The Master of Keys (Commander) - Optimized

The Master of Keys
Rank #315
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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
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Wan Shi Tong, Librarian
13%inclusion5 decks40 decks
8%synergy
The Legend of Kuruk
2.6%inclusion1 decks39 decks
2%synergy
Bender's Waterskin
1.2%inclusion1 decks86 decks
-1%synergy
Appa, Steadfast Guardian
1.1%inclusion1 decks88 decks
1%synergy
High Synergy Cards
Animate Dead
77%inclusion186 decks241 decks
67%synergy
Necromancy
68%inclusion164 decks241 decks
63%synergy
Ripples of Undeath
66%inclusion159 decks241 decks
63%synergy
Dress Down
63%inclusion151 decks241 decks
60%synergy
Abdel Adrian, Gorion's Ward
52%inclusion125 decks241 decks
50%synergy
Inquisitive Glimmer
58%inclusion139 decks241 decks
50%synergy
Entomb
56%inclusion136 decks241 decks
49%synergy
Mystic Remora
71%inclusion170 decks241 decks
49%synergy
Sevinne's Reclamation
57%inclusion137 decks241 decks
48%synergy
Entity Tracker
53%inclusion128 decks241 decks
47%synergy
Top Cards
Swords to Plowshares
61%inclusion148 decks241 decks
-7%synergy
Mesa Enchantress
54%inclusion129 decks241 decks
44%synergy
Mirrormade
50%inclusion121 decks241 decks
40%synergy
Blind Obedience
47%inclusion114 decks241 decks
35%synergy
Starfield Mystic
47%inclusion113 decks241 decks
40%synergy
Dance of the Dead
44%inclusion106 decks241 decks
42%synergy
Gravebreaker Lamia
44%inclusion106 decks241 decks
43%synergy
Dark Ritual
44%inclusion106 decks241 decks
25%synergy
An Offer You Can't Refuse
43%inclusion103 decks241 decks
16%synergy
Amphibian Downpour
43%inclusion103 decks241 decks
38%synergy
Game Changers
Rhystic Study
66%inclusion159 decks241 decks
33%synergy
Smothering Tithe
63%inclusion151 decks241 decks
30%synergy
Enlightened Tutor
51%inclusion124 decks241 decks
31%synergy
Demonic Tutor
46%inclusion111 decks241 decks
24%synergy
Vampiric Tutor
40%inclusion97 decks241 decks
22%synergy
Cyclonic Rift
34%inclusion82 decks241 decks
9%synergy
Thassa's Oracle
32%inclusion77 decks241 decks
22%synergy
Fierce Guardianship
32%inclusion76 decks241 decks
11%synergy
Ancient Tomb
30%inclusion73 decks241 decks
17%synergy
Necropotence
28%inclusion67 decks241 decks
21%synergy
Creatures
Demon of Fate's Design
42%inclusion102 decks241 decks
37%synergy
Scrabbling Skullcrab
41%inclusion99 decks241 decks
40%synergy
Esper Sentinel
38%inclusion91 decks241 decks
10%synergy
Overlord of the Balemurk
37%inclusion89 decks241 decks
35%synergy
Overlord of the Floodpits
37%inclusion88 decks241 decks
33%synergy
Ondu Spiritdancer
36%inclusion87 decks241 decks
30%synergy
Fear of Impostors
35%inclusion84 decks241 decks
33%synergy
Fear of Sleep Paralysis
35%inclusion84 decks241 decks
29%synergy
Doomwake Giant
35%inclusion84 decks241 decks
29%synergy
Zur, Eternal Schemer
31%inclusion74 decks241 decks
27%synergy
Victor, Valgavoth's Seneschal
30%inclusion72 decks241 decks
28%synergy
Lotho, Corrupt Shirriff
29%inclusion70 decks241 decks
12%synergy
Grand Abolisher
29%inclusion70 decks241 decks
15%synergy
Zur the Enchanter
24%inclusion58 decks241 decks
19%synergy
Orcish Bowmasters
24%inclusion57 decks241 decks
12%synergy
Heliod, the Radiant Dawn
22%inclusion54 decks241 decks
19%synergy
Hullbreaker Horror
22%inclusion54 decks241 decks
16%synergy
Grim Guardian
22%inclusion53 decks241 decks
19%synergy
Valley Floodcaller
20%inclusion49 decks241 decks
16%synergy
Ledger Shredder
20%inclusion47 decks241 decks
11%synergy
Displacer Kitten
20%inclusion47 decks241 decks
12%synergy
Moon-Blessed Cleric
20%inclusion47 decks241 decks
15%synergy
Enduring Curiosity
18%inclusion44 decks241 decks
11%synergy
Ghostly Dancers
18%inclusion43 decks241 decks
15%synergy
Soaring Lightbringer
17%inclusion42 decks241 decks
12%synergy
Silent Hallcreeper
17%inclusion42 decks241 decks
13%synergy
Balemurk Leech
15%inclusion36 decks241 decks
14%synergy
Lurrus of the Dream-Den
15%inclusion35 decks241 decks
13%synergy
Aminatou, Veil Piercer
14%inclusion34 decks241 decks
13%synergy
Opposition Agent
14%inclusion33 decks241 decks
5%synergy
Hedron Crab
13%inclusion31 decks241 decks
12%synergy
Ranger-Captain of Eos
12%inclusion29 decks241 decks
5%synergy
Psychic Frog
12%inclusion29 decks241 decks
5%synergy
Archon of Sun's Grace
12%inclusion28 decks241 decks
7%synergy
Talion, the Kindly Lord
12%inclusion28 decks241 decks
3%synergy
Drannith Magistrate
11%inclusion27 decks241 decks
3%synergy
Archetype of Imagination
11%inclusion27 decks241 decks
7%synergy
Mindwrack Harpy
11%inclusion26 decks241 decks
10%synergy
Gremlin Tamer
11%inclusion26 decks241 decks
10%synergy
Archivist of Oghma
10%inclusion25 decks241 decks
4%synergy
Overlord of the Mistmoors
10%inclusion24 decks241 decks
8%synergy
Athreos, Shroud-Veiled
9.1%inclusion22 decks241 decks
5%synergy
Faerie Mastermind
9.1%inclusion22 decks241 decks
0%synergy
Ancient Cellarspawn
9.1%inclusion22 decks241 decks
6%synergy
Skullsnap Nuisance
8.7%inclusion21 decks241 decks
8%synergy
Voice of Victory
8.4%inclusion16 decks190 decks
0%synergy
Mockingbird
8.3%inclusion20 decks241 decks
4%synergy
Nightmare Shepherd
7.9%inclusion19 decks241 decks
5%synergy
Phyrexian Metamorph
7.9%inclusion19 decks241 decks
-1%synergy
Spirited Companion
7.9%inclusion19 decks241 decks
6%synergy
Instants
Path to Exile
32%inclusion78 decks241 decks
-9%synergy
Swan Song
32%inclusion77 decks241 decks
13%synergy
Counterspell
29%inclusion71 decks241 decks
-12%synergy
Arcane Denial
29%inclusion69 decks241 decks
8%synergy
Mana Drain
28%inclusion68 decks241 decks
11%synergy
Force of Will
25%inclusion60 decks241 decks
12%synergy
Mystical Tutor
25%inclusion60 decks241 decks
13%synergy
Silence
24%inclusion57 decks241 decks
13%synergy
Force of Negation
20%inclusion49 decks241 decks
8%synergy
Flusterstorm
20%inclusion47 decks241 decks
11%synergy
Dovin's Veto
18%inclusion44 decks241 decks
-6%synergy
Demonic Consultation
18%inclusion44 decks241 decks
10%synergy
Sink into Stupor
18%inclusion44 decks241 decks
6%synergy
Intuition
18%inclusion43 decks241 decks
16%synergy
Gifts Ungiven
15%inclusion37 decks241 decks
13%synergy
Borne Upon a Wind
15%inclusion37 decks241 decks
11%synergy
Tainted Pact
15%inclusion36 decks241 decks
7%synergy
Teferi's Protection
15%inclusion36 decks241 decks
-2%synergy
Pact of Negation
15%inclusion35 decks241 decks
6%synergy
Cabal Ritual
14%inclusion34 decks241 decks
11%synergy
Brainstorm
13%inclusion32 decks241 decks
-4%synergy
Inkshield
13%inclusion31 decks241 decks
4%synergy
Mindbreak Trap
12%inclusion29 decks241 decks
5%synergy
Void Rend
12%inclusion29 decks241 decks
-21%synergy
Frantic Search
11%inclusion27 decks241 decks
-6%synergy
Thirst for Meaning
11%inclusion27 decks241 decks
10%synergy
Mental Misstep
10%inclusion25 decks241 decks
3%synergy
Otherworldly Gaze
10%inclusion25 decks241 decks
8%synergy
Into the Flood Maw
9.1%inclusion22 decks241 decks
5%synergy
Anguished Unmaking
7.9%inclusion19 decks241 decks
-17%synergy
Fell the Profane
7.5%inclusion18 decks241 decks
-1%synergy
Deadly Rollick
7.1%inclusion17 decks241 decks
-7%synergy
Negate
7.1%inclusion17 decks241 decks
-10%synergy
Utter End
6.6%inclusion16 decks241 decks
0%synergy
Chain of Vapor
6.2%inclusion15 decks241 decks
3%synergy
Muddle the Mixture
6.2%inclusion15 decks241 decks
2%synergy
Ad Nauseam
5.8%inclusion14 decks241 decks
3%synergy
Waterlogged Teachings
5.8%inclusion14 decks241 decks
1%synergy
Retraction Helix
5.4%inclusion13 decks241 decks
5%synergy
Dispel
5.4%inclusion13 decks241 decks
2%synergy
Sorceries
Windfall
29%inclusion70 decks241 decks
15%synergy
Reanimate
27%inclusion65 decks241 decks
11%synergy
Redress Fate
24%inclusion57 decks241 decks
17%synergy
Toxic Deluge
21%inclusion51 decks241 decks
2%synergy
Singularity Rupture
15%inclusion15 decks103 decks
12%synergy
Demonic Counsel
13%inclusion31 decks241 decks
12%synergy
Damn
12%inclusion30 decks241 decks
-8%synergy
Imperial Seal
12%inclusion28 decks241 decks
4%synergy
Idyllic Tutor
11%inclusion27 decks241 decks
7%synergy
Lively Dirge
11%inclusion27 decks241 decks
10%synergy
Extinguish All Hope
11%inclusion27 decks241 decks
10%synergy
Glimpse the Unthinkable
11%inclusion26 decks241 decks
10%synergy
Supreme Verdict
10%inclusion24 decks241 decks
-5%synergy
Beseech the Mirror
9.1%inclusion22 decks241 decks
5%synergy
Unmarked Grave
8.7%inclusion21 decks241 decks
7%synergy
Dance of the Manse
8.7%inclusion21 decks241 decks
5%synergy
Replenish
7.9%inclusion19 decks241 decks
6%synergy
Time Wipe
7.5%inclusion18 decks241 decks
0%synergy
Farewell
7.1%inclusion17 decks241 decks
-6%synergy
Resurgent Belief
6.2%inclusion15 decks241 decks
4%synergy
Buried Alive
6.2%inclusion15 decks241 decks
2%synergy
Ponder
5.8%inclusion14 decks241 decks
-3%synergy
Read the Bones
5.4%inclusion13 decks241 decks
1%synergy
Terminus
5.4%inclusion13 decks241 decks
1%synergy
Utility Artifacts
The One Ring
26%inclusion63 decks241 decks
12%synergy
Mesmeric Orb
21%inclusion50 decks241 decks
20%synergy
Wishclaw Talisman
19%inclusion46 decks241 decks
11%synergy
Lightning Greaves
8.3%inclusion20 decks241 decks
-14%synergy
Sensei's Divining Top
6.6%inclusion16 decks241 decks
-3%synergy
Cloud Key
5.8%inclusion14 decks241 decks
3%synergy
Enchantments
Sphere of Safety
42%inclusion101 decks241 decks
32%synergy
Secret Arcade // Dusty Parlor
39%inclusion94 decks241 decks
34%synergy
Propaganda
38%inclusion92 decks241 decks
12%synergy
Ghostly Prison
34%inclusion81 decks241 decks
12%synergy
Seal of Cleansing
32%inclusion78 decks241 decks
31%synergy
Grasp of Fate
30%inclusion73 decks241 decks
24%synergy
The Meathook Massacre
29%inclusion71 decks241 decks
26%synergy
Tinybones Joins Up
29%inclusion70 decks241 decks
28%synergy
Starfield of Nyx
26%inclusion63 decks241 decks
22%synergy
Sigil of the Empty Throne
25%inclusion61 decks241 decks
19%synergy
Estrid's Invocation
24%inclusion58 decks241 decks
19%synergy
Cemetery Tampering
24%inclusion57 decks241 decks
23%synergy
Touch the Spirit Realm
20%inclusion49 decks241 decks
18%synergy
Static Prison
20%inclusion49 decks241 decks
20%synergy
Monologue Tax
20%inclusion48 decks241 decks
14%synergy
Cacophony Unleashed
19%inclusion46 decks241 decks
17%synergy
Greater Auramancy
19%inclusion46 decks241 decks
15%synergy
Darksteel Mutation
19%inclusion45 decks241 decks
12%synergy
Seal of Removal
18%inclusion43 decks241 decks
17%synergy
Black Market Connections
17%inclusion42 decks241 decks
4%synergy
Shark Typhoon
17%inclusion41 decks241 decks
11%synergy
Out of the Tombs
16%inclusion39 decks241 decks
16%synergy
Trouble in Pairs
15%inclusion37 decks241 decks
10%synergy
Extravagant Replication
15%inclusion37 decks241 decks
10%synergy
Leyline of Anticipation
15%inclusion37 decks241 decks
11%synergy
Phyrexian Arena
15%inclusion35 decks241 decks
1%synergy
Stillness in Motion
14%inclusion26 decks182 decks
14%synergy
Timely Ward
14%inclusion34 decks241 decks
9%synergy
Defiled Crypt // Cadaver Lab
14%inclusion34 decks241 decks
13%synergy
The Tale of Tamiyo
13%inclusion32 decks241 decks
13%synergy
Polluted Cistern // Dim Oubliette
12%inclusion30 decks241 decks
12%synergy
Authority of the Consuls
12%inclusion30 decks241 decks
1%synergy
Enchanted Evening
12%inclusion28 decks241 decks
10%synergy
Mirror Room // Fractured Realm
12%inclusion28 decks241 decks
9%synergy
Imprisoned in the Moon
12%inclusion28 decks241 decks
5%synergy
Land Tax
12%inclusion28 decks241 decks
5%synergy
Sheltered by Ghosts
11%inclusion27 decks241 decks
9%synergy
Aura of Silence
11%inclusion27 decks241 decks
8%synergy
Copy Enchantment
11%inclusion27 decks241 decks
7%synergy
The Eldest Reborn
11%inclusion26 decks241 decks
8%synergy
Restricted Office // Lecture Hall
11%inclusion26 decks241 decks
9%synergy
Bottomless Pool // Locker Room
11%inclusion26 decks241 decks
9%synergy
Hallowed Haunting
10%inclusion25 decks241 decks
8%synergy
Teval's Judgment
10%inclusion19 decks187 decks
9%synergy
Ethereal Armor
10%inclusion23 decks241 decks
5%synergy
One with the Multiverse
10%inclusion23 decks241 decks
5%synergy
Court of Cunning
10%inclusion23 decks241 decks
9%synergy
Oubliette
10%inclusion23 decks241 decks
8%synergy
Nowhere to Run
9.1%inclusion22 decks241 decks
8%synergy
All That Glitters
9.1%inclusion22 decks241 decks
0%synergy
Planeswalkers
Teferi, Time Raveler
21%inclusion51 decks241 decks
13%synergy
Utility Lands
Hall of Heliod's Generosity
57%inclusion137 decks241 decks
44%synergy
Otawara, Soaring City
36%inclusion87 decks241 decks
17%synergy
Bojuka Bog
36%inclusion86 decks241 decks
8%synergy
Takenuma, Abandoned Mire
20%inclusion47 decks241 decks
13%synergy
Urza's Saga
19%inclusion45 decks241 decks
7%synergy
Serra's Sanctum
17%inclusion42 decks241 decks
16%synergy
Reliquary Tower
15%inclusion35 decks241 decks
-19%synergy
Urborg, Tomb of Yawgmoth
15%inclusion35 decks241 decks
1%synergy
Cephalid Coliseum
13%inclusion31 decks241 decks
9%synergy
Emergence Zone
12%inclusion30 decks241 decks
10%synergy
Halimar Depths
11%inclusion26 decks241 decks
6%synergy
Minamo, School at Water's Edge
7.1%inclusion17 decks241 decks
3%synergy
Eiganjo, Seat of the Empire
5.8%inclusion14 decks241 decks
1%synergy
Mana Artifacts
Sol Ring
93%inclusion224 decks241 decks
3%synergy
Arcane Signet
92%inclusion221 decks241 decks
4%synergy
Talisman of Dominance
57%inclusion137 decks241 decks
8%synergy
Talisman of Progress
51%inclusion123 decks241 decks
8%synergy
Talisman of Hierarchy
50%inclusion121 decks241 decks
7%synergy
Fellwar Stone
42%inclusion101 decks241 decks
8%synergy
Azorius Signet
37%inclusion88 decks241 decks
4%synergy
Orzhov Signet
32%inclusion77 decks241 decks
-3%synergy
Lotus Petal
24%inclusion57 decks241 decks
13%synergy
Mana Vault
24%inclusion57 decks241 decks
14%synergy
Dimir Signet
23%inclusion56 decks241 decks
-10%synergy
Chrome Mox
20%inclusion47 decks241 decks
10%synergy
Mind Stone
14%inclusion34 decks241 decks
1%synergy
Mox Opal
12%inclusion28 decks241 decks
3%synergy
Mox Diamond
12%inclusion28 decks241 decks
4%synergy
Lion's Eye Diamond
10%inclusion25 decks241 decks
8%synergy
Mox Amber
10%inclusion24 decks241 decks
4%synergy
Commander's Sphere
7.9%inclusion19 decks241 decks
-12%synergy
Thought Vessel
7.9%inclusion19 decks241 decks
-16%synergy
Basalt Monolith
5.4%inclusion13 decks241 decks
3%synergy
The Soul Stone
5.3%inclusion5 decks95 decks
3%synergy
Lands
Command Tower
95%inclusion229 decks241 decks
3%synergy
Island
90%inclusion218 decks241 decks
-2%synergy
Swamp
90%inclusion217 decks241 decks
-1%synergy
Plains
89%inclusion215 decks241 decks
-2%synergy
Watery Grave
65%inclusion156 decks241 decks
15%synergy
Hallowed Fountain
64%inclusion154 decks241 decks
15%synergy
Godless Shrine
62%inclusion150 decks241 decks
12%synergy
Polluted Delta
59%inclusion143 decks241 decks
22%synergy
Flooded Strand
59%inclusion143 decks241 decks
22%synergy
Marsh Flats
55%inclusion133 decks241 decks
19%synergy
Exotic Orchard
51%inclusion123 decks241 decks
-7%synergy
Raffine's Tower
49%inclusion117 decks241 decks
7%synergy
Caves of Koilos
47%inclusion113 decks241 decks
12%synergy
Underground River
45%inclusion108 decks241 decks
13%synergy
Adarkar Wastes
45%inclusion108 decks241 decks
14%synergy
Sea of Clouds
44%inclusion106 decks241 decks
8%synergy
Arcane Sanctum
44%inclusion106 decks241 decks
-11%synergy
Morphic Pool
42%inclusion102 decks241 decks
8%synergy
Vault of Champions
41%inclusion99 decks241 decks
8%synergy
Undercity Sewers
40%inclusion96 decks241 decks
26%synergy
Shadowy Backstreet
35%inclusion85 decks241 decks
23%synergy
Meticulous Archive
35%inclusion84 decks241 decks
21%synergy
Glacial Fortress
33%inclusion80 decks241 decks
-6%synergy
Isolated Chapel
29%inclusion70 decks241 decks
-9%synergy
Tundra
25%inclusion61 decks241 decks
9%synergy
City of Brass
24%inclusion59 decks241 decks
9%synergy
Underground Sea
24%inclusion58 decks241 decks
8%synergy
Scrubland
24%inclusion58 decks241 decks
8%synergy
Azorius Chancery
24%inclusion57 decks241 decks
9%synergy
Drowned Catacomb
23%inclusion56 decks241 decks
-12%synergy
Bloodstained Mire
22%inclusion54 decks241 decks
11%synergy
Dimir Aqueduct
22%inclusion53 decks241 decks
8%synergy
Prairie Stream
22%inclusion52 decks241 decks
-19%synergy
Orzhov Basilica
21%inclusion51 decks241 decks
5%synergy
Valgavoth's Lair
21%inclusion51 decks241 decks
18%synergy
Floodfarm Verge
21%inclusion50 decks241 decks
10%synergy
Misty Rainforest
21%inclusion50 decks241 decks
9%synergy
Gloomlake Verge
21%inclusion50 decks241 decks
10%synergy
Tainted Isle
20%inclusion49 decks241 decks
14%synergy
Temple of Deceit
20%inclusion49 decks241 decks
2%synergy
Temple of Silence
20%inclusion48 decks241 decks
0%synergy
Windswept Heath
20%inclusion48 decks241 decks
10%synergy
Tainted Field
20%inclusion47 decks241 decks
12%synergy
Temple of Enlightenment
20%inclusion47 decks241 decks
2%synergy
Sunken Hollow
20%inclusion47 decks241 decks
-20%synergy
Mana Confluence
20%inclusion47 decks241 decks
6%synergy
Terramorphic Expanse
19%inclusion46 decks241 decks
2%synergy
Verdant Catacombs
19%inclusion46 decks241 decks
9%synergy
Scalding Tarn
19%inclusion45 decks241 decks
7%synergy
Sink into Stupor
18%inclusion44 decks241 decks
6%synergy
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