decks
43%synergy
Sigil of the Empty Throne
42%inclusion18 decks43 decks
36%synergy
Singularity Rupture
41%inclusion9 decks22 decks
39%synergy
Stillness in Motion
41%inclusion11 decks27 decks
40%synergy
Unable to Scream
40%inclusion17 decks43 decks
39%synergy
Victor, Valgavoth's Seneschal
40%inclusion17 decks43 decks
38%synergy
Sage of Mysteries
40%inclusion17 decks43 decks
39%synergy
Ghostly Dancers
40%inclusion17 decks43 decks
37%synergy
Fear of Impostors
37%inclusion16 decks43 decks
36%synergy
Skullsnap Nuisance
37%inclusion16 decks43 decks
37%synergy
Creatures
Mindwrack Harpy
33%inclusion14 decks43 decks
32%synergy
Fear of Sleep Paralysis
30%inclusion13 decks43 decks
25%synergy
Archon of Sun's Grace
28%inclusion12 decks43 decks
23%synergy
Gremlin Tamer
28%inclusion12 decks43 decks
27%synergy
Alseid of Life's Bounty
28%inclusion12 decks43 decks
27%synergy
Soaring Lightbringer
26%inclusion11 decks43 decks
21%synergy
Grim Guardian
26%inclusion11 decks43 decks
23%synergy
Zur the Enchanter
26%inclusion11 decks43 decks
20%synergy
Millikin
26%inclusion11 decks43 decks
25%synergy
Starnheim Courser
23%inclusion10 decks43 decks
20%synergy
Silent Hallcreeper
23%inclusion10 decks43 decks
19%synergy
Balemurk Leech
23%inclusion10 decks43 decks
23%synergy
Fear of Infinity
21%inclusion9 decks43 decks
20%synergy
Fear of Surveillance
21%inclusion9 decks43 decks
21%synergy
Aminatou, Veil Piercer
21%inclusion9 decks43 decks
20%synergy
Moon-Blessed Cleric
21%inclusion9 decks43 decks
16%synergy
Spirited Companion
21%inclusion9 decks43 decks
19%synergy
Appendage Amalgam
21%inclusion9 decks43 decks
21%synergy
Heliod, the Radiant Dawn
19%inclusion8 decks43 decks
15%synergy
Fear of Isolation
16%inclusion7 decks43 decks
16%synergy
Summon: Yojimbo
15%inclusion4 decks26 decks
14%synergy
Fear of Lost Teeth
14%inclusion6 decks43 decks
14%synergy
Archetype of Imagination
14%inclusion6 decks43 decks
9%synergy
Creeping Peeper
14%inclusion6 decks43 decks
14%synergy
Nashi, Searcher in the Dark
14%inclusion6 decks43 decks
13%synergy
Deranged Assistant
14%inclusion6 decks43 decks
14%synergy
Ondu Spiritdancer
14%inclusion6 decks43 decks
8%synergy
Callaphe, Beloved of the Sea
14%inclusion6 decks43 decks
13%synergy
Optimistic Scavenger
12%inclusion5 decks43 decks
11%synergy
Fear of the Dark
12%inclusion5 decks43 decks
11%synergy
Ajani's Chosen
12%inclusion5 decks43 decks
11%synergy
Zur, Eternal Schemer
12%inclusion5 decks43 decks
8%synergy
Summon: Primal Odin
12%inclusion3 decks26 decks
7%synergy
Summon: Shiva
9.4%inclusion3 decks32 decks
9%synergy
Solemn Simulacrum
9.3%inclusion4 decks43 decks
-4%synergy
Patrician Geist
9.3%inclusion4 decks43 decks
9%synergy
Overlord of the Floodpits
9.3%inclusion4 decks43 decks
6%synergy
Ashiok's Reaper
9.3%inclusion4 decks43 decks
9%synergy
Stitcher's Supplier
9.3%inclusion4 decks43 decks
9%synergy
Indebted Spirit
9.3%inclusion4 decks43 decks
9%synergy
Transcendent Envoy
9.3%inclusion4 decks43 decks
8%synergy
Emet-Selch of the Third Seat
7.7%inclusion2 decks26 decks
-2%synergy
Fear of Falling
7.0%inclusion3 decks43 decks
7%synergy
Fear of Failed Tests
7.0%inclusion3 decks43 decks
7%synergy
The Mindskinner
7.0%inclusion3 decks43 decks
6%synergy
The Ancient One
7.0%inclusion3 decks43 decks
7%synergy
Spectral Snatcher
7.0%inclusion3 decks43 decks
7%synergy
Nighthowler
7.0%inclusion3 decks43 decks
7%synergy
Clammy Prowler
7.0%inclusion3 decks43 decks
7%synergy
Thassa's Devourer
7.0%inclusion3 decks43 decks
7%synergy
Instants
Fact or Fiction
26%inclusion11 decks43 decks
22%synergy
Negate
23%inclusion10 decks43 decks
7%synergy
Thirst for Meaning
23%inclusion10 decks43 decks
22%synergy
Swords to Plowshares
23%inclusion10 decks43 decks
-45%synergy
Path to Exile
21%inclusion9 decks43 decks
-21%synergy
Otherworldly Gaze
19%inclusion8 decks43 decks
16%synergy
Frantic Search
16%inclusion7 decks43 decks
-2%synergy
Void Rend
16%inclusion7 decks43 decks
-18%synergy
Rowan's Grim Search
14%inclusion6 decks43 decks
14%synergy
Refute
10%inclusion4 decks41 decks
7%synergy
Drown in the Loch
9.3%inclusion4 decks43 decks
7%synergy
Forbidden Alchemy
9.3%inclusion4 decks43 decks
9%synergy
Unwanted Remake
9.3%inclusion4 decks43 decks
9%synergy
Swallowed by Leviathan
8.3%inclusion2 decks24 decks
8%synergy
Dreams of Laguna
8.0%inclusion2 decks25 decks
8%synergy
Thought Scour
7.0%inclusion3 decks43 decks
6%synergy
Drown in Dreams
7.0%inclusion3 decks43 decks
7%synergy
Live or Die
7.0%inclusion3 decks43 decks
7%synergy
Jump Scare
7.0%inclusion3 decks43 decks
7%synergy
Mortify
7.0%inclusion3 decks43 decks
-2%synergy
Get Out
7.0%inclusion3 decks43 decks
7%synergy
Utter End
7.0%inclusion3 decks43 decks
1%synergy
Don't Make a Sound
7.0%inclusion3 decks43 decks
7%synergy
Amazing Acrobatics
5.0%inclusion1 decks20 decks
4%synergy
Sorceries
Sevinne's Reclamation
28%inclusion12 decks43 decks
19%synergy
Redress Fate
23%inclusion10 decks43 decks
18%synergy
Extinguish All Hope
23%inclusion10 decks43 decks
22%synergy
Space-Time Anomaly
23%inclusion5 decks22 decks
21%synergy
Open the Vaults
16%inclusion7 decks43 decks
15%synergy
Time Wipe
16%inclusion7 decks43 decks
10%synergy
Final Vengeance
14%inclusion6 decks43 decks
14%synergy
Dance of the Manse
14%inclusion6 decks43 decks
11%synergy
Damn
12%inclusion5 decks43 decks
-9%synergy
Resurgent Belief
9.3%inclusion4 decks43 decks
7%synergy
Brilliant Restoration
9.3%inclusion4 decks43 decks
8%synergy
Inspiration from Beyond
7.3%inclusion3 decks41 decks
7%synergy
Commune with Evil
7.0%inclusion3 decks43 decks
7%synergy
Austere Command
7.0%inclusion3 decks43 decks
-2%synergy
Unmarked Grave
7.0%inclusion3 decks43 decks
6%synergy
Tome Scour
7.0%inclusion3 decks43 decks
7%synergy
Painful Truths
7.0%inclusion3 decks43 decks
4%synergy
Night's Whisper
7.0%inclusion3 decks43 decks
4%synergy
Diresight
7.0%inclusion3 decks43 decks
6%synergy
Notion Rain
7.0%inclusion3 decks43 decks
7%synergy
Compulsive Research
7.0%inclusion3 decks43 decks
6%synergy
Utility Artifacts
Wayfarer's Bauble
19%inclusion8 decks43 decks
11%synergy
Perpetual Timepiece
16%inclusion7 decks43 decks
16%synergy
Matzalantli, the Great Door
9.3%inclusion4 decks43 decks
7%synergy
The Everflowing Well
7.0%inclusion3 decks43 decks
6%synergy
Cloud Key
7.0%inclusion3 decks43 decks
4%synergy
Keys to the House
7.0%inclusion3 decks43 decks
7%synergy
Enchantments
Ethereal Armor
37%inclusion16 decks43 decks
33%synergy
Imprisoned in the Moon
35%inclusion15 decks43 decks
28%synergy
Seal of Doom
35%inclusion15 decks43 decks
35%synergy
Grasp of Fate
33%inclusion14 decks43 decks
26%synergy
The Tale of Tamiyo
33%inclusion14 decks43 decks
32%synergy
All That Glitters
33%inclusion14 decks43 decks
24%synergy
Seal of Removal
33%inclusion14 decks43 decks
32%synergy
Secrets of the Dead
33%inclusion14 decks43 decks
32%synergy
Cacophony Unleashed
30%inclusion13 decks43 decks
29%synergy
Estrid's Invocation
30%inclusion13 decks43 decks
26%synergy
Restricted Office // Lecture Hall
28%inclusion12 decks43 decks
26%synergy
The Eldest Reborn
26%inclusion11 decks43 decks
23%synergy
Derelict Attic // Widow's Walk
26%inclusion11 decks43 decks
25%synergy
Bottomless Pool // Locker Room
23%inclusion10 decks43 decks
21%synergy
Propaganda
23%inclusion10 decks43 decks
-5%synergy
Dress Down
23%inclusion10 decks43 decks
21%synergy
Glasswing Grace
21%inclusion9 decks43 decks
18%synergy
Darksteel Mutation
19%inclusion8 decks43 decks
13%synergy
Underwater Tunnel // Slimy Aquarium
19%inclusion8 decks43 decks
18%synergy
Shardmage's Rescue
19%inclusion8 decks43 decks
18%synergy
Surgical Suite // Hospital Room
19%inclusion8 decks43 decks
18%synergy
Mirrormade
19%inclusion8 decks43 decks
9%synergy
Soul Snare
19%inclusion8 decks43 decks
18%synergy
Secret Arcade // Dusty Parlor
19%inclusion8 decks43 decks
14%synergy
Ballad of the Black Flag
19%inclusion8 decks43 decks
18%synergy
King Narfi's Betrayal
16%inclusion7 decks43 decks
16%synergy
Shark Typhoon
16%inclusion7 decks43 decks
10%synergy
Sphere of Safety
16%inclusion7 decks43 decks
7%synergy
Amphibian Downpour
16%inclusion7 decks43 decks
12%synergy
Cast Out
16%inclusion7 decks43 decks
13%synergy
Minimus Containment
14%inclusion6 decks43 decks
13%synergy
Ripples of Undeath
14%inclusion6 decks43 decks
11%synergy
Extravagant Replication
14%inclusion6 decks43 decks
9%synergy
Utter Insignificance
14%inclusion6 decks43 decks
13%synergy
Chronic Flooding
14%inclusion6 decks43 decks
14%synergy
Hopeless Nightmare
14%inclusion6 decks43 decks
14%synergy
Central Elevator // Promising Stairs
14%inclusion6 decks43 decks
13%synergy
Polluted Cistern // Dim Oubliette
14%inclusion6 decks43 decks
13%synergy
Vessel of Paramnesia
14%inclusion6 decks43 decks
14%synergy
Meat Locker // Drowned Diner
14%inclusion6 decks43 decks
13%synergy
The Restoration of Eiganjo
14%inclusion6 decks43 decks
13%synergy
Witness Protection
14%inclusion6 decks43 decks
12%synergy
Cramped Vents // Access Maze
12%inclusion5 decks43 decks
9%synergy
Trapped in the Screen
12%inclusion5 decks43 decks
11%synergy
Genesis of the Daleks
12%inclusion5 decks43 decks
12%synergy
Elspeth Conquers Death
12%inclusion5 decks43 decks
11%synergy
Copy Enchantment
12%inclusion5 decks43 decks
7%synergy
Search for Azcanta
12%inclusion5 decks43 decks
11%synergy
Sheltered by Ghosts
12%inclusion5 decks43 decks
9%synergy
Phyrexian Arena
12%inclusion5 decks43 decks
-2%synergy
Battles
Invasion of Theros
16%inclusion7 decks43 decks
15%synergy
Utility Lands
Bojuka Bog
26%inclusion11 decks43 decks
-1%synergy
Hall of Heliod's Generosity
12%inclusion5 decks43 decks
-1%synergy
Nephalia Drownyard
9.3%inclusion4 decks43 decks
9%synergy
Ishgard, the Holy See
7.7%inclusion2 decks26 decks
4%synergy
Cephalid Coliseum
7.0%inclusion3 decks43 decks
3%synergy
Mana Artifacts
Arcane Signet
70%inclusion30 decks43 decks
-18%synergy
Sol Ring
60%inclusion26 decks43 decks
-29%synergy
Azorius Signet
49%inclusion21 decks43 decks
19%synergy
Dimir Signet
47%inclusion20 decks43 decks
16%synergy
Orzhov Signet
47%inclusion20 decks43 decks
14%synergy
Talisman of Progress
30%inclusion13 decks43 decks
-14%synergy
Talisman of Hierarchy
28%inclusion12 decks43 decks
-16%synergy
Talisman of Dominance
23%inclusion10 decks43 decks
-27%synergy
Commander's Sphere
21%inclusion9 decks43 decks
3%synergy
Mind Stone
16%inclusion7 decks43 decks
4%synergy
Fellwar Stone
16%inclusion7 decks43 decks
-17%synergy
Obelisk of Esper
7.0%inclusion3 decks43 decks
6%synergy
Lands
Island
100%inclusion43 decks43 decks
7%synergy
Swamp
98%inclusion42 decks43 decks
6%synergy
Plains
98%inclusion42 decks43 decks
6%synergy
Command Tower
81%inclusion35 decks43 decks
-11%synergy
Arcane Sanctum
58%inclusion25 decks43 decks
4%synergy
Contaminated Landscape
56%inclusion24 decks43 decks
42%synergy
Exotic Orchard
53%inclusion23 decks43 decks
-5%synergy
Terramorphic Expanse
49%inclusion21 decks43 decks
33%synergy
Prairie Stream
47%inclusion20 decks43 decks
6%synergy
Evolving Wilds
44%inclusion19 decks43 decks
20%synergy
Glacial Fortress
40%inclusion17 decks43 decks
-3%synergy
Sunken Hollow
40%inclusion17 decks43 decks
0%synergy
Temple of Enlightenment
40%inclusion17 decks43 decks
24%synergy
Isolated Chapel
37%inclusion16 decks43 decks
-4%synergy
Obscura Storefront
35%inclusion15 decks43 decks
25%synergy
Temple of Deceit
33%inclusion14 decks43 decks
15%synergy
Temple of Silence
33%inclusion14 decks43 decks
14%synergy
Caves of Koilos
30%inclusion13 decks43 decks
-5%synergy
Shineshadow Snarl
28%inclusion12 decks43 decks
17%synergy
Choked Estuary
28%inclusion12 decks43 decks
11%synergy
Adarkar Wastes
28%inclusion12 decks43 decks
-4%synergy
Tainted Field
26%inclusion11 decks43 decks
19%synergy
Port Town
26%inclusion11 decks43 decks
9%synergy
Tainted Isle
23%inclusion10 decks43 decks
17%synergy
Azorius Chancery
23%inclusion10 decks43 decks
10%synergy
Myriad Landscape
23%inclusion10 decks43 decks
15%synergy
Dimir Aqueduct
23%inclusion10 decks43 decks
10%synergy
Valgavoth's Lair
23%inclusion10 decks43 decks
21%synergy
Orzhov Basilica
23%inclusion10 decks43 decks
8%synergy
Path of Ancestry
23%inclusion10 decks43 decks
-5%synergy
Glasswing Grace
21%inclusion9 decks43 decks
18%synergy
Drowned Catacomb
21%inclusion9 decks43 decks
-17%synergy
Darkwater Catacombs
21%inclusion9 decks43 decks
6%synergy
Skycloud Expanse
21%inclusion9 decks43 decks
6%synergy
Irrigated Farmland
19%inclusion8 decks43 decks
11%synergy
Underground River
19%inclusion8 decks43 decks
-16%synergy
Fetid Pools
16%inclusion7 decks43 decks
10%synergy
Tranquil Cove
16%inclusion7 decks43 decks
10%synergy
Fetid Heath
14%inclusion6 decks43 decks
1%synergy
Ash Barrens
14%inclusion6 decks43 decks
3%synergy
Escape Tunnel
12%inclusion5 decks43 decks
11%synergy
Scoured Barrens
12%inclusion5 decks43 decks
5%synergy
Vibrant Cityscape
10%inclusion2 decks20 decks
9%synergy
Desolate Mire
9.3%inclusion4 decks43 decks
2%synergy
Esper Panorama
9.3%inclusion4 decks43 decks
6%synergy
Thriving Moor
9.3%inclusion4 decks43 decks
5%synergy
Dismal Backwater
9.3%inclusion4 decks43 decks
3%synergy
Sunlit Marsh
9.3%inclusion4 decks43 decks
5%synergy
Thriving Isle
7.0%inclusion3 decks43 decks
3%synergy
River of Tears
7.0%inclusion3 decks43 decks
5%synergy
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