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Karumonix, the Rat King
Price tag $1.19

Legendary CreaturePhyrexian Rat

Magic color symbol for B
Mono-Black

New Cards

Recent-set cards that Karumonix, the Rat King players are trying out in Infect decks.

Arnyn, Deathbloom Botanist Arnyn, Deathbloom Botanist
-1% Synergy $0.38
Ral Zarek, Guest Lecturer Ral Zarek, Guest Lecturer
-1% Synergy $1.97
Withering Curse Withering Curse
-1% Synergy $1.33
Decorum Dissertation Decorum Dissertation
-3% Synergy $6.52
Grave Researcher Grave Researcher
-6% Synergy $2.25

High Synergy Cards

The highest-synergy picks for Karumonix, the Rat King's Infect builds — cards that lean hardest into the Infect theme.

Blightbelly Rat Blightbelly Rat
+88% Synergy $0.29
Piper of the Swarm Piper of the Swarm
+82% Synergy $2.31
Ichor Rats Ichor Rats
+80% Synergy $2.31
Infectious Inquiry Infectious Inquiry
+78% Synergy $0.38
Pack Rat Pack Rat
+74% Synergy $2.48
Ogre Slumlord Ogre Slumlord
+72% Synergy $0.41
Marrow-Gnawer Marrow-Gnawer
+72% Synergy $27.86
Vraska's Fall Vraska's Fall
+71% Synergy $0.36
Drown in Ichor Drown in Ichor
+70% Synergy $0.55
Septic Rats Septic Rats
+69% Synergy $0.43

Top Cards

The staple cards most Karumonix, the Rat King Infect decks run as their core.

Lord Skitter, Sewer King Lord Skitter, Sewer King
+68% Synergy $4.87
Rancid Rats Rancid Rats
+67% Synergy $0.23
Typhoid Rats Typhoid Rats
+63% Synergy $0.21
Lord Skitter's Butcher Lord Skitter's Butcher
+63% Synergy $0.29
Tangled Colony Tangled Colony
+59% Synergy $0.63
Whisper of the Dross Whisper of the Dross
+57% Synergy $0.34
Phyresis Outbreak Phyresis Outbreak
+56% Synergy $11.23
Crypt Rats Crypt Rats
+54% Synergy $0.57
Voracious Vermin Voracious Vermin
+51% Synergy $0.30
Dark Ritual Dark Ritual
-5% Synergy $11.92

Game Changers

High-impact bombs that can take over a Karumonix, the Rat King Infect game on their own.

Vampiric Tutor Vampiric Tutor
-9% Synergy $60.01
Demonic Tutor Demonic Tutor
-10% Synergy $76.77
Bolas's Citadel Bolas's Citadel
-16% Synergy $17.54

Creatures

Creatures that carry the Infect plan in Karumonix, the Rat King decks, from early pressure to payoff.

Stronghold Rats Stronghold Rats
+49% Synergy $0.82
Persistent Marshstalker Persistent Marshstalker
+45% Synergy $0.26
Gnat Miser Gnat Miser
+45% Synergy $0.74
Chittering Skitterling Chittering Skitterling
+45% Synergy $0.20
Burglar Rat Burglar Rat
+42% Synergy $0.24
Wave of Rats Wave of Rats
+42% Synergy $2.98
Ratcatcher Ratcatcher
+39% Synergy $10.33
Changeling Outcast Changeling Outcast
+37% Synergy $2.85
Rat Colony Rat Colony
+35% Synergy $5.58
Ashcoat of the Shadow Swarm Ashcoat of the Shadow Swarm
+33% Synergy $41.79
Nezumi Prowler Nezumi Prowler
+31% Synergy $0.19
Pestilence Rats Pestilence Rats
+31% Synergy $0.33
Ink-Eyes, Servant of Oni Ink-Eyes, Servant of Oni
+30% Synergy $12.93
Ruin Rat Ruin Rat
+30% Synergy $0.21
Nezumi Cutthroat Nezumi Cutthroat
+30% Synergy $0.09
Swarm of Rats Swarm of Rats
+28% Synergy $2.24
Chittering Witch Chittering Witch
+28% Synergy $0.23
Nashi, Moon Sage's Scion Nashi, Moon Sage's Scion
+28% Synergy $3.57
Engine Rat Engine Rat
+27% Synergy $0.27
Nezumi Informant Nezumi Informant
+26% Synergy $0.37
Rat King, Pale Piper Rat King, Pale Piper
+25% Synergy $0.39
Throat Slitter Throat Slitter
+25% Synergy $4.06
Ravenous Rats Ravenous Rats
+24% Synergy $0.51
Gnawing Vermin Gnawing Vermin
+24% Synergy $0.24
Drainpipe Vermin Drainpipe Vermin
+24% Synergy $0.23
Old Flitterfang Old Flitterfang
+23% Synergy $0.39
Rat King, Verminister Rat King, Verminister
+22% Synergy $0.72
Twisted Sewer-Witch Twisted Sewer-Witch
+22% Synergy $0.22
Ruthless Radrat Ruthless Radrat
+22% Synergy $0.32
Razortooth Rats Razortooth Rats
+20% Synergy $0.12
Locust Miser Locust Miser
+19% Synergy $4.99
Valley Rotcaller Valley Rotcaller
+18% Synergy $2.81
Undercity Dire Rat Undercity Dire Rat
+17% Synergy $0.18
Species Specialist Species Specialist
+15% Synergy $10.73
Rotting Rats Rotting Rats
+15% Synergy $1.47
Nezumi Graverobber Nezumi Graverobber
+15% Synergy $0.49
Mukotai Ambusher Mukotai Ambusher
+15% Synergy $0.19
Sinuous Vermin Sinuous Vermin
+15% Synergy $0.26
Innocuous Rat Innocuous Rat
+14% Synergy $0.20
Okiba-Gang Shinobi Okiba-Gang Shinobi
+13% Synergy $1.32
Skullsnatcher Skullsnatcher
+13% Synergy $1.49
Refurbished Familiar Refurbished Familiar
+12% Synergy $0.27
Nezumi Bladeblesser Nezumi Bladeblesser
+12% Synergy $0.23
Elephant-Rat Elephant-Rat
+12% Synergy $0.14
Chittering Rats Chittering Rats
+11% Synergy $0.34
Relentless Rats Relentless Rats
+10% Synergy $5.07
Yawgmoth, Thran Physician Yawgmoth, Thran Physician
+1% Synergy $32.14
Ayara, First of Locthwain Ayara, First of Locthwain
-7% Synergy $8.41
Crypt Ghast Crypt Ghast
-31% Synergy $19.82
Gray Merchant of Asphodel Gray Merchant of Asphodel
-36% Synergy $4.86

Instants

Instant-speed interaction and tricks that keep Karumonix, the Rat King's Infect deck ahead.

Grim Affliction Grim Affliction
+37% Synergy $0.36
Tainted Strike Tainted Strike
+28% Synergy $2.46
Rat Out Rat Out
+27% Synergy $0.27
Anoint with Affliction Anoint with Affliction
+25% Synergy $0.20
Virulent Wound Virulent Wound
+17% Synergy $0.24
Village Rites Village Rites
+15% Synergy $0.69
Corrupted Conviction Corrupted Conviction
+11% Synergy $0.25
Raise the Draugr Raise the Draugr
+10% Synergy $0.13
Foul-Tongue Shriek Foul-Tongue Shriek
+9% Synergy $0.26
Gravepurge Gravepurge
+8% Synergy $0.15
Go for the Throat Go for the Throat
+6% Synergy $0.57
Murder Murder
+6% Synergy $0.19
Offer Immortality Offer Immortality
+4% Synergy $0.26
Altar's Reap Altar's Reap
+3% Synergy $0.40
Hero's Downfall Hero's Downfall
+2% Synergy $0.21
Defile Defile
+1% Synergy $1.34
Doom Blade Doom Blade
0% Synergy $0.62
Sudden Spoiling Sudden Spoiling
-2% Synergy $8.52
Feign Death Feign Death
-2% Synergy $0.94
Baleful Mastery Baleful Mastery
-2% Synergy $3.61
Tragic Slip Tragic Slip
-3% Synergy $0.26
Bitter Triumph Bitter Triumph
-3% Synergy $0.30
Not Dead After All Not Dead After All
-4% Synergy $1.76
Undying Malice Undying Malice
-4% Synergy $0.32
Fell the Profane Fell Mire Fell the Profane
-5% Synergy $2.42
Consuming Corruption Consuming Corruption
-5% Synergy $0.36
Deadly Dispute Deadly Dispute
-6% Synergy $0.32
Infernal Grasp Infernal Grasp
-8% Synergy $0.56
Sheoldred's Edict Sheoldred's Edict
-9% Synergy $1.35
Malakir Rebirth Malakir Mire Malakir Rebirth
-10% Synergy $13.15
Culling the Weak Culling the Weak
-11% Synergy $7.76
Cabal Ritual Cabal Ritual
-12% Synergy $13.61
Deadly Rollick Deadly Rollick
-14% Synergy $27.53
Withering Torment Withering Torment
-15% Synergy $4.15

Sorceries

Sorceries that push the Infect game plan forward for Karumonix, the Rat King.

Revenge of the Rats Revenge of the Rats
+35% Synergy $0.28
Vat Emergence Vat Emergence
+34% Synergy $0.28
Crippling Fear Crippling Fear
+31% Synergy $2.66
Spread the Sickness Spread the Sickness
+24% Synergy $0.13
Kindred Dominance Kindred Dominance
+22% Synergy $3.26
Patriarch's Bidding Patriarch's Bidding
+21% Synergy $4.28
Swarmyard Massacre Swarmyard Massacre
+21% Synergy $3.91
Bloodline Bidding Bloodline Bidding
+17% Synergy $1.78
Feed the Infection Feed the Infection
+16% Synergy $0.20
Caress of Phyrexia Caress of Phyrexia
+16% Synergy $0.30
Geth's Summons Geth's Summons
+14% Synergy $0.43
Plague of Vermin Plague of Vermin
+11% Synergy $21.94
Lab Rats Lab Rats
+10% Synergy $0.88
Unearth Unearth
+6% Synergy $0.60
Echoing Return Echoing Return
+6% Synergy $0.22
Pact of the Serpent Pact of the Serpent
+6% Synergy $0.77
Forever Young Forever Young
+6% Synergy $0.11
Haunting Voyage Haunting Voyage
+6% Synergy $0.31
Return from Extinction Return from Extinction
+6% Synergy $0.24
Gruesome Fate Gruesome Fate
+5% Synergy $1.12
Psychic Whorl Psychic Whorl
+5% Synergy $0.07
Fell Fell
+4% Synergy $0.39
Read the Bones Read the Bones
+3% Synergy $0.29
Splinter's Technique Splinter's Technique
+3% Synergy $2.08
Eaten Alive Eaten Alive
+2% Synergy $0.12
Night's Whisper Night's Whisper
-1% Synergy $0.26
Diabolic Tutor Diabolic Tutor
-2% Synergy $2.09
Insatiable Avarice Insatiable Avarice
-4% Synergy $4.48
Sign in Blood Sign in Blood
-5% Synergy $4.10
Diabolic Intent Diabolic Intent
-6% Synergy $17.57
Bubbling Muck Bubbling Muck
-8% Synergy $3.57
Mutilate Mutilate
-9% Synergy $1.95
Damnation Damnation
-11% Synergy $20.72
Feed the Swarm Feed the Swarm
-12% Synergy $0.20
Victimize Victimize
-17% Synergy $2.27
Toxic Deluge Toxic Deluge
-25% Synergy $3.31
Reanimate Reanimate
-30% Synergy $8.61

Utility Artifacts

Artifacts that add consistency and utility to Karumonix, the Rat King Infect decks.

Herald's Horn Herald's Horn
+38% Synergy $4.39
Contagion Clasp Contagion Clasp
+37% Synergy $0.33
Bontu's Monument Bontu's Monument
+25% Synergy $6.96
Vanquisher's Banner Vanquisher's Banner
+24% Synergy $4.76
Contagion Engine Contagion Engine
+22% Synergy $13.57
Grafted Exoskeleton Grafted Exoskeleton
+16% Synergy $5.46
Prosthetic Injector Prosthetic Injector
+15% Synergy $0.24
Door of Destinies Door of Destinies
+10% Synergy $2.83
Icon of Ancestry Icon of Ancestry
+10% Synergy $0.43
Skullclamp Skullclamp
+9% Synergy $4.93
Thrumming Stone Thrumming Stone
+9% Synergy $22.25
Coat of Arms Coat of Arms
+9% Synergy $18.43
Chronicle of Victory Chronicle of Victory
+8% Synergy $19.48
Sword of Truth and Justice Sword of Truth and Justice
+7% Synergy $35.22
Banner of Kinship Banner of Kinship
+5% Synergy $5.54
Eldrazi Monument Eldrazi Monument
+3% Synergy $9.35
Whip of Erebos Whip of Erebos
+2% Synergy $8.47
Whispersilk Cloak Whispersilk Cloak
+1% Synergy $1.37
Expedition Map Expedition Map
-7% Synergy $0.83
Jet Medallion Jet Medallion
-9% Synergy $10.25
Wayfarer's Bauble Wayfarer's Bauble
-9% Synergy $0.33
Swiftfoot Boots Swiftfoot Boots
-13% Synergy $2.46
The Darkness Crystal The Darkness Crystal
-13% Synergy $4.36
Ashnod's Altar Ashnod's Altar
-15% Synergy $14.95
Lightning Greaves Lightning Greaves
-21% Synergy $3.66

Enchantments

Enchantments that reinforce the Infect strategy in Karumonix, the Rat King decks.

Necrogen Communion Necrogen Communion
+49% Synergy $0.30
Cover of Darkness Cover of Darkness
+35% Synergy $20.73
Phyresis Phyresis
+30% Synergy $1.35
Haunted One Haunted One
+18% Synergy $5.92
Oversold Cemetery Oversold Cemetery
+16% Synergy $2.69
Bad Moon Bad Moon
+16% Synergy $2.65
Tribute to Horobi Echo of Death's Wail Tribute to Horobi
+13% Synergy $0.28
Lord Skitter's Blessing Lord Skitter's Blessing
+10% Synergy $0.45
Intimidation Intimidation
+9% Synergy $0.93
Relic Putrescence Relic Putrescence
+8% Synergy $0.20
Glistening Oil Glistening Oil
+6% Synergy $13.32
Snake Cult Initiation Snake Cult Initiation
+6% Synergy $0.47
Vampiric Rites Vampiric Rites
+4% Synergy $0.18
Phyrexian Arena Phyrexian Arena
0% Synergy $4.33
Grave Pact Grave Pact
-2% Synergy $31.23
Phyrexian Reclamation Phyrexian Reclamation
-2% Synergy $2.64
Dictate of Erebos Dictate of Erebos
-4% Synergy $17.33
Black Market Black Market
-7% Synergy $5.59
Black Market Connections Black Market Connections
-9% Synergy $13.42

Planeswalkers

Planeswalkers that back up Karumonix, the Rat King's Infect game plan.

Vraska, Betrayal's Sting Vraska, Betrayal's Sting
+37% Synergy $0.73
Liliana of the Dark Realms Liliana of the Dark Realms
-4% Synergy $9.15

Utility Lands

Non-basic lands that pull extra weight in Karumonix, the Rat King Infect decks.

Karn's Bastion Karn's Bastion
+59% Synergy $2.27
Swarmyard Swarmyard
+57% Synergy $4.93
Mudflat Village Mudflat Village
+41% Synergy $0.30
Rogue's Passage Rogue's Passage
+28% Synergy $0.40
Access Tunnel Access Tunnel
+19% Synergy $0.38
Three Tree City Three Tree City
+16% Synergy $27.19
Mortuary Mire Mortuary Mire
+13% Synergy $0.41
Secret Tunnel Secret Tunnel
+12% Synergy $2.59
Bojuka Bog Bojuka Bog
+9% Synergy $0.95
Witch's Cottage Witch's Cottage
+7% Synergy $0.86
Inkmoth Nexus Inkmoth Nexus
+7% Synergy $13.91
The Dross Pits The Dross Pits
+6% Synergy $0.20
Minas Morgul, Dark Fortress Minas Morgul, Dark Fortress
+4% Synergy $18.62
Barren Moor Barren Moor
+3% Synergy $0.28
Crypt of Agadeem Crypt of Agadeem
+2% Synergy $2.34
Shizo, Death's Storehouse Shizo, Death's Storehouse
0% Synergy $35.73
Temple of the False God Temple of the False God
-1% Synergy $0.29
Castle Locthwain Castle Locthwain
-4% Synergy $3.77
War Room War Room
-6% Synergy $2.87
Takenuma, Abandoned Mire Takenuma, Abandoned Mire
-8% Synergy $11.29
Nykthos, Shrine to Nyx Nykthos, Shrine to Nyx
-9% Synergy $54.27
Cabal Stronghold Cabal Stronghold
-10% Synergy $10.98
Phyrexian Tower Phyrexian Tower
-10% Synergy $25.29
Reliquary Tower Reliquary Tower
-11% Synergy $3.36
Urborg, Tomb of Yawgmoth Urborg, Tomb of Yawgmoth
-13% Synergy $63.85
Cabal Coffers Cabal Coffers
-17% Synergy $34.50

Mana Artifacts

Mana rocks and fixing to power out Karumonix, the Rat King's Infect strategy.

Glistening Sphere Glistening Sphere
+48% Synergy $12.90
Staff of Compleation Staff of Compleation
+24% Synergy $3.44
Patchwork Banner Patchwork Banner
+19% Synergy $1.89
Phyrexian Atlas Phyrexian Atlas
+14% Synergy $0.22
Heraldic Banner Heraldic Banner
+9% Synergy $0.36
Commander's Sphere Commander's Sphere
-1% Synergy $0.26
Caged Sun Caged Sun
-3% Synergy $3.57
Charcoal Diamond Charcoal Diamond
-4% Synergy $0.32
Sol Ring Sol Ring
-6% Synergy $1.84
The Soul Stone The Soul Stone
-8% Synergy $109.41
Mind Stone Mind Stone
-12% Synergy $0.31
Arcane Signet Arcane Signet
-14% Synergy $0.69
Thought Vessel Thought Vessel
-19% Synergy $1.92

Lands

The mana base behind Karumonix, the Rat King's Infect decks.

Path of Ancestry Path of Ancestry
+36% Synergy $0.31
Cavern of Souls Cavern of Souls
+9% Synergy $51.61
Big Apple, 3 a.m. Big Apple, 3 a.m.
+8% Synergy $0.42
Escape Tunnel Escape Tunnel
+7% Synergy $0.26
Command Tower Command Tower
+4% Synergy $0.34
Swamp Swamp
+3% Synergy $0.14
Evolving Wilds Evolving Wilds
+3% Synergy $0.33
Myriad Landscape Myriad Landscape
-5% Synergy $0.31
Fell the Profane Fell Mire Fell the Profane
-5% Synergy $2.42
Malakir Rebirth Malakir Mire Malakir Rebirth
-10% Synergy $13.15

Similar Commanders

The following Commanders share a similar playing style, strategy, or theme like Karumonix, the Rat King: Infect.