The Master of Keys (Commander) - Expensive Core

The Master of Keys
Rank #315
36decks
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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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Sorceries
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Enchantments
Battles
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Utility Lands
Mana Artifacts
Lands
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Ripples of Undeath
75%inclusion27 decks36 decks
72%synergy
Entity Tracker
69%inclusion25 decks36 decks
63%synergy
Animate Dead
69%inclusion25 decks36 decks
60%synergy
Necromancy
64%inclusion23 decks36 decks
59%synergy
Hall of Heliod's Generosity
72%inclusion26 decks36 decks
59%synergy
Inquisitive Glimmer
67%inclusion24 decks36 decks
59%synergy
Grasp of Fate
61%inclusion22 decks36 decks
55%synergy
Mesa Enchantress
61%inclusion22 decks36 decks
52%synergy
Gravebreaker Lamia
50%inclusion18 decks36 decks
49%synergy
Overlord of the Balemurk
50%inclusion18 decks36 decks
48%synergy
Top Cards
Overlord of the Floodpits
50%inclusion18 decks36 decks
46%synergy
Demon of Fate's Design
50%inclusion18 decks36 decks
44%synergy
Dress Down
50%inclusion18 decks36 decks
47%synergy
Ghostly Prison
47%inclusion17 decks36 decks
26%synergy
Fear of Impostors
47%inclusion17 decks36 decks
46%synergy
Zur, Eternal Schemer
47%inclusion17 decks36 decks
44%synergy
Mystic Remora
47%inclusion17 decks36 decks
26%synergy
Propaganda
47%inclusion17 decks36 decks
21%synergy
Sevinne's Reclamation
44%inclusion16 decks36 decks
36%synergy
Starfield Mystic
44%inclusion16 decks36 decks
38%synergy
Game Changers
Notion Thief
8.3%inclusion3 decks36 decks
1%synergy
Thassa's Oracle
8.3%inclusion3 decks36 decks
-2%synergy
Enlightened Tutor
5.6%inclusion2 decks36 decks
-15%synergy
Teferi's Protection
5.6%inclusion2 decks36 decks
-11%synergy
Demonic Tutor
5.6%inclusion2 decks36 decks
-16%synergy
Necropotence
5.6%inclusion2 decks36 decks
-1%synergy
Narset, Parter of Veils
5.6%inclusion2 decks36 decks
2%synergy
Cyclonic Rift
5.6%inclusion2 decks36 decks
-19%synergy
Creatures
Scrabbling Skullcrab
42%inclusion15 decks36 decks
41%synergy
Heliod, the Radiant Dawn
39%inclusion14 decks36 decks
35%synergy
Fear of Sleep Paralysis
39%inclusion14 decks36 decks
33%synergy
Ondu Spiritdancer
36%inclusion13 decks36 decks
30%synergy
Doomwake Giant
36%inclusion13 decks36 decks
30%synergy
Victor, Valgavoth's Seneschal
33%inclusion12 decks36 decks
31%synergy
Grim Guardian
31%inclusion11 decks36 decks
28%synergy
Enduring Curiosity
31%inclusion11 decks36 decks
23%synergy
Summon: Yojimbo
27%inclusion6 decks22 decks
26%synergy
Lotho, Corrupt Shirriff
22%inclusion8 decks36 decks
5%synergy
Moon-Blessed Cleric
19%inclusion7 decks36 decks
15%synergy
Ghostly Dancers
19%inclusion7 decks36 decks
17%synergy
Sage of Mysteries
19%inclusion7 decks36 decks
19%synergy
Silent Hallcreeper
19%inclusion7 decks36 decks
15%synergy
Zur the Enchanter
19%inclusion7 decks36 decks
14%synergy
Archon of Sun's Grace
17%inclusion6 decks36 decks
12%synergy
Balemurk Leech
17%inclusion6 decks36 decks
16%synergy
Witch Enchanter
17%inclusion6 decks36 decks
10%synergy
Overlord of the Mistmoors
17%inclusion6 decks36 decks
14%synergy
Esper Sentinel
14%inclusion5 decks36 decks
-14%synergy
Boggart Trawler
14%inclusion5 decks36 decks
11%synergy
Sun Titan
14%inclusion5 decks36 decks
5%synergy
Aminatou, Veil Piercer
14%inclusion5 decks36 decks
12%synergy
Abdel Adrian, Gorion's Ward
14%inclusion5 decks36 decks
12%synergy
Alseid of Life's Bounty
14%inclusion5 decks36 decks
12%synergy
Ledger Shredder
14%inclusion5 decks36 decks
5%synergy
Astelli Reclaimer
13%inclusion2 decks15 decks
13%synergy
Nashi, Searcher in the Dark
11%inclusion4 decks36 decks
11%synergy
Spirited Companion
11%inclusion4 decks36 decks
9%synergy
Valgavoth, Terror Eater
11%inclusion4 decks36 decks
8%synergy
Soaring Lightbringer
11%inclusion4 decks36 decks
6%synergy
Skullsnap Nuisance
11%inclusion4 decks36 decks
11%synergy
Grand Abolisher
11%inclusion4 decks36 decks
-3%synergy
Summon: Anima
9.1%inclusion2 decks22 decks
9%synergy
Summon: Primal Odin
9.1%inclusion2 decks22 decks
5%synergy
Summon: Knights of Round
9.1%inclusion2 decks22 decks
6%synergy
Summon: Bahamut
9.1%inclusion2 decks22 decks
8%synergy
Doom Whisperer
8.3%inclusion3 decks36 decks
7%synergy
Laboratory Maniac
8.3%inclusion3 decks36 decks
5%synergy
Auramancer
8.3%inclusion3 decks36 decks
5%synergy
Lurrus of the Dream-Den
8.3%inclusion3 decks36 decks
7%synergy
Valley Floodcaller
8.3%inclusion3 decks36 decks
4%synergy
Hedron Crab
8.3%inclusion3 decks36 decks
8%synergy
Loran of the Third Path
8.3%inclusion3 decks36 decks
5%synergy
Ancient Cellarspawn
8.3%inclusion3 decks36 decks
5%synergy
Mindwrack Harpy
8.3%inclusion3 decks36 decks
8%synergy
Archetype of Imagination
8.3%inclusion3 decks36 decks
4%synergy
Umbral Collar Zealot
6.7%inclusion1 decks15 decks
6%synergy
High Fae Trickster
5.9%inclusion2 decks34 decks
1%synergy
The Mindskinner
5.6%inclusion2 decks36 decks
5%synergy
Instants
Swords to Plowshares
42%inclusion15 decks36 decks
-27%synergy
An Offer You Can't Refuse
36%inclusion13 decks36 decks
10%synergy
Counterspell
33%inclusion12 decks36 decks
-8%synergy
Path to Exile
31%inclusion11 decks36 decks
-11%synergy
Swan Song
31%inclusion11 decks36 decks
11%synergy
Entomb
28%inclusion10 decks36 decks
21%synergy
Arcane Denial
25%inclusion9 decks36 decks
5%synergy
Fell the Profane
19%inclusion7 decks36 decks
11%synergy
Dark Ritual
19%inclusion7 decks36 decks
0%synergy
Void Rend
19%inclusion7 decks36 decks
-14%synergy
Sink into Stupor
17%inclusion6 decks36 decks
4%synergy
Dovin's Veto
17%inclusion6 decks36 decks
-8%synergy
Frantic Search
14%inclusion5 decks36 decks
-3%synergy
Mana Drain
14%inclusion5 decks36 decks
-4%synergy
Fact or Fiction
11%inclusion4 decks36 decks
7%synergy
Thirst for Meaning
11%inclusion4 decks36 decks
10%synergy
Thought Scour
11%inclusion4 decks36 decks
10%synergy
Inkshield
11%inclusion4 decks36 decks
2%synergy
Brainstorm
8.3%inclusion3 decks36 decks
-9%synergy
Dawn's Truce
8.3%inclusion3 decks36 decks
4%synergy
Silence
8.3%inclusion3 decks36 decks
-2%synergy
Otherworldly Gaze
8.3%inclusion3 decks36 decks
6%synergy
Anguished Unmaking
8.3%inclusion3 decks36 decks
-16%synergy
Generous Gift
8.3%inclusion3 decks36 decks
-6%synergy
Slip Out the Back
8.3%inclusion3 decks36 decks
7%synergy
Consult the Star Charts
6.7%inclusion1 decks15 decks
6%synergy
Simulacrum
5.6%inclusion2 decks36 decks
6%synergy
Negate
5.6%inclusion2 decks36 decks
-11%synergy
Malakir Rebirth
5.6%inclusion2 decks36 decks
1%synergy
Force of Negation
5.6%inclusion2 decks36 decks
-6%synergy
Survive the Night
5.6%inclusion2 decks36 decks
6%synergy
Mindbreak Trap
5.6%inclusion2 decks36 decks
-1%synergy
Angel's Grace
5.6%inclusion2 decks36 decks
3%synergy
Sejiri Shelter
5.6%inclusion2 decks36 decks
4%synergy
Ephemerate
5.6%inclusion2 decks36 decks
2%synergy
Flusterstorm
5.6%inclusion2 decks36 decks
-3%synergy
Into the Flood Maw
5.6%inclusion2 decks36 decks
2%synergy
Snap
5.6%inclusion2 decks36 decks
4%synergy
Sorceries
Redress Fate
42%inclusion15 decks36 decks
35%synergy
Reanimate
33%inclusion12 decks36 decks
17%synergy
Windfall
31%inclusion11 decks36 decks
17%synergy
Toxic Deluge
28%inclusion10 decks36 decks
8%synergy
Dance of the Manse
22%inclusion8 decks36 decks
18%synergy
Damn
19%inclusion7 decks36 decks
-1%synergy
Replenish
14%inclusion5 decks36 decks
12%synergy
Space-Time Anomaly
13%inclusion2 decks15 decks
12%synergy
Extinguish All Hope
11%inclusion4 decks36 decks
9%synergy
Supreme Verdict
11%inclusion4 decks36 decks
-4%synergy
Resurgent Belief
11%inclusion4 decks36 decks
9%synergy
Approach of the Second Sun
8.3%inclusion3 decks36 decks
5%synergy
Breach the Multiverse
8.3%inclusion3 decks36 decks
6%synergy
Stock Up
6.7%inclusion2 decks30 decks
5%synergy
Ponder
5.6%inclusion2 decks36 decks
-4%synergy
Lively Dirge
5.6%inclusion2 decks36 decks
4%synergy
Open the Vaults
5.6%inclusion2 decks36 decks
4%synergy
Cut Your Losses
5.6%inclusion2 decks36 decks
5%synergy
Idyllic Tutor
5.6%inclusion2 decks36 decks
1%synergy
Incarnation Technique
5.6%inclusion2 decks36 decks
5%synergy
Identity Crisis
5.6%inclusion2 decks36 decks
6%synergy
Haunting Misery
5.6%inclusion2 decks36 decks
6%synergy
Unmarked Grave
5.6%inclusion2 decks36 decks
4%synergy
Victimize
5.6%inclusion2 decks36 decks
-3%synergy
Ghostform
5.6%inclusion2 decks36 decks
6%synergy
Brilliant Restoration
5.6%inclusion2 decks36 decks
3%synergy
Traumatize
5.6%inclusion2 decks36 decks
5%synergy
Utility Artifacts
Mesmeric Orb
28%inclusion10 decks36 decks
27%synergy
Cloud Key
17%inclusion6 decks36 decks
13%synergy
Lightning Greaves
11%inclusion4 decks36 decks
-11%synergy
Whip of Erebos
8.3%inclusion3 decks36 decks
6%synergy
Cellar Door
5.6%inclusion2 decks36 decks
6%synergy
Book of Rass
5.6%inclusion2 decks36 decks
6%synergy
Archaeomancer's Map
5.6%inclusion2 decks36 decks
1%synergy
The Book of Exalted Deeds
5.6%inclusion2 decks36 decks
5%synergy
Palantír of Orthanc
5.6%inclusion2 decks36 decks
4%synergy
Rishadan Pawnshop
5.6%inclusion2 decks36 decks
5%synergy
The Book of Vile Darkness
5.6%inclusion2 decks36 decks
5%synergy
Perpetual Timepiece
5.6%inclusion2 decks36 decks
5%synergy
Crucible of Worlds
5.6%inclusion2 decks36 decks
5%synergy
Orazca Puzzle-Door
5.6%inclusion2 decks36 decks
6%synergy
Altar of the Brood
5.6%inclusion2 decks36 decks
4%synergy
Enchantments
Mirrormade
44%inclusion16 decks36 decks
35%synergy
Starfield of Nyx
44%inclusion16 decks36 decks
40%synergy
Cacophony Unleashed
42%inclusion15 decks36 decks
40%synergy
Secret Arcade // Dusty Parlor
42%inclusion15 decks36 decks
36%synergy
Dance of the Dead
39%inclusion14 decks36 decks
37%synergy
Seal of Cleansing
39%inclusion14 decks36 decks
37%synergy
Cemetery Tampering
39%inclusion14 decks36 decks
38%synergy
Black Market Connections
36%inclusion13 decks36 decks
22%synergy
Amphibian Downpour
33%inclusion12 decks36 decks
29%synergy
Blind Obedience
33%inclusion12 decks36 decks
21%synergy
Sphere of Safety
33%inclusion12 decks36 decks
24%synergy
Teval's Judgment
31%inclusion8 decks26 decks
30%synergy
Polluted Cistern // Dim Oubliette
31%inclusion11 decks36 decks
30%synergy
Sheltered by Ghosts
31%inclusion11 decks36 decks
28%synergy
Estrid's Invocation
31%inclusion11 decks36 decks
26%synergy
Hallowed Haunting
31%inclusion11 decks36 decks
28%synergy
Darksteel Mutation
28%inclusion10 decks36 decks
21%synergy
The Meathook Massacre
28%inclusion10 decks36 decks
24%synergy
Monologue Tax
28%inclusion10 decks36 decks
22%synergy
Out of the Tombs
28%inclusion10 decks36 decks
27%synergy
Greater Auramancy
28%inclusion10 decks36 decks
23%synergy
Stillness in Motion
27%inclusion7 decks26 decks
27%synergy
Sigil of the Empty Throne
25%inclusion9 decks36 decks
19%synergy
Mirror Room // Fractured Realm
25%inclusion9 decks36 decks
23%synergy
Copy Enchantment
22%inclusion8 decks36 decks
18%synergy
Imprisoned in the Moon
22%inclusion8 decks36 decks
16%synergy
Secrets of the Dead
22%inclusion8 decks36 decks
22%synergy
Shark Typhoon
19%inclusion7 decks36 decks
14%synergy
Aura of Silence
19%inclusion7 decks36 decks
16%synergy
Leyline of Anticipation
17%inclusion6 decks36 decks
12%synergy
Central Elevator // Promising Stairs
17%inclusion6 decks36 decks
16%synergy
The Tale of Tamiyo
17%inclusion6 decks36 decks
16%synergy
Nowhere to Run
17%inclusion6 decks36 decks
15%synergy
Touch the Spirit Realm
17%inclusion6 decks36 decks
14%synergy
Trouble in Pairs
17%inclusion6 decks36 decks
11%synergy
Defiled Crypt // Cadaver Lab
17%inclusion6 decks36 decks
16%synergy
Court of Ardenvale
14%inclusion5 decks36 decks
13%synergy
Land Tax
14%inclusion5 decks36 decks
8%synergy
Seal of Removal
14%inclusion5 decks36 decks
13%synergy
Static Prison
14%inclusion5 decks36 decks
13%synergy
Restricted Office // Lecture Hall
14%inclusion5 decks36 decks
12%synergy
Authority of the Consuls
11%inclusion4 decks36 decks
0%synergy
Solitary Confinement
11%inclusion4 decks36 decks
9%synergy
Cramped Vents // Access Maze
11%inclusion4 decks36 decks
8%synergy
Funeral Room // Awakening Hall
11%inclusion4 decks36 decks
10%synergy
Court of Vantress
11%inclusion4 decks36 decks
9%synergy
Eaten by Piranhas
11%inclusion4 decks36 decks
10%synergy
Court of Cunning
11%inclusion4 decks36 decks
10%synergy
Underwater Tunnel // Slimy Aquarium
11%inclusion4 decks36 decks
11%synergy
All That Glitters
11%inclusion4 decks36 decks
2%synergy
Battles
Invasion of Theros
8.3%inclusion3 decks36 decks
6%synergy
Planeswalkers
Jace, Wielder of Mysteries
8.3%inclusion3 decks36 decks
6%synergy
Jace, the Perfected Mind
5.6%inclusion2 decks36 decks
5%synergy
Teferi, Time Raveler
5.6%inclusion2 decks36 decks
-3%synergy
Utility Lands
Otawara, Soaring City
47%inclusion17 decks36 decks
28%synergy
Bojuka Bog
44%inclusion16 decks36 decks
17%synergy
Takenuma, Abandoned Mire
36%inclusion13 decks36 decks
30%synergy
Reliquary Tower
22%inclusion8 decks36 decks
-11%synergy
Adagia, Windswept Bastion
20%inclusion3 decks15 decks
17%synergy
Urborg, Tomb of Yawgmoth
19%inclusion7 decks36 decks
6%synergy
Cephalid Coliseum
17%inclusion6 decks36 decks
13%synergy
Urza's Saga
11%inclusion4 decks36 decks
-1%synergy
Halimar Depths
8.3%inclusion3 decks36 decks
3%synergy
Maze of Ith
8.3%inclusion3 decks36 decks
5%synergy
Ghost Quarter
8.3%inclusion3 decks36 decks
7%synergy
Drownyard Temple
5.6%inclusion2 decks36 decks
5%synergy
Phyrexian Tower
5.6%inclusion2 decks36 decks
2%synergy
Homeward Path
5.6%inclusion2 decks36 decks
5%synergy
Mana Artifacts
Sol Ring
72%inclusion26 decks36 decks
-18%synergy
Arcane Signet
69%inclusion25 decks36 decks
-18%synergy
Talisman of Dominance
50%inclusion18 decks36 decks
1%synergy
Talisman of Hierarchy
44%inclusion16 decks36 decks
1%synergy
Talisman of Progress
42%inclusion15 decks36 decks
-1%synergy
Fellwar Stone
28%inclusion10 decks36 decks
-6%synergy
Azorius Signet
22%inclusion8 decks36 decks
-11%synergy
Orzhov Signet
22%inclusion8 decks36 decks
-13%synergy
Dimir Signet
19%inclusion7 decks36 decks
-13%synergy
Lotus Petal
5.6%inclusion2 decks36 decks
-5%synergy
Thran Dynamo
5.6%inclusion2 decks36 decks
2%synergy
Lands
Command Tower
97%inclusion35 decks36 decks
5%synergy
Plains
97%inclusion35 decks36 decks
6%synergy
Island
94%inclusion34 decks36 decks
2%synergy
Swamp
89%inclusion32 decks36 decks
-2%synergy
Hallowed Fountain
86%inclusion31 decks36 decks
37%synergy
Flooded Strand
86%inclusion31 decks36 decks
48%synergy
Polluted Delta
86%inclusion31 decks36 decks
49%synergy
Marsh Flats
83%inclusion30 decks36 decks
47%synergy
Watery Grave
83%inclusion30 decks36 decks
34%synergy
Godless Shrine
81%inclusion29 decks36 decks
31%synergy
Shadowy Backstreet
72%inclusion26 decks36 decks
60%synergy
Meticulous Archive
69%inclusion25 decks36 decks
56%synergy
Undercity Sewers
69%inclusion25 decks36 decks
55%synergy
Raffine's Tower
69%inclusion25 decks36 decks
28%synergy
Morphic Pool
67%inclusion24 decks36 decks
32%synergy
Sea of Clouds
64%inclusion23 decks36 decks
28%synergy
Vault of Champions
61%inclusion22 decks36 decks
28%synergy
Exotic Orchard
47%inclusion17 decks36 decks
-11%synergy
Adarkar Wastes
47%inclusion17 decks36 decks
17%synergy
Caves of Koilos
44%inclusion16 decks36 decks
9%synergy
Underground River
42%inclusion15 decks36 decks
9%synergy
Drowned Catacomb
39%inclusion14 decks36 decks
4%synergy
Shipwreck Marsh
36%inclusion13 decks36 decks
15%synergy
Glacial Fortress
36%inclusion13 decks36 decks
-3%synergy
Isolated Chapel
33%inclusion12 decks36 decks
-5%synergy
Tundra
33%inclusion12 decks36 decks
17%synergy
Scrubland
33%inclusion12 decks36 decks
17%synergy
Gloomlake Verge
31%inclusion11 decks36 decks
20%synergy
Valgavoth's Lair
31%inclusion11 decks36 decks
28%synergy
Arcane Sanctum
31%inclusion11 decks36 decks
-24%synergy
Deserted Beach
31%inclusion11 decks36 decks
10%synergy
Underground Sea
31%inclusion11 decks36 decks
15%synergy
Bloodstained Mire
28%inclusion10 decks36 decks
17%synergy
Misty Rainforest
28%inclusion10 decks36 decks
16%synergy
Floodfarm Verge
28%inclusion10 decks36 decks
17%synergy
Bleachbone Verge
27%inclusion8 decks30 decks
18%synergy
Verdant Catacombs
25%inclusion9 decks36 decks
15%synergy
Windswept Heath
22%inclusion8 decks36 decks
12%synergy
Arid Mesa
22%inclusion8 decks36 decks
12%synergy
Shattered Sanctum
22%inclusion8 decks36 decks
6%synergy
Scalding Tarn
22%inclusion8 decks36 decks
11%synergy
Fell the Profane
19%inclusion7 decks36 decks
11%synergy
Sunken Hollow
19%inclusion7 decks36 decks
-20%synergy
Sink into Stupor
17%inclusion6 decks36 decks
4%synergy
Dimir Aqueduct
17%inclusion6 decks36 decks
2%synergy
Witch Enchanter
17%inclusion6 decks36 decks
10%synergy
Azorius Chancery
17%inclusion6 decks36 decks
2%synergy
City of Brass
17%inclusion6 decks36 decks
1%synergy
Boggart Trawler
14%inclusion5 decks36 decks
11%synergy
Mana Confluence
14%inclusion5 decks36 decks
0%synergy
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