App icon for MTG Life Counter: Lotus
MTG Life Counter: Lotus Track life and commander damage for up to 10 players
Launch

Karumonix, the Rat King
Price tag $0.98

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 $0.33
Ral Zarek, Guest Lecturer Ral Zarek, Guest Lecturer
-1% Synergy $1.70
Withering Curse Withering Curse
-1% Synergy $1.01
Decorum Dissertation Decorum Dissertation
-3% Synergy $5.37
Grave Researcher Grave Researcher
-6% Synergy $1.92

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 $0.34
Piper of the Swarm Piper of the Swarm
+82% Synergy $2.25
Ichor Rats Ichor Rats
+80% Synergy $1.88
Infectious Inquiry Infectious Inquiry
+78% Synergy $0.41
Pack Rat Pack Rat
+74% Synergy $3.50
Ogre Slumlord Ogre Slumlord
+72% Synergy $0.33
Marrow-Gnawer Marrow-Gnawer
+72% Synergy $30.79
Vraska's Fall Vraska's Fall
+71% Synergy $0.36
Drown in Ichor Drown in Ichor
+70% Synergy $0.78
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 $4.52
Rancid Rats Rancid Rats
+67% Synergy $0.20
Typhoid Rats Typhoid Rats
+63% Synergy $0.28
Lord Skitter's Butcher Lord Skitter's Butcher
+63% Synergy $0.32
Tangled Colony Tangled Colony
+59% Synergy $1.03
Whisper of the Dross Whisper of the Dross
+57% Synergy $0.35
Phyresis Outbreak Phyresis Outbreak
+56% Synergy $11.96
Crypt Rats Crypt Rats
+54% Synergy $0.50
Voracious Vermin Voracious Vermin
+51% Synergy $0.32
Dark Ritual Dark Ritual
-5% Synergy $5.94

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 $54.82
Demonic Tutor Demonic Tutor
-10% Synergy $61.95
Bolas's Citadel Bolas's Citadel
-16% Synergy $14.92

Creatures

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

Stronghold Rats Stronghold Rats
+49% Synergy $0.54
Persistent Marshstalker Persistent Marshstalker
+45% Synergy $0.27
Gnat Miser Gnat Miser
+45% Synergy $0.79
Chittering Skitterling Chittering Skitterling
+45% Synergy $0.19
Burglar Rat Burglar Rat
+42% Synergy $0.25
Wave of Rats Wave of Rats
+42% Synergy $3.22
Ratcatcher Ratcatcher
+39% Synergy $14.08
Changeling Outcast Changeling Outcast
+37% Synergy $2.30
Rat Colony Rat Colony
+35% Synergy $5.94
Ashcoat of the Shadow Swarm Ashcoat of the Shadow Swarm
+33% Synergy $40.83
Nezumi Prowler Nezumi Prowler
+31% Synergy $0.30
Pestilence Rats Pestilence Rats
+31% Synergy $0.33
Ink-Eyes, Servant of Oni Ink-Eyes, Servant of Oni
+30% Synergy $13.59
Ruin Rat Ruin Rat
+30% Synergy $0.18
Nezumi Cutthroat Nezumi Cutthroat
+30% Synergy $0.09
Swarm of Rats Swarm of Rats
+28% Synergy $3.03
Chittering Witch Chittering Witch
+28% Synergy $0.28
Nashi, Moon Sage's Scion Nashi, Moon Sage's Scion
+28% Synergy $3.71
Engine Rat Engine Rat
+27% Synergy $0.26
Nezumi Informant Nezumi Informant
+26% Synergy $0.38
Rat King, Pale Piper Rat King, Pale Piper
+25% Synergy $0.34
Throat Slitter Throat Slitter
+25% Synergy $3.92
Ravenous Rats Ravenous Rats
+24% Synergy $0.58
Gnawing Vermin Gnawing Vermin
+24% Synergy $0.22
Drainpipe Vermin Drainpipe Vermin
+24% Synergy $0.37
Old Flitterfang Old Flitterfang
+23% Synergy $0.40
Rat King, Verminister Rat King, Verminister
+22% Synergy $0.87
Twisted Sewer-Witch Twisted Sewer-Witch
+22% Synergy $0.31
Ruthless Radrat Ruthless Radrat
+22% Synergy $0.34
Razortooth Rats Razortooth Rats
+20% Synergy $0.12
Locust Miser Locust Miser
+19% Synergy $3.42
Valley Rotcaller Valley Rotcaller
+18% Synergy $3.15
Undercity Dire Rat Undercity Dire Rat
+17% Synergy $0.20
Species Specialist Species Specialist
+15% Synergy $10.25
Rotting Rats Rotting Rats
+15% Synergy $1.48
Nezumi Graverobber Nezumi Graverobber
+15% Synergy $0.53
Mukotai Ambusher Mukotai Ambusher
+15% Synergy $0.27
Sinuous Vermin Sinuous Vermin
+15% Synergy $0.23
Innocuous Rat Innocuous Rat
+14% Synergy $0.18
Okiba-Gang Shinobi Okiba-Gang Shinobi
+13% Synergy $1.26
Skullsnatcher Skullsnatcher
+13% Synergy $1.40
Refurbished Familiar Refurbished Familiar
+12% Synergy $0.37
Nezumi Bladeblesser Nezumi Bladeblesser
+12% Synergy $0.21
Elephant-Rat Elephant-Rat
+12% Synergy $0.09
Chittering Rats Chittering Rats
+11% Synergy $0.37
Relentless Rats Relentless Rats
+10% Synergy $4.42
Yawgmoth, Thran Physician Yawgmoth, Thran Physician
+1% Synergy $30.68
Ayara, First of Locthwain Ayara, First of Locthwain
-7% Synergy $7.69
Crypt Ghast Crypt Ghast
-31% Synergy $16.51
Gray Merchant of Asphodel Gray Merchant of Asphodel
-36% Synergy $5.52

Instants

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

Grim Affliction Grim Affliction
+37% Synergy $0.33
Tainted Strike Tainted Strike
+28% Synergy $3.00
Rat Out Rat Out
+27% Synergy $0.26
Anoint with Affliction Anoint with Affliction
+25% Synergy $0.24
Virulent Wound Virulent Wound
+17% Synergy $0.21
Village Rites Village Rites
+15% Synergy $0.38
Corrupted Conviction Corrupted Conviction
+11% Synergy $0.29
Raise the Draugr Raise the Draugr
+10% Synergy $0.23
Foul-Tongue Shriek Foul-Tongue Shriek
+9% Synergy $0.25
Gravepurge Gravepurge
+8% Synergy $0.21
Go for the Throat Go for the Throat
+6% Synergy $0.57
Murder Murder
+6% Synergy $0.21
Offer Immortality Offer Immortality
+4% Synergy $0.27
Altar's Reap Altar's Reap
+3% Synergy $0.40
Hero's Downfall Hero's Downfall
+2% Synergy $0.28
Defile Defile
+1% Synergy $1.35
Doom Blade Doom Blade
0% Synergy $0.24
Sudden Spoiling Sudden Spoiling
-2% Synergy $6.46
Feign Death Feign Death
-2% Synergy $1.39
Baleful Mastery Baleful Mastery
-2% Synergy $2.90
Tragic Slip Tragic Slip
-3% Synergy $0.35
Bitter Triumph Bitter Triumph
-3% Synergy $0.32
Not Dead After All Not Dead After All
-4% Synergy $1.96
Undying Malice Undying Malice
-4% Synergy $0.28
Fell the Profane Fell Mire Fell the Profane
-5% Synergy $3.86
Consuming Corruption Consuming Corruption
-5% Synergy $0.33
Deadly Dispute Deadly Dispute
-6% Synergy $0.34
Infernal Grasp Infernal Grasp
-8% Synergy $0.35
Sheoldred's Edict Sheoldred's Edict
-9% Synergy $1.72
Malakir Rebirth Malakir Mire Malakir Rebirth
-10% Synergy $13.47
Culling the Weak Culling the Weak
-11% Synergy $6.71
Cabal Ritual Cabal Ritual
-12% Synergy $13.51
Deadly Rollick Deadly Rollick
-14% Synergy $27.91
Withering Torment Withering Torment
-15% Synergy $0.86

Sorceries

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

Revenge of the Rats Revenge of the Rats
+35% Synergy $0.31
Vat Emergence Vat Emergence
+34% Synergy $0.35
Crippling Fear Crippling Fear
+31% Synergy $2.42
Spread the Sickness Spread the Sickness
+24% Synergy $0.19
Kindred Dominance Kindred Dominance
+22% Synergy $4.09
Patriarch's Bidding Patriarch's Bidding
+21% Synergy $3.69
Swarmyard Massacre Swarmyard Massacre
+21% Synergy $4.03
Bloodline Bidding Bloodline Bidding
+17% Synergy $2.49
Feed the Infection Feed the Infection
+16% Synergy $0.26
Caress of Phyrexia Caress of Phyrexia
+16% Synergy $0.30
Geth's Summons Geth's Summons
+14% Synergy $0.40
Plague of Vermin Plague of Vermin
+11% Synergy $21.87
Lab Rats Lab Rats
+10% Synergy $0.60
Unearth Unearth
+6% Synergy $0.53
Echoing Return Echoing Return
+6% Synergy $0.23
Pact of the Serpent Pact of the Serpent
+6% Synergy $0.58
Forever Young Forever Young
+6% Synergy $0.14
Haunting Voyage Haunting Voyage
+6% Synergy $0.40
Return from Extinction Return from Extinction
+6% Synergy $0.27
Gruesome Fate Gruesome Fate
+5% Synergy $1.16
Psychic Whorl Psychic Whorl
+5% Synergy $0.13
Fell Fell
+4% Synergy $0.35
Read the Bones Read the Bones
+3% Synergy $0.34
Splinter's Technique Splinter's Technique
+3% Synergy $2.01
Eaten Alive Eaten Alive
+2% Synergy $0.24
Night's Whisper Night's Whisper
-1% Synergy $5.42
Diabolic Tutor Diabolic Tutor
-2% Synergy $2.35
Insatiable Avarice Insatiable Avarice
-4% Synergy $4.79
Sign in Blood Sign in Blood
-5% Synergy $3.83
Diabolic Intent Diabolic Intent
-6% Synergy $16.42
Bubbling Muck Bubbling Muck
-8% Synergy $3.40
Mutilate Mutilate
-9% Synergy $2.01
Damnation Damnation
-11% Synergy $20.48
Feed the Swarm Feed the Swarm
-12% Synergy $0.16
Victimize Victimize
-17% Synergy $1.58
Toxic Deluge Toxic Deluge
-25% Synergy $4.37
Reanimate Reanimate
-30% Synergy $9.76

Utility Artifacts

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

Herald's Horn Herald's Horn
+38% Synergy $5.10
Contagion Clasp Contagion Clasp
+37% Synergy $0.37
Bontu's Monument Bontu's Monument
+25% Synergy $4.94
Vanquisher's Banner Vanquisher's Banner
+24% Synergy $5.20
Contagion Engine Contagion Engine
+22% Synergy $13.41
Grafted Exoskeleton Grafted Exoskeleton
+16% Synergy $5.59
Prosthetic Injector Prosthetic Injector
+15% Synergy $0.23
Door of Destinies Door of Destinies
+10% Synergy $2.62
Icon of Ancestry Icon of Ancestry
+10% Synergy $0.42
Skullclamp Skullclamp
+9% Synergy $5.65
Thrumming Stone Thrumming Stone
+9% Synergy $22.63
Coat of Arms Coat of Arms
+9% Synergy $20.16
Chronicle of Victory Chronicle of Victory
+8% Synergy $23.98
Sword of Truth and Justice Sword of Truth and Justice
+7% Synergy $31.63
Banner of Kinship Banner of Kinship
+5% Synergy $8.17
Eldrazi Monument Eldrazi Monument
+3% Synergy $10.44
Whip of Erebos Whip of Erebos
+2% Synergy $9.07
Whispersilk Cloak Whispersilk Cloak
+1% Synergy $1.71
Expedition Map Expedition Map
-7% Synergy $0.95
Jet Medallion Jet Medallion
-9% Synergy $12.26
Wayfarer's Bauble Wayfarer's Bauble
-9% Synergy $4.67
Swiftfoot Boots Swiftfoot Boots
-13% Synergy $2.28
The Darkness Crystal The Darkness Crystal
-13% Synergy $4.44
Ashnod's Altar Ashnod's Altar
-15% Synergy $15.57
Lightning Greaves Lightning Greaves
-21% Synergy $4.52

Enchantments

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

Necrogen Communion Necrogen Communion
+49% Synergy $0.35
Cover of Darkness Cover of Darkness
+35% Synergy $22.75
Phyresis Phyresis
+30% Synergy $2.92
Haunted One Haunted One
+18% Synergy $5.25
Oversold Cemetery Oversold Cemetery
+16% Synergy $2.64
Bad Moon Bad Moon
+16% Synergy $3.07
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 $0.43
Intimidation Intimidation
+9% Synergy $0.94
Relic Putrescence Relic Putrescence
+8% Synergy $0.18
Glistening Oil Glistening Oil
+6% Synergy $12.32
Snake Cult Initiation Snake Cult Initiation
+6% Synergy $0.47
Vampiric Rites Vampiric Rites
+4% Synergy $0.13
Phyrexian Arena Phyrexian Arena
0% Synergy $4.43
Grave Pact Grave Pact
-2% Synergy $33.84
Phyrexian Reclamation Phyrexian Reclamation
-2% Synergy $2.99
Dictate of Erebos Dictate of Erebos
-4% Synergy $19.16
Black Market Black Market
-7% Synergy $6.17
Black Market Connections Black Market Connections
-9% Synergy $10.16

Planeswalkers

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

Vraska, Betrayal's Sting Vraska, Betrayal's Sting
+37% Synergy $0.96
Liliana of the Dark Realms Liliana of the Dark Realms
-4% Synergy $9.20

Utility Lands

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

Karn's Bastion Karn's Bastion
+59% Synergy $2.57
Swarmyard Swarmyard
+57% Synergy $6.35
Mudflat Village Mudflat Village
+41% Synergy $0.32
Rogue's Passage Rogue's Passage
+28% Synergy $0.36
Access Tunnel Access Tunnel
+19% Synergy $0.40
Three Tree City Three Tree City
+16% Synergy $28.42
Mortuary Mire Mortuary Mire
+13% Synergy $0.39
Secret Tunnel Secret Tunnel
+12% Synergy $2.40
Bojuka Bog Bojuka Bog
+9% Synergy $1.93
Witch's Cottage Witch's Cottage
+7% Synergy $1.06
Inkmoth Nexus Inkmoth Nexus
+7% Synergy $10.83
The Dross Pits The Dross Pits
+6% Synergy $0.23
Minas Morgul, Dark Fortress Minas Morgul, Dark Fortress
+4% Synergy $17.65
Barren Moor Barren Moor
+3% Synergy $0.26
Crypt of Agadeem Crypt of Agadeem
+2% Synergy $4.36
Shizo, Death's Storehouse Shizo, Death's Storehouse
0% Synergy $33.75
Temple of the False God Temple of the False God
-1% Synergy $0.26
Castle Locthwain Castle Locthwain
-4% Synergy $4.58
War Room War Room
-6% Synergy $5.79
Takenuma, Abandoned Mire Takenuma, Abandoned Mire
-8% Synergy $10.89
Nykthos, Shrine to Nyx Nykthos, Shrine to Nyx
-9% Synergy $53.41
Cabal Stronghold Cabal Stronghold
-10% Synergy $12.47
Phyrexian Tower Phyrexian Tower
-10% Synergy $28.19
Reliquary Tower Reliquary Tower
-11% Synergy $3.52
Urborg, Tomb of Yawgmoth Urborg, Tomb of Yawgmoth
-13% Synergy $54.58
Cabal Coffers Cabal Coffers
-17% Synergy $29.97

Mana Artifacts

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

Glistening Sphere Glistening Sphere
+48% Synergy $12.62
Staff of Compleation Staff of Compleation
+24% Synergy $4.16
Patchwork Banner Patchwork Banner
+19% Synergy $2.50
Phyrexian Atlas Phyrexian Atlas
+14% Synergy $0.22
Heraldic Banner Heraldic Banner
+9% Synergy $0.37
Commander's Sphere Commander's Sphere
-1% Synergy $0.34
Caged Sun Caged Sun
-3% Synergy $3.72
Charcoal Diamond Charcoal Diamond
-4% Synergy $0.38
Sol Ring Sol Ring
-6% Synergy $1.55
The Soul Stone The Soul Stone
-8% Synergy $101.88
Mind Stone Mind Stone
-12% Synergy $0.31
Arcane Signet Arcane Signet
-14% Synergy $0.89
Thought Vessel Thought Vessel
-19% Synergy $2.59

Lands

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

Path of Ancestry Path of Ancestry
+36% Synergy $0.23
Cavern of Souls Cavern of Souls
+9% Synergy $51.14
Big Apple, 3 a.m. Big Apple, 3 a.m.
+8% Synergy $0.37
Escape Tunnel Escape Tunnel
+7% Synergy $0.28
Command Tower Command Tower
+4% Synergy $0.31
Swamp Swamp
+3% Synergy $0.08
Evolving Wilds Evolving Wilds
+3% Synergy $0.25
Myriad Landscape Myriad Landscape
-5% Synergy $0.37
Fell the Profane Fell Mire Fell the Profane
-5% Synergy $3.86
Malakir Rebirth Malakir Mire Malakir Rebirth
-10% Synergy $13.47

Similar Commanders

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