Tekuthal, Inquiry Dominus (Commander) - Upgraded Proliferate

Tekuthal, Inquiry Dominus
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Background image for How To Play Horrors Differently In Commander
Sikora
Oct 30, 2025
Sikora
How To Play Horrors Differently In Commander
It's the spookiest time of the year... are you thinking of brewing a deck full of Horrors? We've got some ideas for how to keep it unique!
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Loch Mare
33%inclusion2 decks6 decks
32%synergy
Glen Elendra Guardian
33%inclusion2 decks6 decks
32%synergy
Flitterwing Nuisance
17%inclusion1 decks6 decks
16%synergy
High Synergy Cards
Karn's Bastion
95%inclusion20 decks21 decks
90%synergy
Experimental Augury
90%inclusion19 decks21 decks
85%synergy
Tezzeret's Gambit
90%inclusion19 decks21 decks
85%synergy
Flux Channeler
90%inclusion19 decks21 decks
85%synergy
Serum Snare
86%inclusion18 decks21 decks
82%synergy
Inexorable Tide
86%inclusion18 decks21 decks
82%synergy
Contentious Plan
86%inclusion18 decks21 decks
81%synergy
Reject Imperfection
81%inclusion17 decks21 decks
78%synergy
Dreamtide Whale
81%inclusion17 decks21 decks
77%synergy
Thrummingbird
81%inclusion17 decks21 decks
76%synergy
Top Cards
Sapphire Medallion
76%inclusion16 decks21 decks
18%synergy
Prologue to Phyresis
71%inclusion15 decks21 decks
69%synergy
Ripples of Potential
71%inclusion15 decks21 decks
69%synergy
Contagion Engine
71%inclusion15 decks21 decks
70%synergy
Radstorm
67%inclusion14 decks21 decks
64%synergy
Viral Drake
62%inclusion13 decks21 decks
60%synergy
Deepglow Skate
62%inclusion13 decks21 decks
60%synergy
Lulu, Stern Guardian
58%inclusion11 decks19 decks
56%synergy
Insight Engine
53%inclusion9 decks17 decks
48%synergy
Contagion Clasp
52%inclusion11 decks21 decks
51%synergy
Game Changers
Narset, Parter of Veils
24%inclusion5 decks21 decks
13%synergy
Mystical Tutor
24%inclusion5 decks21 decks
1%synergy
Rhystic Study
19%inclusion4 decks21 decks
-14%synergy
Cyclonic Rift
19%inclusion4 decks21 decks
-15%synergy
Creatures
Blighted Agent
52%inclusion11 decks21 decks
50%synergy
Myojin of Cryptic Dreams
48%inclusion10 decks21 decks
46%synergy
Ingenious Prodigy
48%inclusion10 decks21 decks
46%synergy
Surge Conductor
47%inclusion8 decks17 decks
45%synergy
Guildpact Informant
43%inclusion9 decks21 decks
41%synergy
Plague Myr
38%inclusion8 decks21 decks
36%synergy
Malcolm, Alluring Scoundrel
38%inclusion8 decks21 decks
33%synergy
Chasm Skulker
38%inclusion8 decks21 decks
25%synergy
Myr Convert
33%inclusion7 decks21 decks
32%synergy
Goldberry, River-Daughter
33%inclusion7 decks21 decks
33%synergy
Core Prowler
29%inclusion6 decks21 decks
28%synergy
Vexing Radgull
29%inclusion6 decks21 decks
28%synergy
Coretapper
29%inclusion6 decks21 decks
28%synergy
Benthic Biomancer
29%inclusion6 decks21 decks
28%synergy
Thing in the Ice
29%inclusion6 decks21 decks
27%synergy
Phyrexian Metamorph
24%inclusion5 decks21 decks
5%synergy
Hydroelectric Specimen
24%inclusion5 decks21 decks
10%synergy
Chrome Host Seedshark
24%inclusion5 decks21 decks
19%synergy
Ichorclaw Myr
24%inclusion5 decks21 decks
23%synergy
Pollywog Prodigy
24%inclusion5 decks21 decks
20%synergy
Jin-Gitaxias
24%inclusion5 decks21 decks
21%synergy
Necropede
24%inclusion5 decks21 decks
23%synergy
Mindless Automaton
24%inclusion5 decks21 decks
24%synergy
Walking Ballista
19%inclusion4 decks21 decks
14%synergy
Spark Double
19%inclusion4 decks21 decks
6%synergy
Faerie Mastermind
19%inclusion4 decks21 decks
5%synergy
Trinket Mage
19%inclusion4 decks21 decks
9%synergy
Silent Arbiter
14%inclusion3 decks21 decks
11%synergy
Defiler of Dreams
14%inclusion3 decks21 decks
6%synergy
Lighthouse Chronologist
14%inclusion3 decks21 decks
13%synergy
Ambling Stormshell
11%inclusion2 decks19 decks
10%synergy
O'aka, Traveling Merchant
11%inclusion2 decks19 decks
10%synergy
Trophy Mage
10%inclusion2 decks21 decks
3%synergy
Spellseeker
10%inclusion2 decks21 decks
1%synergy
Sai, Master Thopterist
10%inclusion2 decks21 decks
-2%synergy
Summon: Shiva
10%inclusion2 decks21 decks
8%synergy
Jace, Vryn's Prodigy
10%inclusion2 decks21 decks
8%synergy
Mercurial Spelldancer
10%inclusion2 decks21 decks
7%synergy
Crystalline Crawler
10%inclusion2 decks21 decks
9%synergy
Simic Manipulator
10%inclusion2 decks21 decks
9%synergy
Danny Pink
10%inclusion2 decks21 decks
9%synergy
Etherium Sculptor
10%inclusion2 decks21 decks
-8%synergy
Steel Overseer
10%inclusion2 decks21 decks
5%synergy
Vedalken Engineer
10%inclusion2 decks21 decks
8%synergy
Twenty-Toed Toad
10%inclusion2 decks21 decks
4%synergy
Clever Impersonator
10%inclusion2 decks21 decks
4%synergy
Filigree Sages
10%inclusion2 decks21 decks
9%synergy
Emry, Lurker of the Loch
10%inclusion2 decks21 decks
-2%synergy
Ledger Shredder
10%inclusion2 decks21 decks
3%synergy
Jin-Gitaxias, Progress Tyrant
10%inclusion2 decks21 decks
2%synergy
Instants
Counterspell
52%inclusion11 decks21 decks
-14%synergy
Steady Progress
52%inclusion11 decks21 decks
50%synergy
Pongify
43%inclusion9 decks21 decks
3%synergy
Fuel for the Cause
43%inclusion9 decks21 decks
41%synergy
Sink into Stupor
38%inclusion8 decks21 decks
16%synergy
Rapid Hybridization
33%inclusion7 decks21 decks
-1%synergy
Muddle the Mixture
29%inclusion6 decks21 decks
13%synergy
An Offer You Can't Refuse
29%inclusion6 decks21 decks
-9%synergy
Aetherize
29%inclusion6 decks21 decks
-1%synergy
Arcane Denial
29%inclusion6 decks21 decks
-8%synergy
Negate
24%inclusion5 decks21 decks
-14%synergy
Frantic Search
19%inclusion4 decks21 decks
-11%synergy
Reality Shift
19%inclusion4 decks21 decks
-8%synergy
Resculpt
19%inclusion4 decks21 decks
1%synergy
Swan Song
19%inclusion4 decks21 decks
-8%synergy
Engulf the Shore
19%inclusion4 decks21 decks
11%synergy
High Tide
19%inclusion4 decks21 decks
-25%synergy
Evacuation
19%inclusion4 decks21 decks
11%synergy
Brainstorm
14%inclusion3 decks21 decks
-27%synergy
Mana Drain
14%inclusion3 decks21 decks
-13%synergy
Slip Out the Back
14%inclusion3 decks21 decks
7%synergy
Corrupted Resolve
14%inclusion3 decks21 decks
14%synergy
Jwari Disruption
14%inclusion3 decks21 decks
9%synergy
Pull from Tomorrow
14%inclusion3 decks21 decks
5%synergy
Aspirant's Ascent
14%inclusion3 decks21 decks
14%synergy
Whir of Invention
10%inclusion2 decks21 decks
-3%synergy
Cyber Conversion
10%inclusion2 decks21 decks
6%synergy
Bring the Ending
10%inclusion2 decks21 decks
9%synergy
Blue Sun's Zenith
10%inclusion2 decks21 decks
-2%synergy
Opt
10%inclusion2 decks21 decks
-16%synergy
Disallow
10%inclusion2 decks21 decks
3%synergy
Cryptic Command
10%inclusion2 decks21 decks
-2%synergy
Flow of Knowledge
10%inclusion2 decks21 decks
-6%synergy
Narset's Reversal
10%inclusion2 decks21 decks
-3%synergy
Long River's Pull
10%inclusion2 decks21 decks
5%synergy
Spider-Sense
7.7%inclusion1 decks13 decks
5%synergy
Sorceries
Vivisurgeon's Insight
52%inclusion11 decks21 decks
51%synergy
Fabricate
33%inclusion7 decks21 decks
12%synergy
Sea Gate Restoration
19%inclusion4 decks21 decks
4%synergy
Distorted Curiosity
19%inclusion4 decks21 decks
18%synergy
Merchant Scroll
19%inclusion4 decks21 decks
10%synergy
Solve the Equation
19%inclusion4 decks21 decks
7%synergy
Finale of Revelation
14%inclusion3 decks21 decks
7%synergy
Ponder
10%inclusion2 decks21 decks
-20%synergy
Windfall
10%inclusion2 decks21 decks
-13%synergy
Gitaxian Probe
10%inclusion2 decks21 decks
-2%synergy
Season of Weaving
10%inclusion2 decks21 decks
4%synergy
Preordain
10%inclusion2 decks21 decks
-14%synergy
Spectral Deluge
10%inclusion2 decks21 decks
-1%synergy
Utility Artifacts
Magistrate's Scepter
52%inclusion11 decks21 decks
51%synergy
Darksteel Reactor
43%inclusion9 decks21 decks
42%synergy
Lux Cannon
43%inclusion9 decks21 decks
42%synergy
Sword of Truth and Justice
33%inclusion7 decks21 decks
32%synergy
Transmogrifying Wand
33%inclusion7 decks21 decks
33%synergy
Throne of Geth
29%inclusion6 decks21 decks
28%synergy
Recon Craft Theta
29%inclusion6 decks21 decks
28%synergy
Lost Jitte
29%inclusion6 decks21 decks
28%synergy
Swiftfoot Boots
29%inclusion6 decks21 decks
0%synergy
Ichormoon Gauntlet
24%inclusion5 decks21 decks
22%synergy
Lightning Greaves
24%inclusion5 decks21 decks
-2%synergy
Peter Parker's Camera
23%inclusion3 decks13 decks
22%synergy
The Millennium Calendar
19%inclusion4 decks21 decks
17%synergy
Prosthetic Injector
19%inclusion4 decks21 decks
19%synergy
The Magic Mirror
19%inclusion4 decks21 decks
13%synergy
Energy Chamber
19%inclusion4 decks21 decks
19%synergy
Moxite Refinery
18%inclusion3 decks17 decks
17%synergy
Uthros Research Craft
18%inclusion3 decks17 decks
11%synergy
Voltaic Key
14%inclusion3 decks21 decks
9%synergy
Gavel of the Righteous
14%inclusion3 decks21 decks
14%synergy
Manifold Key
14%inclusion3 decks21 decks
7%synergy
Moonsilver Key
14%inclusion3 decks21 decks
11%synergy
Surge Node
14%inclusion3 decks21 decks
14%synergy
Eternity Vessel
14%inclusion3 decks21 decks
14%synergy
The Ozolith
10%inclusion2 decks21 decks
9%synergy
Umezawa's Jitte
10%inclusion2 decks21 decks
9%synergy
Oracle's Vault
10%inclusion2 decks21 decks
9%synergy
Titan Forge
10%inclusion2 decks21 decks
9%synergy
Mindsplice Apparatus
10%inclusion2 decks21 decks
5%synergy
Golem Foundry
10%inclusion2 decks21 decks
9%synergy
Tome of Legends
10%inclusion2 decks21 decks
9%synergy
Lux Artillery
10%inclusion2 decks21 decks
9%synergy
Grafted Exoskeleton
10%inclusion2 decks21 decks
9%synergy
Clearwater Goblet
10%inclusion2 decks21 decks
9%synergy
The Endstone
5.9%inclusion1 decks17 decks
3%synergy
Extinguisher Battleship
5.9%inclusion1 decks17 decks
5%synergy
Synthesizer Labship
5.9%inclusion1 decks17 decks
5%synergy
Enchantments
Mesmerizing Dose
48%inclusion10 decks21 decks
46%synergy
As Foretold
48%inclusion10 decks21 decks
44%synergy
Propaganda
38%inclusion8 decks21 decks
8%synergy
Ominous Seas
33%inclusion7 decks21 decks
22%synergy
Wizard Class
29%inclusion6 decks21 decks
12%synergy
Lost in the Maze
24%inclusion5 decks21 decks
22%synergy
Archmage Ascension
24%inclusion5 decks21 decks
22%synergy
Imprisoned in the Moon
19%inclusion4 decks21 decks
7%synergy
Mystic Remora
14%inclusion3 decks21 decks
-13%synergy
Proft's Eidetic Memory
14%inclusion3 decks21 decks
6%synergy
Corrupted Conscience
14%inclusion3 decks21 decks
12%synergy
Teferi's Ageless Insight
10%inclusion2 decks21 decks
-8%synergy
Planeswalkers
Tezzeret, Artifice Master
29%inclusion6 decks21 decks
25%synergy
Tezzeret the Seeker
24%inclusion5 decks21 decks
15%synergy
Teferi, Master of Time
24%inclusion5 decks21 decks
19%synergy
Teferi, Temporal Pilgrim
19%inclusion4 decks21 decks
14%synergy
Tamiyo, the Moon Sage
19%inclusion4 decks21 decks
17%synergy
Mu Yanling
14%inclusion3 decks21 decks
14%synergy
Mordenkainen
14%inclusion3 decks21 decks
11%synergy
Jace, the Mind Sculptor
14%inclusion3 decks21 decks
11%synergy
Jace, Unraveler of Secrets
14%inclusion3 decks21 decks
12%synergy
Kasmina, Enigmatic Mentor
14%inclusion3 decks21 decks
13%synergy
Ugin, the Spirit Dragon
14%inclusion3 decks21 decks
13%synergy
Tezzeret, Cruel Captain
12%inclusion2 decks17 decks
6%synergy
Teferi, Temporal Archmage
10%inclusion2 decks21 decks
8%synergy
Ugin, the Ineffable
10%inclusion2 decks21 decks
8%synergy
Jace, Wielder of Mysteries
10%inclusion2 decks21 decks
-5%synergy
Tezzeret, Betrayer of Flesh
10%inclusion2 decks21 decks
7%synergy
Vronos, Masked Inquisitor
10%inclusion2 decks21 decks
9%synergy
Jace Beleren
10%inclusion2 decks21 decks
6%synergy
Utility Lands
Mystic Sanctuary
67%inclusion14 decks21 decks
16%synergy
Nesting Grounds
67%inclusion14 decks21 decks
64%synergy
Mage-Ring Network
57%inclusion12 decks21 decks
56%synergy
Uthros, Titanic Godcore
41%inclusion7 decks17 decks
31%synergy
Inkmoth Nexus
38%inclusion8 decks21 decks
37%synergy
Reliquary Tower
38%inclusion8 decks21 decks
-18%synergy
Nykthos, Shrine to Nyx
33%inclusion7 decks21 decks
17%synergy
Saprazzan Skerry
33%inclusion7 decks21 decks
30%synergy
Rogue's Passage
33%inclusion7 decks21 decks
18%synergy
Seat of the Synod
29%inclusion6 decks21 decks
10%synergy
Academy Ruins
29%inclusion6 decks21 decks
10%synergy
Otawara, Soaring City
29%inclusion6 decks21 decks
3%synergy
Tolaria West
24%inclusion5 decks21 decks
18%synergy
War Room
24%inclusion5 decks21 decks
8%synergy
Buried Ruin
19%inclusion4 decks21 decks
7%synergy
Blast Zone
19%inclusion4 decks21 decks
17%synergy
Urza's Saga
19%inclusion4 decks21 decks
2%synergy
Saprazzan Cove
19%inclusion4 decks21 decks
19%synergy
Sand Silos
14%inclusion3 decks21 decks
14%synergy
Diamond City
14%inclusion3 decks21 decks
14%synergy
Inventors' Fair
14%inclusion3 decks21 decks
1%synergy
Archway of Innovation
14%inclusion3 decks21 decks
3%synergy
Drannith Ruins
14%inclusion3 decks21 decks
14%synergy
Mistrise Village
11%inclusion2 decks19 decks
1%synergy
Tyrite Sanctum
10%inclusion2 decks21 decks
8%synergy
Vesuva
10%inclusion2 decks21 decks
8%synergy
Mystifying Maze
10%inclusion2 decks21 decks
9%synergy
Lonely Sandbar
10%inclusion2 decks21 decks
-4%synergy
Darksteel Citadel
10%inclusion2 decks21 decks
-2%synergy
Deserted Temple
10%inclusion2 decks21 decks
9%synergy
Terrain Generator
10%inclusion2 decks21 decks
2%synergy
Thespian's Stage
10%inclusion2 decks21 decks
7%synergy
Temple of the False God
10%inclusion2 decks21 decks
-1%synergy
Access Tunnel
10%inclusion2 decks21 decks
8%synergy
Agna Qel'a
9.1%inclusion1 decks11 decks
1%synergy
Mana Artifacts
Everflowing Chalice
95%inclusion20 decks21 decks
79%synergy
Astral Cornucopia
90%inclusion19 decks21 decks
87%synergy
Staff of Compleation
71%inclusion15 decks21 decks
69%synergy
Sol Ring
71%inclusion15 decks21 decks
-14%synergy
Glistening Sphere
57%inclusion12 decks21 decks
56%synergy
Replicating Ring
48%inclusion10 decks21 decks
45%synergy
Empowered Autogenerator
43%inclusion9 decks21 decks
42%synergy
Arcane Signet
38%inclusion8 decks21 decks
-27%synergy
Midnight Clock
38%inclusion8 decks21 decks
18%synergy
Aetheric Amplifier
33%inclusion7 decks21 decks
33%synergy
The Aetherspark
33%inclusion7 decks21 decks
33%synergy
Thought Vessel
33%inclusion7 decks21 decks
-18%synergy
Strixhaven Stadium
19%inclusion4 decks21 decks
18%synergy
Coalition Relic
14%inclusion3 decks21 decks
14%synergy
Pyramid of the Pantheon
14%inclusion3 decks21 decks
14%synergy
Caged Sun
10%inclusion2 decks21 decks
-2%synergy
Sky Diamond
10%inclusion2 decks21 decks
-13%synergy
Throne of Eldraine
10%inclusion2 decks21 decks
0%synergy
Pentad Prism
10%inclusion2 decks21 decks
9%synergy
Fellwar Stone
10%inclusion2 decks21 decks
-10%synergy
Liquimetal Torque
10%inclusion2 decks21 decks
3%synergy
Nyx Lotus
10%inclusion2 decks21 decks
6%synergy
Extraplanar Lens
10%inclusion2 decks21 decks
2%synergy
Misleading Signpost
10%inclusion2 decks21 decks
6%synergy
Bender's Waterskin
6.7%inclusion1 decks15 decks
-3%synergy
The Eternity Elevator
5.9%inclusion1 decks17 decks
4%synergy
Solar Array
5.9%inclusion1 decks17 decks
6%synergy
Lands
Island
90%inclusion19 decks21 decks
-3%synergy
Myriad Landscape
38%inclusion8 decks21 decks
12%synergy
Sink into Stupor
38%inclusion8 decks21 decks
16%synergy
The Mycosynth Gardens
33%inclusion7 decks21 decks
28%synergy
Hydroelectric Specimen
24%inclusion5 decks21 decks
10%synergy
Sea Gate Restoration
19%inclusion4 decks21 decks
4%synergy
Mirrex
19%inclusion4 decks21 decks
18%synergy
Jwari Disruption
14%inclusion3 decks21 decks
9%synergy
Command Tower
10%inclusion2 decks21 decks
5%synergy
Urza's Cave
10%inclusion2 decks21 decks
6%synergy
Snow-Covered Island
10%inclusion2 decks21 decks
2%synergy
Talon Gates of Madara
10%inclusion2 decks21 decks
6%synergy
Demolition Field
10%inclusion2 decks21 decks
4%synergy
Tendo Ice Bridge
10%inclusion2 decks21 decks
9%synergy
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