K'rrik, Son of Yawgmoth (Commander) - Rat Colony

Alternate Names:

Emet-Selch, AscianEmet-Selch, Ascian, Post, Son of RichPost, Son of Rich

K'rrik, Son of Yawgmoth
Rank #50
35decks
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Background image for The Best Horror Combos in Commander
Ethan Coover
Oct 20, 2025
Ethan Coover
The Best Horror Combos in Commander
There are plenty of Horror creatures in Magic, but which are the best at comboing? In honor of Halloween, Ethan Coover lists the best 10.
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Rat Colony
100%inclusion35 decks35 decks
95%synergy
Thrumming Stone
77%inclusion27 decks35 decks
74%synergy
Echoing Return
66%inclusion23 decks35 decks
63%synergy
Bontu's Monument
89%inclusion31 decks35 decks
61%synergy
Marrow-Gnawer
57%inclusion20 decks35 decks
54%synergy
Piper of the Swarm
46%inclusion16 decks35 decks
39%synergy
Whip of Erebos
49%inclusion17 decks35 decks
38%synergy
Herald's Horn
43%inclusion15 decks35 decks
37%synergy
Karumonix, the Rat King
40%inclusion14 decks35 decks
36%synergy
Ogre Slumlord
46%inclusion16 decks35 decks
36%synergy
Top Cards
Jet Medallion
89%inclusion31 decks35 decks
29%synergy
Dark Ritual
69%inclusion24 decks35 decks
2%synergy
Gray Merchant of Asphodel
63%inclusion22 decks35 decks
11%synergy
Crypt Ghast
49%inclusion17 decks35 decks
0%synergy
Aetherflux Reservoir
46%inclusion16 decks35 decks
36%synergy
Ayara, First of Locthwain
43%inclusion15 decks35 decks
17%synergy
Species Specialist
37%inclusion13 decks35 decks
34%synergy
Feed the Swarm
37%inclusion13 decks35 decks
-14%synergy
Sign in Blood
37%inclusion13 decks35 decks
1%synergy
Grim Tutor
37%inclusion13 decks35 decks
25%synergy
Game Changers
Bolas's Citadel
54%inclusion19 decks35 decks
25%synergy
Vampiric Tutor
51%inclusion18 decks35 decks
30%synergy
Demonic Tutor
49%inclusion17 decks35 decks
21%synergy
Necropotence
31%inclusion11 decks35 decks
16%synergy
Imperial Seal
26%inclusion9 decks35 decks
19%synergy
Ancient Tomb
26%inclusion9 decks35 decks
14%synergy
Chrome Mox
17%inclusion6 decks35 decks
11%synergy
Opposition Agent
14%inclusion5 decks35 decks
4%synergy
Mana Vault
14%inclusion5 decks35 decks
7%synergy
Orcish Bowmasters
11%inclusion4 decks35 decks
-2%synergy
Creatures
Pack Rat
34%inclusion12 decks35 decks
28%synergy
Vilis, Broker of Blood
34%inclusion12 decks35 decks
20%synergy
Sheoldred, the Apocalypse
29%inclusion10 decks35 decks
14%synergy
Lord Skitter, Sewer King
29%inclusion10 decks35 decks
21%synergy
Ashcoat of the Shadow Swarm
23%inclusion8 decks35 decks
20%synergy
Ratcatcher
23%inclusion8 decks35 decks
19%synergy
Valley Rotcaller
17%inclusion4 decks23 decks
15%synergy
Crashing Drawbridge
17%inclusion6 decks35 decks
15%synergy
Blood Celebrant
17%inclusion6 decks35 decks
13%synergy
Vito, Thorn of the Dusk Rose
17%inclusion6 decks35 decks
6%synergy
Pontiff of Blight
17%inclusion6 decks35 decks
13%synergy
Typhoid Rats
14%inclusion5 decks35 decks
10%synergy
Crypt Rats
11%inclusion4 decks35 decks
7%synergy
Blood Artist
11%inclusion4 decks35 decks
-20%synergy
Dimir House Guard
11%inclusion4 decks35 decks
8%synergy
Ink-Eyes, Servant of Oni
11%inclusion4 decks35 decks
8%synergy
Skirge Familiar
11%inclusion4 decks35 decks
6%synergy
Nashi, Moon Sage's Scion
11%inclusion4 decks35 decks
7%synergy
Blood Pet
11%inclusion4 decks35 decks
3%synergy
Razaketh, the Foulblooded
8.6%inclusion3 decks35 decks
3%synergy
Asmodeus the Archfiend
8.6%inclusion3 decks35 decks
4%synergy
Morbid Opportunist
8.6%inclusion3 decks35 decks
-13%synergy
Mukotai Ambusher
8.6%inclusion3 decks35 decks
8%synergy
Defiler of Flesh
8.6%inclusion3 decks35 decks
4%synergy
Tangled Colony
8.6%inclusion3 decks35 decks
5%synergy
Lord Skitter's Butcher
8.6%inclusion3 decks35 decks
5%synergy
Nirkana Revenant
8.6%inclusion3 decks35 decks
-3%synergy
Zulaport Cutthroat
8.6%inclusion3 decks35 decks
-14%synergy
Swarm of Rats
8.6%inclusion3 decks35 decks
6%synergy
Disciple of Bolas
8.6%inclusion3 decks35 decks
4%synergy
Diamond Mare
8.6%inclusion3 decks35 decks
7%synergy
Chainer, Dementia Master
8.6%inclusion3 decks35 decks
3%synergy
Gnat Miser
8.6%inclusion3 decks35 decks
6%synergy
Boggart Trawler
7.7%inclusion2 decks26 decks
-1%synergy
Warren Soultrader
7.7%inclusion2 decks26 decks
-5%synergy
Valgavoth, Terror Eater
7.1%inclusion1 decks14 decks
2%synergy
Shadowheart, Dark Justiciar
5.7%inclusion2 decks35 decks
4%synergy
Hoarding Broodlord
5.7%inclusion2 decks35 decks
1%synergy
Necrotic Ooze
5.7%inclusion2 decks35 decks
1%synergy
Ornithopter of Paradise
5.7%inclusion2 decks35 decks
3%synergy
Filth
5.7%inclusion2 decks35 decks
3%synergy
Chittering Witch
5.7%inclusion2 decks35 decks
1%synergy
Voracious Vermin
5.7%inclusion2 decks35 decks
3%synergy
Sheoldred, Whispering One
5.7%inclusion2 decks35 decks
-6%synergy
Nezumi Prowler
5.7%inclusion2 decks35 decks
4%synergy
Blightbelly Rat
5.7%inclusion2 decks35 decks
2%synergy
Dauthi Voidwalker
5.7%inclusion2 decks35 decks
-10%synergy
Magus of the Mirror
5.7%inclusion2 decks35 decks
5%synergy
Viscera Seer
5.7%inclusion2 decks35 decks
-11%synergy
Instants
Village Rites
31%inclusion11 decks35 decks
7%synergy
Cabal Ritual
31%inclusion11 decks35 decks
14%synergy
Deadly Rollick
29%inclusion10 decks35 decks
5%synergy
Deadly Dispute
26%inclusion9 decks35 decks
2%synergy
Culling the Weak
26%inclusion9 decks35 decks
11%synergy
Imp's Mischief
23%inclusion8 decks35 decks
-1%synergy
Defile
14%inclusion5 decks35 decks
-24%synergy
Withering Torment
14%inclusion2 decks14 decks
-17%synergy
Fell the Profane
12%inclusion3 decks26 decks
-7%synergy
Foul-Tongue Shriek
11%inclusion4 decks35 decks
10%synergy
Malakir Rebirth
11%inclusion4 decks35 decks
-11%synergy
Corrupted Conviction
11%inclusion4 decks35 decks
-1%synergy
Infernal Grasp
8.6%inclusion3 decks35 decks
-17%synergy
Baleful Mastery
8.6%inclusion3 decks35 decks
-1%synergy
Tragic Slip
8.6%inclusion3 decks35 decks
-12%synergy
Dismember
8.6%inclusion3 decks35 decks
-2%synergy
Flare of Malice
7.7%inclusion2 decks26 decks
-5%synergy
Bile Blight
5.7%inclusion2 decks35 decks
4%synergy
Go for the Throat
5.7%inclusion2 decks35 decks
-18%synergy
Bitter Triumph
5.7%inclusion2 decks35 decks
-4%synergy
Offer Immortality
5.7%inclusion2 decks35 decks
3%synergy
Sudden Spoiling
5.7%inclusion2 decks35 decks
-4%synergy
Sorceries
Diabolic Tutor
34%inclusion12 decks35 decks
19%synergy
Patriarch's Bidding
31%inclusion11 decks35 decks
27%synergy
Diabolic Intent
29%inclusion10 decks35 decks
14%synergy
Secret Salvage
23%inclusion8 decks35 decks
22%synergy
Exsanguinate
20%inclusion7 decks35 decks
-4%synergy
Beseech the Queen
20%inclusion7 decks35 decks
14%synergy
Insatiable Avarice
18%inclusion5 decks28 decks
6%synergy
Night's Whisper
17%inclusion6 decks35 decks
-7%synergy
Toxic Deluge
17%inclusion6 decks35 decks
-20%synergy
Peer into the Abyss
14%inclusion5 decks35 decks
3%synergy
Reanimate
14%inclusion5 decks35 decks
-24%synergy
Kindred Dominance
14%inclusion5 decks35 decks
10%synergy
Profane Tutor
11%inclusion4 decks35 decks
7%synergy
Bubbling Muck
11%inclusion4 decks35 decks
-4%synergy
Beseech the Mirror
11%inclusion4 decks35 decks
5%synergy
Gruesome Fate
11%inclusion4 decks35 decks
9%synergy
Revenge of the Rats
11%inclusion1 decks9 decks
9%synergy
Read the Bones
8.6%inclusion3 decks35 decks
-10%synergy
Living Death
8.6%inclusion3 decks35 decks
-2%synergy
Final Parting
8.6%inclusion3 decks35 decks
4%synergy
Damnation
8.6%inclusion3 decks35 decks
-12%synergy
Cruel Tutor
8.6%inclusion3 decks35 decks
8%synergy
Rise of the Dark Realms
8.6%inclusion3 decks35 decks
-4%synergy
Pact of the Serpent
8.6%inclusion3 decks35 decks
7%synergy
Profane Transfusion
5.7%inclusion2 decks35 decks
4%synergy
Infernal Tutor
5.7%inclusion2 decks35 decks
5%synergy
Mastermind's Acquisition
5.7%inclusion2 decks35 decks
4%synergy
Dark Petition
5.7%inclusion2 decks35 decks
2%synergy
Buried Alive
5.7%inclusion2 decks35 decks
-6%synergy
Dimir Machinations
5.7%inclusion2 decks35 decks
5%synergy
Plague of Vermin
5.7%inclusion2 decks35 decks
3%synergy
Utility Artifacts
Demon's Horn
37%inclusion13 decks35 decks
33%synergy
Skullclamp
34%inclusion12 decks35 decks
13%synergy
Vanquisher's Banner
31%inclusion11 decks35 decks
27%synergy
Ashnod's Altar
26%inclusion9 decks35 decks
6%synergy
Lightning Greaves
26%inclusion9 decks35 decks
-8%synergy
Cloud Key
20%inclusion7 decks35 decks
18%synergy
Helm of Awakening
20%inclusion7 decks35 decks
19%synergy
Staff of the Death Magus
17%inclusion6 decks35 decks
14%synergy
Door of Destinies
14%inclusion5 decks35 decks
12%synergy
Wayfarer's Bauble
11%inclusion4 decks35 decks
-5%synergy
Wishclaw Talisman
11%inclusion4 decks35 decks
5%synergy
Urza's Incubator
11%inclusion4 decks35 decks
10%synergy
Eldrazi Monument
11%inclusion4 decks35 decks
10%synergy
Swiftfoot Boots
11%inclusion4 decks35 decks
-20%synergy
Sensei's Divining Top
8.6%inclusion3 decks35 decks
0%synergy
The One Ring
8.6%inclusion3 decks35 decks
-1%synergy
Coat of Arms
8.6%inclusion3 decks35 decks
6%synergy
Akroma's Memorial
8.6%inclusion3 decks35 decks
8%synergy
Prism Ring
5.7%inclusion2 decks35 decks
3%synergy
Icon of Ancestry
5.7%inclusion2 decks35 decks
5%synergy
Mirror Box
5.7%inclusion2 decks35 decks
5%synergy
Phyrexian Altar
5.7%inclusion2 decks35 decks
-7%synergy
Expedition Map
5.7%inclusion2 decks35 decks
-7%synergy
Semblance Anvil
5.7%inclusion2 decks35 decks
5%synergy
Locket of Yesterdays
5.7%inclusion2 decks35 decks
6%synergy
Alhammarret's Archive
5.7%inclusion2 decks35 decks
2%synergy
Basilisk Collar
5.7%inclusion2 decks35 decks
3%synergy
Enchantments
Black Market Connections
34%inclusion12 decks35 decks
11%synergy
Phyrexian Arena
23%inclusion8 decks35 decks
-17%synergy
Necrodominance
15%inclusion4 decks26 decks
12%synergy
Greed
14%inclusion5 decks35 decks
7%synergy
Exquisite Blood
14%inclusion5 decks35 decks
1%synergy
The Meathook Massacre
11%inclusion4 decks35 decks
-6%synergy
Black Market
11%inclusion4 decks35 decks
-10%synergy
Grave Pact
8.6%inclusion3 decks35 decks
-10%synergy
Font of Agonies
8.6%inclusion3 decks35 decks
4%synergy
Vampiric Link
5.7%inclusion2 decks35 decks
4%synergy
Haunted One
5.7%inclusion2 decks35 decks
3%synergy
Sanguine Bond
5.7%inclusion2 decks35 decks
-6%synergy
Animate Dead
5.7%inclusion2 decks35 decks
-12%synergy
Bastion of Remembrance
5.7%inclusion2 decks35 decks
-10%synergy
Bloodchief Ascension
5.7%inclusion2 decks35 decks
-4%synergy
Cover of Darkness
5.7%inclusion2 decks35 decks
3%synergy
Dark Prophecy
5.7%inclusion2 decks35 decks
2%synergy
Heartless Summoning
5.7%inclusion2 decks35 decks
1%synergy
Bad Moon
5.7%inclusion2 decks35 decks
2%synergy
Utility Lands
Cabal Coffers
69%inclusion24 decks35 decks
13%synergy
Urborg, Tomb of Yawgmoth
49%inclusion17 decks35 decks
11%synergy
Nykthos, Shrine to Nyx
46%inclusion16 decks35 decks
16%synergy
Cabal Stronghold
43%inclusion15 decks35 decks
7%synergy
Phyrexian Tower
34%inclusion12 decks35 decks
11%synergy
Swarmyard
34%inclusion12 decks35 decks
29%synergy
Witch's Cottage
29%inclusion10 decks35 decks
4%synergy
Bojuka Bog
26%inclusion9 decks35 decks
-21%synergy
Reliquary Tower
20%inclusion7 decks35 decks
-11%synergy
Castle Locthwain
17%inclusion6 decks35 decks
-1%synergy
Buried Ruin
14%inclusion5 decks35 decks
9%synergy
Urza's Saga
14%inclusion5 decks35 decks
6%synergy
Crystal Vein
14%inclusion5 decks35 decks
12%synergy
Takenuma, Abandoned Mire
11%inclusion4 decks35 decks
-5%synergy
Homeward Path
11%inclusion4 decks35 decks
10%synergy
Rogue's Passage
11%inclusion4 decks35 decks
-7%synergy
Mudflat Village
8.7%inclusion2 decks23 decks
6%synergy
Three Tree City
8.7%inclusion2 decks23 decks
5%synergy
Vault of Whispers
8.6%inclusion3 decks35 decks
3%synergy
Scorched Ruins
8.6%inclusion3 decks35 decks
8%synergy
Lake of the Dead
8.6%inclusion3 decks35 decks
3%synergy
Spymaster's Vault
7.7%inclusion2 decks26 decks
-2%synergy
Shizo, Death's Storehouse
5.7%inclusion2 decks35 decks
-4%synergy
Arch of Orazca
5.7%inclusion2 decks35 decks
5%synergy
Crypt of Agadeem
5.7%inclusion2 decks35 decks
-5%synergy
Mutavault
5.7%inclusion2 decks35 decks
5%synergy
War Room
5.7%inclusion2 decks35 decks
-11%synergy
Emergence Zone
5.7%inclusion2 decks35 decks
2%synergy
Geier Reach Sanitarium
5.7%inclusion2 decks35 decks
-6%synergy
Command Beacon
5.7%inclusion2 decks35 decks
-2%synergy
Inventors' Fair
5.7%inclusion2 decks35 decks
3%synergy
Thespian's Stage
5.7%inclusion2 decks35 decks
0%synergy
Temple of the False God
5.7%inclusion2 decks35 decks
-2%synergy
Mana Artifacts
Sol Ring
89%inclusion31 decks35 decks
2%synergy
Arcane Signet
71%inclusion25 decks35 decks
9%synergy
Thought Vessel
26%inclusion9 decks35 decks
-2%synergy
Charcoal Diamond
20%inclusion7 decks35 decks
-3%synergy
Mana Crypt
14%inclusion5 decks35 decks
12%synergy
Fellwar Stone
14%inclusion5 decks35 decks
-1%synergy
Lotus Petal
11%inclusion4 decks35 decks
4%synergy
Mind Stone
11%inclusion4 decks35 decks
-20%synergy
Mox Opal
11%inclusion4 decks35 decks
8%synergy
Caged Sun
8.6%inclusion3 decks35 decks
-4%synergy
Jeweled Lotus
8.6%inclusion3 decks35 decks
6%synergy
Heraldic Banner
8.6%inclusion3 decks35 decks
3%synergy
Mox Amber
8.6%inclusion3 decks35 decks
4%synergy
Springleaf Drum
8.6%inclusion3 decks35 decks
7%synergy
Nyx Lotus
8.6%inclusion3 decks35 decks
2%synergy
Throne of Eldraine
5.7%inclusion2 decks35 decks
-5%synergy
Extraplanar Lens
5.7%inclusion2 decks35 decks
1%synergy
Lands
Swamp
89%inclusion31 decks35 decks
-6%synergy
Cavern of Souls
14%inclusion5 decks35 decks
8%synergy
Fell the Profane
12%inclusion3 decks26 decks
-7%synergy
Malakir Rebirth
11%inclusion4 decks35 decks
-11%synergy
Gemstone Caverns
11%inclusion4 decks35 decks
7%synergy
Myriad Landscape
8.6%inclusion3 decks35 decks
-18%synergy
Path of Ancestry
8.6%inclusion3 decks35 decks
3%synergy
Boggart Trawler
7.7%inclusion2 decks26 decks
-1%synergy
Snow-Covered Swamp
5.7%inclusion2 decks35 decks
-1%synergy
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