The Master of Keys (Commander) - Optimized Mill

The Master of Keys
Rank #316
21decks
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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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Commander Spellbook
Moxfield
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Top Cards
Game Changers
Creatures
Instants
Sorceries
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
Back to Top
Necromancy
76%inclusion16 decks21 decks
72%synergy
Animate Dead
81%inclusion17 decks21 decks
71%synergy
Dress Down
71%inclusion15 decks21 decks
69%synergy
Ripples of Undeath
71%inclusion15 decks21 decks
69%synergy
Sevinne's Reclamation
76%inclusion16 decks21 decks
67%synergy
Mystic Remora
86%inclusion18 decks21 decks
64%synergy
Mesmeric Orb
62%inclusion13 decks21 decks
61%synergy
Entity Tracker
67%inclusion14 decks21 decks
60%synergy
Abdel Adrian, Gorion's Ward
57%inclusion12 decks21 decks
55%synergy
Dance of the Dead
57%inclusion12 decks21 decks
55%synergy
Top Cards
Entomb
57%inclusion12 decks21 decks
50%synergy
Blind Obedience
57%inclusion12 decks21 decks
45%synergy
Amphibian Downpour
57%inclusion12 decks21 decks
53%synergy
Swords to Plowshares
57%inclusion12 decks21 decks
-11%synergy
Scrabbling Skullcrab
52%inclusion11 decks21 decks
51%synergy
Inquisitive Glimmer
48%inclusion10 decks21 decks
40%synergy
Dark Ritual
48%inclusion10 decks21 decks
28%synergy
Lotho, Corrupt Shirriff
43%inclusion9 decks21 decks
26%synergy
An Offer You Can't Refuse
43%inclusion9 decks21 decks
17%synergy
Tinybones Joins Up
43%inclusion9 decks21 decks
42%synergy
Game Changers
Rhystic Study
76%inclusion16 decks21 decks
44%synergy
Smothering Tithe
67%inclusion14 decks21 decks
34%synergy
Enlightened Tutor
57%inclusion12 decks21 decks
37%synergy
Demonic Tutor
43%inclusion9 decks21 decks
21%synergy
Thassa's Oracle
38%inclusion8 decks21 decks
28%synergy
Vampiric Tutor
38%inclusion8 decks21 decks
20%synergy
Ancient Tomb
29%inclusion6 decks21 decks
15%synergy
Necropotence
29%inclusion6 decks21 decks
22%synergy
Force of Will
29%inclusion6 decks21 decks
16%synergy
Mystical Tutor
29%inclusion6 decks21 decks
17%synergy
Creatures
Starfield Mystic
38%inclusion8 decks21 decks
31%synergy
Overlord of the Floodpits
38%inclusion8 decks21 decks
34%synergy
Overlord of the Balemurk
38%inclusion8 decks21 decks
36%synergy
Mesa Enchantress
38%inclusion8 decks21 decks
29%synergy
Gravebreaker Lamia
33%inclusion7 decks21 decks
32%synergy
Fear of Impostors
33%inclusion7 decks21 decks
32%synergy
Zur, Eternal Schemer
33%inclusion7 decks21 decks
30%synergy
Demon of Fate's Design
29%inclusion6 decks21 decks
23%synergy
Esper Sentinel
29%inclusion6 decks21 decks
1%synergy
Grand Abolisher
29%inclusion6 decks21 decks
14%synergy
Ledger Shredder
29%inclusion6 decks21 decks
20%synergy
Displacer Kitten
24%inclusion5 decks21 decks
16%synergy
Hedron Crab
24%inclusion5 decks21 decks
23%synergy
Zur the Enchanter
24%inclusion5 decks21 decks
19%synergy
Orcish Bowmasters
24%inclusion5 decks21 decks
13%synergy
Grand Arbiter Augustin IV
19%inclusion4 decks21 decks
13%synergy
Lurrus of the Dream-Den
19%inclusion4 decks21 decks
17%synergy
Victor, Valgavoth's Seneschal
19%inclusion4 decks21 decks
17%synergy
Enduring Curiosity
19%inclusion4 decks21 decks
12%synergy
Fear of Sleep Paralysis
19%inclusion4 decks21 decks
13%synergy
Laboratory Maniac
19%inclusion4 decks21 decks
16%synergy
Doomwake Giant
19%inclusion4 decks21 decks
13%synergy
Grim Guardian
19%inclusion4 decks21 decks
16%synergy
Alseid of Life's Bounty
19%inclusion4 decks21 decks
18%synergy
Hullbreaker Horror
19%inclusion4 decks21 decks
13%synergy
Bruvac the Grandiloquent
14%inclusion3 decks21 decks
14%synergy
Valley Floodcaller
14%inclusion3 decks21 decks
10%synergy
Gremlin Tamer
14%inclusion3 decks21 decks
13%synergy
Balemurk Leech
14%inclusion3 decks21 decks
14%synergy
Heliod, the Radiant Dawn
14%inclusion3 decks21 decks
10%synergy
Ondu Spiritdancer
14%inclusion3 decks21 decks
8%synergy
Psychic Frog
14%inclusion3 decks21 decks
8%synergy
Dauthi Voidwalker
14%inclusion3 decks21 decks
8%synergy
Archivist of Oghma
10%inclusion2 decks21 decks
3%synergy
Peregrine Drake
10%inclusion2 decks21 decks
6%synergy
Opposition Agent
10%inclusion2 decks21 decks
0%synergy
Snapcaster Mage
10%inclusion2 decks21 decks
8%synergy
Archon of Sun's Grace
10%inclusion2 decks21 decks
5%synergy
Walking Ballista
10%inclusion2 decks21 decks
7%synergy
Zellix, Sanity Flayer
10%inclusion2 decks21 decks
9%synergy
Sage of Mysteries
10%inclusion2 decks21 decks
9%synergy
Heliod, Sun-Crowned
10%inclusion2 decks21 decks
6%synergy
Silent Hallcreeper
10%inclusion2 decks21 decks
5%synergy
Moon-Blessed Cleric
10%inclusion2 decks21 decks
5%synergy
Leonin Relic-Warder
10%inclusion2 decks21 decks
9%synergy
Enduring Tenacity
10%inclusion2 decks21 decks
2%synergy
Skullsnap Nuisance
10%inclusion2 decks21 decks
9%synergy
Talion, the Kindly Lord
10%inclusion2 decks21 decks
1%synergy
Faerie Mastermind
10%inclusion2 decks21 decks
0%synergy
Mockingbird
10%inclusion2 decks21 decks
5%synergy
Instants
Swan Song
38%inclusion8 decks21 decks
19%synergy
Dovin's Veto
33%inclusion7 decks21 decks
9%synergy
Path to Exile
33%inclusion7 decks21 decks
-9%synergy
Mana Drain
29%inclusion6 decks21 decks
11%synergy
Silence
29%inclusion6 decks21 decks
18%synergy
Void Rend
24%inclusion5 decks21 decks
-9%synergy
Arcane Denial
24%inclusion5 decks21 decks
4%synergy
Fierce Guardianship
24%inclusion5 decks21 decks
3%synergy
Cyclonic Rift
24%inclusion5 decks21 decks
-1%synergy
Teferi's Protection
19%inclusion4 decks21 decks
2%synergy
Brainstorm
19%inclusion4 decks21 decks
2%synergy
Intuition
19%inclusion4 decks21 decks
17%synergy
Cabal Ritual
19%inclusion4 decks21 decks
16%synergy
Frantic Search
14%inclusion3 decks21 decks
-3%synergy
Retraction Helix
14%inclusion3 decks21 decks
14%synergy
Negate
14%inclusion3 decks21 decks
-2%synergy
Brain Freeze
14%inclusion3 decks21 decks
14%synergy
Gifts Ungiven
14%inclusion3 decks21 decks
12%synergy
Force of Negation
14%inclusion3 decks21 decks
2%synergy
Sink into Stupor
14%inclusion3 decks21 decks
2%synergy
Counterspell
14%inclusion3 decks21 decks
-27%synergy
Borne Upon a Wind
14%inclusion3 decks21 decks
10%synergy
Pact of Negation
14%inclusion3 decks21 decks
6%synergy
Pongify
10%inclusion2 decks21 decks
7%synergy
Muddle the Mixture
10%inclusion2 decks21 decks
5%synergy
Drown in the Loch
10%inclusion2 decks21 decks
7%synergy
Tainted Pact
10%inclusion2 decks21 decks
2%synergy
Orim's Chant
10%inclusion2 decks21 decks
8%synergy
Lim-Dûl's Vault
10%inclusion2 decks21 decks
6%synergy
Mindbreak Trap
10%inclusion2 decks21 decks
3%synergy
Darkblast
10%inclusion2 decks21 decks
9%synergy
Strix Serenade
10%inclusion2 decks21 decks
6%synergy
Flusterstorm
10%inclusion2 decks21 decks
1%synergy
Prismatic Strands
10%inclusion2 decks21 decks
9%synergy
Perplex
10%inclusion2 decks21 decks
8%synergy
Ad Nauseam
10%inclusion2 decks21 decks
7%synergy
Demonic Consultation
10%inclusion2 decks21 decks
1%synergy
Otherworldly Gaze
10%inclusion2 decks21 decks
7%synergy
Miscast
10%inclusion2 decks21 decks
8%synergy
Sorceries
Windfall
33%inclusion7 decks21 decks
19%synergy
Demonic Counsel
24%inclusion5 decks21 decks
23%synergy
Reanimate
24%inclusion5 decks21 decks
8%synergy
Lively Dirge
19%inclusion4 decks21 decks
18%synergy
Farewell
14%inclusion3 decks21 decks
1%synergy
Glimpse the Unthinkable
14%inclusion3 decks21 decks
14%synergy
Extinguish All Hope
14%inclusion3 decks21 decks
13%synergy
Maddening Cacophony
14%inclusion3 decks21 decks
13%synergy
Supreme Verdict
10%inclusion2 decks21 decks
-5%synergy
Unmarked Grave
10%inclusion2 decks21 decks
8%synergy
Imperial Seal
10%inclusion2 decks21 decks
2%synergy
Idyllic Tutor
10%inclusion2 decks21 decks
5%synergy
Doomsday
10%inclusion2 decks21 decks
9%synergy
Buried Alive
10%inclusion2 decks21 decks
5%synergy
Rite of Oblivion
10%inclusion2 decks21 decks
9%synergy
Toxic Deluge
10%inclusion2 decks21 decks
-10%synergy
Damn
10%inclusion2 decks21 decks
-11%synergy
Fractured Sanity
10%inclusion2 decks21 decks
9%synergy
Dance of the Manse
10%inclusion2 decks21 decks
6%synergy
Singularity Rupture
8.3%inclusion1 decks12 decks
6%synergy
Space-Time Anomaly
8.3%inclusion1 decks12 decks
7%synergy
Utility Artifacts
The One Ring
24%inclusion5 decks21 decks
10%synergy
Wishclaw Talisman
19%inclusion4 decks21 decks
11%synergy
Altar of the Brood
19%inclusion4 decks21 decks
18%synergy
Lightning Greaves
14%inclusion3 decks21 decks
-8%synergy
Sensei's Divining Top
10%inclusion2 decks21 decks
-1%synergy
Mindcrank
10%inclusion2 decks21 decks
7%synergy
Isochron Scepter
10%inclusion2 decks21 decks
7%synergy
The Darkness Crystal
7.1%inclusion1 decks14 decks
5%synergy
Enchantments
Mirrormade
43%inclusion9 decks21 decks
33%synergy
Ghostly Prison
38%inclusion8 decks21 decks
17%synergy
Propaganda
38%inclusion8 decks21 decks
12%synergy
The Meathook Massacre
33%inclusion7 decks21 decks
30%synergy
Grasp of Fate
33%inclusion7 decks21 decks
27%synergy
Seal of Cleansing
33%inclusion7 decks21 decks
32%synergy
Secret Arcade // Dusty Parlor
33%inclusion7 decks21 decks
28%synergy
Touch the Spirit Realm
29%inclusion6 decks21 decks
26%synergy
Authority of the Consuls
29%inclusion6 decks21 decks
18%synergy
Estrid's Invocation
29%inclusion6 decks21 decks
24%synergy
Sphere of Safety
29%inclusion6 decks21 decks
19%synergy
Cemetery Tampering
29%inclusion6 decks21 decks
28%synergy
Static Prison
29%inclusion6 decks21 decks
28%synergy
Black Market Connections
29%inclusion6 decks21 decks
15%synergy
Cacophony Unleashed
24%inclusion5 decks21 decks
22%synergy
Out of the Tombs
24%inclusion5 decks21 decks
23%synergy
Starfield of Nyx
24%inclusion5 decks21 decks
20%synergy
Solitary Confinement
24%inclusion5 decks21 decks
22%synergy
Exquisite Blood
19%inclusion4 decks21 decks
13%synergy
The Tale of Tamiyo
19%inclusion4 decks21 decks
19%synergy
Leyline of Anticipation
19%inclusion4 decks21 decks
14%synergy
Land Tax
19%inclusion4 decks21 decks
13%synergy
Nowhere to Run
19%inclusion4 decks21 decks
18%synergy
Greater Auramancy
19%inclusion4 decks21 decks
15%synergy
Trouble in Pairs
19%inclusion4 decks21 decks
13%synergy
Counterbalance
14%inclusion3 decks21 decks
13%synergy
Imprisoned in the Moon
14%inclusion3 decks21 decks
8%synergy
Chronic Flooding
14%inclusion3 decks21 decks
14%synergy
Attunement
14%inclusion3 decks21 decks
14%synergy
Copy Enchantment
14%inclusion3 decks21 decks
10%synergy
Monologue Tax
14%inclusion3 decks21 decks
8%synergy
Enchanted Evening
14%inclusion3 decks21 decks
13%synergy
Copy Land
14%inclusion3 decks21 decks
14%synergy
Sheltered by Ghosts
14%inclusion3 decks21 decks
12%synergy
Ethereal Armor
14%inclusion3 decks21 decks
10%synergy
Phyrexian Arena
14%inclusion3 decks21 decks
0%synergy
Stillness in Motion
11%inclusion2 decks19 decks
10%synergy
Endless Evil
10%inclusion2 decks21 decks
9%synergy
Darksteel Mutation
10%inclusion2 decks21 decks
3%synergy
Founding the Third Path
10%inclusion2 decks21 decks
9%synergy
Court of Cunning
10%inclusion2 decks21 decks
9%synergy
Lunar Force
10%inclusion2 decks21 decks
9%synergy
Psychic Corrosion
10%inclusion2 decks21 decks
8%synergy
Rule of Law
10%inclusion2 decks21 decks
7%synergy
Hopeless Nightmare
10%inclusion2 decks21 decks
9%synergy
Copy Artifact
10%inclusion2 decks21 decks
8%synergy
Charitable Levy
10%inclusion2 decks21 decks
9%synergy
Shark Typhoon
10%inclusion2 decks21 decks
4%synergy
Karmic Justice
10%inclusion2 decks21 decks
7%synergy
All That Glitters
10%inclusion2 decks21 decks
1%synergy
Planeswalkers
Teferi, Time Raveler
24%inclusion5 decks21 decks
15%synergy
Ashiok, Dream Render
10%inclusion2 decks21 decks
8%synergy
Utility Lands
Bojuka Bog
38%inclusion8 decks21 decks
11%synergy
Otawara, Soaring City
38%inclusion8 decks21 decks
19%synergy
Hall of Heliod's Generosity
29%inclusion6 decks21 decks
15%synergy
Cephalid Coliseum
29%inclusion6 decks21 decks
25%synergy
Serra's Sanctum
24%inclusion5 decks21 decks
22%synergy
Takenuma, Abandoned Mire
24%inclusion5 decks21 decks
17%synergy
Shizo, Death's Storehouse
14%inclusion3 decks21 decks
13%synergy
Urza's Saga
14%inclusion3 decks21 decks
2%synergy
Reliquary Tower
14%inclusion3 decks21 decks
-19%synergy
Emergence Zone
10%inclusion2 decks21 decks
7%synergy
Eiganjo, Seat of the Empire
10%inclusion2 decks21 decks
4%synergy
Temple of the False God
10%inclusion2 decks21 decks
2%synergy
Urborg, Tomb of Yawgmoth
10%inclusion2 decks21 decks
-4%synergy
Rogue's Passage
10%inclusion2 decks21 decks
0%synergy
Jidoor, Aristocratic Capital
7.1%inclusion1 decks14 decks
6%synergy
Mistrise Village
5.3%inclusion1 decks19 decks
1%synergy
Mana Artifacts
Sol Ring
100%inclusion21 decks21 decks
10%synergy
Arcane Signet
86%inclusion18 decks21 decks
-2%synergy
Talisman of Dominance
76%inclusion16 decks21 decks
27%synergy
Talisman of Progress
71%inclusion15 decks21 decks
29%synergy
Talisman of Hierarchy
71%inclusion15 decks21 decks
28%synergy
Fellwar Stone
33%inclusion7 decks21 decks
-1%synergy
Azorius Signet
24%inclusion5 decks21 decks
-9%synergy
Chrome Mox
24%inclusion5 decks21 decks
14%synergy
Lotus Petal
19%inclusion4 decks21 decks
8%synergy
Dimir Signet
19%inclusion4 decks21 decks
-14%synergy
Orzhov Signet
19%inclusion4 decks21 decks
-16%synergy
Mox Opal
19%inclusion4 decks21 decks
10%synergy
Lion's Eye Diamond
19%inclusion4 decks21 decks
17%synergy
Mana Vault
14%inclusion3 decks21 decks
5%synergy
Mox Diamond
14%inclusion3 decks21 decks
7%synergy
Everflowing Chalice
10%inclusion2 decks21 decks
7%synergy
Mox Amber
10%inclusion2 decks21 decks
3%synergy
Hourglass of the Lost
10%inclusion2 decks21 decks
9%synergy
Lands
Command Tower
100%inclusion21 decks21 decks
8%synergy
Island
90%inclusion19 decks21 decks
-2%synergy
Swamp
86%inclusion18 decks21 decks
-5%synergy
Plains
86%inclusion18 decks21 decks
-6%synergy
Hallowed Fountain
76%inclusion16 decks21 decks
27%synergy
Watery Grave
76%inclusion16 decks21 decks
27%synergy
Exotic Orchard
71%inclusion15 decks21 decks
13%synergy
Godless Shrine
67%inclusion14 decks21 decks
17%synergy
Caves of Koilos
62%inclusion13 decks21 decks
27%synergy
Adarkar Wastes
62%inclusion13 decks21 decks
32%synergy
Polluted Delta
62%inclusion13 decks21 decks
25%synergy
Flooded Strand
62%inclusion13 decks21 decks
24%synergy
Sea of Clouds
52%inclusion11 decks21 decks
16%synergy
Underground River
52%inclusion11 decks21 decks
20%synergy
Morphic Pool
52%inclusion11 decks21 decks
18%synergy
Marsh Flats
52%inclusion11 decks21 decks
16%synergy
Vault of Champions
43%inclusion9 decks21 decks
10%synergy
Undercity Sewers
38%inclusion8 decks21 decks
24%synergy
Shadowy Backstreet
38%inclusion8 decks21 decks
26%synergy
Raffine's Tower
38%inclusion8 decks21 decks
-3%synergy
Arcane Sanctum
38%inclusion8 decks21 decks
-16%synergy
Mana Confluence
33%inclusion7 decks21 decks
19%synergy
City of Brass
33%inclusion7 decks21 decks
18%synergy
Valgavoth's Lair
29%inclusion6 decks21 decks
26%synergy
Meticulous Archive
29%inclusion6 decks21 decks
15%synergy
Glacial Fortress
24%inclusion5 decks21 decks
-15%synergy
Windswept Heath
24%inclusion5 decks21 decks
14%synergy
Prairie Stream
24%inclusion5 decks21 decks
-17%synergy
Isolated Chapel
24%inclusion5 decks21 decks
-14%synergy
Gloomlake Verge
24%inclusion5 decks21 decks
13%synergy
Bloodstained Mire
24%inclusion5 decks21 decks
13%synergy
Tainted Isle
19%inclusion4 decks21 decks
13%synergy
Tundra
19%inclusion4 decks21 decks
3%synergy
Misty Rainforest
19%inclusion4 decks21 decks
8%synergy
Azorius Chancery
19%inclusion4 decks21 decks
4%synergy
Tainted Field
19%inclusion4 decks21 decks
12%synergy
Underground Sea
19%inclusion4 decks21 decks
3%synergy
Verdant Catacombs
19%inclusion4 decks21 decks
9%synergy
Drowned Catacomb
19%inclusion4 decks21 decks
-16%synergy
Orzhov Basilica
19%inclusion4 decks21 decks
3%synergy
Arid Mesa
19%inclusion4 decks21 decks
9%synergy
Scrubland
19%inclusion4 decks21 decks
3%synergy
Sunken Hollow
19%inclusion4 decks21 decks
-21%synergy
Temple of Silence
19%inclusion4 decks21 decks
-1%synergy
Clearwater Pathway
14%inclusion3 decks21 decks
7%synergy
Brightclimb Pathway
14%inclusion3 decks21 decks
7%synergy
Temple of Deceit
14%inclusion3 decks21 decks
-4%synergy
Dimir Aqueduct
14%inclusion3 decks21 decks
0%synergy
Port Town
14%inclusion3 decks21 decks
-3%synergy
Snow-Covered Island
14%inclusion3 decks21 decks
11%synergy
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