Art by Helge C. Balzer

Karumonix, the Rat King

Legendary Creature — Phyrexian Rat

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) Other Rats you control have toxic 1. When Karumonix enters, look at the top five cards of your library. You may reveal any number of Rat cards from among them and put the revealed cards into your hand. Put the rest on the bottom of your library in a random order.

Build a deck with Karumonix, the Rat King

Average Card Type Breakdown

Creature

34%

Instant

Sorcery

Artifact

Enchantment

Land

35%

Average Mana Curve

18%

34%

22%

12%

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Most Played New Cards Creatures Instants Sorceries Utility Artifacts Mana Artifacts Enchantments Planeswalkers Utility Lands Lands Public Decks Site Decks

Most Played With Karumonix, the Rat King (172)

Sol Ring

78% of decks · $1.38

Rat Colony

57% of decks · $5.47

Dark Ritual

57% of decks · $7.19

Rancid Rats

55% of decks · $0.24

Lord Skitter's Butcher

54% of decks · $0.32

Drown in Ichor

54% of decks · $0.79

Tangled Colony

54% of decks · $0.76

Crypt Rats

53% of decks · $0.58

Bontu's Monument

52% of decks · $4.60

Jet Medallion

52% of decks · $14.56

Burglar Rat

50% of decks · $0.31

Arcane Signet

49% of decks · $0.49

Voracious Vermin

48% of decks · $0.32

Whisper of the Dross

46% of decks · $0.30

Persistent Marshstalker

45% of decks · $0.28

Herald's Horn

44% of decks · $5.82

Ashcoat of the Shadow Swarm

42% of decks · $38.50

Stronghold Rats

41% of decks · $0.59

Gnat Miser

41% of decks · $0.94

Revenge of the Rats

40% of decks · $0.38

Phyresis Outbreak

39% of decks · $12.61

Village Rites

39% of decks · $0.99

Ratcatcher

38% of decks · $11.68

Feed the Swarm

37% of decks · $0.24

Necrogen Communion

35% of decks · $0.34

Phyrexian Arena

35% of decks · $4.26

Cover of Darkness

35% of decks · $21.67

Swarm of Rats

34% of decks · $3.22

Skullclamp

34% of decks · $5.21

Defile

34% of decks · $1.32

Rat King, Verminister

34% of decks · $0.69

Wave of Rats

33% of decks · $3.17

Rat King, Pale Piper

32% of decks · $0.37

Pestilence Rats

31% of decks · $0.32

Crippling Fear

31% of decks · $3.42

Chittering Witch

30% of decks · $0.34

Vanquisher's Banner

30% of decks · $5.55

Glistening Sphere

29% of decks · $13.19

Vraska, Betrayal's Sting

29% of decks · $2.47

Grim Affliction

29% of decks · $0.32

29% of decks · $2.74

Ink-Eyes, Servant of Oni

29% of decks · $13.18

Go for the Throat

28% of decks · $0.62

Contagion Clasp

28% of decks · $0.36

Patriarch's Bidding

28% of decks · $3.70

Ruin Rat

27% of decks · $0.24

Nezumi Prowler

27% of decks · $0.65

Changeling Outcast

27% of decks · $2.38

Rat Out

26% of decks · $0.39

Kindred Dominance

26% of decks · $4.94

Nezumi Informant

25% of decks · $0.36

Engine Rat

25% of decks · $0.30

Ravenous Rats

25% of decks · $0.61

Vat Emergence

25% of decks · $0.32

Nashi, Moon Sage's Scion

24% of decks · $3.56

Patchwork Banner

24% of decks · $2.79

Gnawing Vermin

22% of decks · $0.28

Valley Rotcaller

22% of decks · $1.97

Thrumming Stone

22% of decks · $21.81

Demonic Tutor

22% of decks · $69.17

Drainpipe Vermin

22% of decks · $0.39

Deadly Dispute

21% of decks · $0.26

Charcoal Diamond

21% of decks · $0.35

Ayara, First of Locthwain

21% of decks · $8.55

Bad Moon

20% of decks · $4.20

Twisted Sewer-Witch

20% of decks · $0.31

Corrupted Conviction

20% of decks · $0.35

Undercity Dire Rat

19% of decks · $0.15

Relentless Rats

19% of decks · $3.98

Swarmyard Massacre

19% of decks · $4.54

Old Flitterfang

19% of decks · $0.51

Tainted Strike

19% of decks · $3.26

Bloodline Bidding

19% of decks · $2.93

Throat Slitter

19% of decks · $3.80

Swiftfoot Boots

18% of decks

Murder

18% of decks · $0.18

Locust Miser

18% of decks · $3.73

Phyresis

18% of decks · $2.39

Oversold Cemetery

17% of decks · $2.60

Species Specialist

17% of decks · $10.42

Infernal Grasp

17% of decks · $0.33

Grave Pact

17% of decks · $30.52

Night's Whisper

17% of decks · $6.25

Lightning Greaves

16% of decks · $4.00

Haunted One

16% of decks · $5.55

Vampiric Tutor

16% of decks · $54.45

Mind Stone

16% of decks

Gray Merchant of Asphodel

16% of decks · $3.90

Crypt Ghast

15% of decks · $18.07

Tragic Slip

15% of decks · $0.26

Staff of Compleation

15% of decks · $3.97

Black Market

15% of decks · $6.40

Bolas's Citadel

15% of decks · $16.17

Deadly Rollick

15% of decks · $28.68

Contagion Engine

15% of decks · $14.32

Innocuous Rat

15% of decks · $0.22

Read the Bones

14% of decks · $0.29

Coat of Arms

14% of decks · $19.25

Black Market Connections

14% of decks · $10.47

Mukotai Ambusher

14% of decks · $0.19

Diabolic Tutor

14% of decks · $2.21

Withering Torment

14% of decks · $1.58

Heraldic Banner

14% of decks · $0.33

Rotting Rats

13% of decks · $1.59

Nezumi Graverobber

13% of decks

Feed the Infection

13% of decks · $0.25

Refurbished Familiar

12% of decks · $0.32

Door of Destinies

12% of decks · $2.49

Victimize

12% of decks · $1.34

Nezumi Bladeblesser

12% of decks · $0.26

Toxic Deluge

12% of decks · $5.17

Tribute to Horobi

12% of decks

Foul-Tongue Shriek

12% of decks · $0.19

Chronicle of Victory

12% of decks · $21.97

Echoing Return

12% of decks · $0.34

Banner of Kinship

12% of decks · $7.39

Whip of Erebos

12% of decks · $9.52

Plague of Vermin

11% of decks · $20.80

Damnation

11% of decks · $21.01

Icon of Ancestry

11% of decks · $0.36

Unearth

11% of decks · $0.54

Diabolic Intent

11% of decks · $17.18

The Darkness Crystal

10% of decks · $4.03

Daggerfang Duo

10% of decks · $0.15

Skullsnatcher

10% of decks · $1.31

Phyrexian Atlas

10% of decks · $0.23

Reanimate

10% of decks · $10.11

Consuming Corruption

10% of decks · $0.26

Malakir Rebirth

10% of decks

Chittering Rats

10% of decks · $0.29

Thought Vessel

10% of decks

Vampiric Rites

9% of decks · $0.17

Okiba-Gang Shinobi

9% of decks · $1.18

Caress of Phyrexia

9% of decks · $0.28

Gruesome Fate

9% of decks · $1.15

Liliana of the Dark Realms

9% of decks · $9.30

Hero's Downfall

9% of decks · $0.33

Thornplate Intimidator

9% of decks · $0.09

Virulent Wound

9% of decks · $0.24

Raise the Draugr

9% of decks · $0.30

Doom Blade

8% of decks · $0.24

Gravepurge

8% of decks · $0.17

Geth's Summons

8% of decks · $0.38

Fell the Profane

8% of decks

Caged Sun

8% of decks · $3.87

Ashnod's Altar

8% of decks · $16.88

Lab Rats

8% of decks

Lord Skitter's Blessing

7% of decks · $0.36

Eldrazi Monument

7% of decks · $10.65

Thornbite Staff

7% of decks · $21.63

Grafted Exoskeleton

7% of decks

Dictate of Erebos

7% of decks · $17.52

Culling the Weak

7% of decks · $8.04

Commander's Sphere

7% of decks · $0.34

The Soul Stone

7% of decks · $84.20

Pact of the Serpent

7% of decks · $1.05

Wayfarer's Bauble

7% of decks · $5.61

Mutilate

7% of decks · $2.15

Cabal Ritual

6% of decks

Intimidation

6% of decks · $0.90

Phyrexian Reclamation

6% of decks · $2.86

Bubbling Muck

6% of decks · $4.87

Grim Tutor

6% of decks · $23.87

Gathering Stone

6% of decks · $0.47

Fell

6% of decks · $0.36

The Meathook Massacre

6% of decks · $24.67

Offer Immortality

6% of decks · $0.23

Forever Young

6% of decks · $0.14

Sudden Spoiling

6% of decks · $6.86

Return from Extinction

5% of decks · $0.29

Altar's Reap

5% of decks · $0.39

Sword of the Squeak

5% of decks · $1.13

New Cards

Rank Rat

10% of decks · $0.22

Orcrist, Goblin-cleaver

2% of decks · $8.93

My Precious

1% of decks

Lich's Relic

1% of decks · $1.20

Hall of Echoes

1% of decks · $2.70

Creatures (50)

Rat Colony

57% of decks · $5.47

Rancid Rats

55% of decks · $0.24

Lord Skitter's Butcher

54% of decks · $0.32

Tangled Colony

54% of decks · $0.76

Crypt Rats

53% of decks · $0.58

Burglar Rat

50% of decks · $0.31

Voracious Vermin

48% of decks · $0.32

Persistent Marshstalker

45% of decks · $0.28

Ashcoat of the Shadow Swarm

42% of decks · $38.50

Stronghold Rats

41% of decks · $0.59

Gnat Miser

41% of decks · $0.94

Ratcatcher

38% of decks · $11.68

Swarm of Rats

34% of decks · $3.22

Rat King, Verminister

34% of decks · $0.69

Wave of Rats

33% of decks · $3.17

Rat King, Pale Piper

32% of decks · $0.37

Pestilence Rats

31% of decks · $0.32

Chittering Witch

30% of decks · $0.34

Ink-Eyes, Servant of Oni

29% of decks · $13.18

Ruin Rat

27% of decks · $0.24

Nezumi Prowler

27% of decks · $0.65

Changeling Outcast

27% of decks · $2.38

Nezumi Informant

25% of decks · $0.36

Engine Rat

25% of decks · $0.30

Ravenous Rats

25% of decks · $0.61

Nashi, Moon Sage's Scion

24% of decks · $3.56

Gnawing Vermin

22% of decks · $0.28

Valley Rotcaller

22% of decks · $1.97

Drainpipe Vermin

22% of decks · $0.39

Ayara, First of Locthwain

21% of decks · $8.55

Twisted Sewer-Witch

20% of decks · $0.31

Undercity Dire Rat

19% of decks · $0.15

Relentless Rats

19% of decks · $3.98

Old Flitterfang

19% of decks · $0.51

Throat Slitter

19% of decks · $3.80

Locust Miser

18% of decks · $3.73

Species Specialist

17% of decks · $10.42

Gray Merchant of Asphodel

16% of decks · $3.90

Crypt Ghast

15% of decks · $18.07

Innocuous Rat

15% of decks · $0.22

Mukotai Ambusher

14% of decks · $0.19

Rotting Rats

13% of decks · $1.59

Nezumi Graverobber

13% of decks

Refurbished Familiar

12% of decks · $0.32

Nezumi Bladeblesser

12% of decks · $0.26

Daggerfang Duo

10% of decks · $0.15

Skullsnatcher

10% of decks · $1.31

Chittering Rats

10% of decks · $0.29

Okiba-Gang Shinobi

9% of decks · $1.18

Thornplate Intimidator

9% of decks · $0.09

Instants (30)

Dark Ritual

57% of decks · $7.19

Whisper of the Dross

46% of decks · $0.30

Village Rites

39% of decks · $0.99

Defile

34% of decks · $1.32

Grim Affliction

29% of decks · $0.32

Go for the Throat

28% of decks · $0.62

Rat Out

26% of decks · $0.39

Deadly Dispute

21% of decks · $0.26

Corrupted Conviction

20% of decks · $0.35

Tainted Strike

19% of decks · $3.26

Murder

18% of decks · $0.18

Infernal Grasp

17% of decks · $0.33

Vampiric Tutor

16% of decks · $54.45

Tragic Slip

15% of decks · $0.26

Deadly Rollick

15% of decks · $28.68

Withering Torment

14% of decks · $1.58

Foul-Tongue Shriek

12% of decks · $0.19

Consuming Corruption

10% of decks · $0.26

Malakir Rebirth

10% of decks

Hero's Downfall

9% of decks · $0.33

Virulent Wound

9% of decks · $0.24

Raise the Draugr

9% of decks · $0.30

Doom Blade

8% of decks · $0.24

Gravepurge

8% of decks · $0.17

Fell the Profane

8% of decks

Culling the Weak

7% of decks · $8.04

Cabal Ritual

6% of decks

Offer Immortality

6% of decks · $0.23

Sudden Spoiling

6% of decks · $6.86

Altar's Reap

5% of decks · $0.39

Sorceries (35)

Drown in Ichor

54% of decks · $0.79

Revenge of the Rats

40% of decks · $0.38

Phyresis Outbreak

39% of decks · $12.61

Feed the Swarm

37% of decks · $0.24

Crippling Fear

31% of decks · $3.42

29% of decks · $2.74

Patriarch's Bidding

28% of decks · $3.70

Kindred Dominance

26% of decks · $4.94

Vat Emergence

25% of decks · $0.32

Demonic Tutor

22% of decks · $69.17

Swarmyard Massacre

19% of decks · $4.54

Bloodline Bidding

19% of decks · $2.93

Night's Whisper

17% of decks · $6.25

Read the Bones

14% of decks · $0.29

Diabolic Tutor

14% of decks · $2.21

Feed the Infection

13% of decks · $0.25

Victimize

12% of decks · $1.34

Toxic Deluge

12% of decks · $5.17

Echoing Return

12% of decks · $0.34

Plague of Vermin

11% of decks · $20.80

Damnation

11% of decks · $21.01

Unearth

11% of decks · $0.54

Diabolic Intent

11% of decks · $17.18

Reanimate

10% of decks · $10.11

Caress of Phyrexia

9% of decks · $0.28

Gruesome Fate

9% of decks · $1.15

Geth's Summons

8% of decks · $0.38

Lab Rats

8% of decks

Pact of the Serpent

7% of decks · $1.05

Mutilate

7% of decks · $2.15

Bubbling Muck

6% of decks · $4.87

Grim Tutor

6% of decks · $23.87

Fell

6% of decks · $0.36

Forever Young

6% of decks · $0.14

Return from Extinction

5% of decks · $0.29

Utility Artifacts (25)

Bontu's Monument

52% of decks · $4.60

Jet Medallion

52% of decks · $14.56

Herald's Horn

44% of decks · $5.82

Skullclamp

34% of decks · $5.21

Vanquisher's Banner

30% of decks · $5.55

Contagion Clasp

28% of decks · $0.36

Thrumming Stone

22% of decks · $21.81

Swiftfoot Boots

18% of decks

Lightning Greaves

16% of decks · $4.00

Bolas's Citadel

15% of decks · $16.17

Contagion Engine

15% of decks · $14.32

Coat of Arms

14% of decks · $19.25

Door of Destinies

12% of decks · $2.49

Chronicle of Victory

12% of decks · $21.97

Banner of Kinship

12% of decks · $7.39

Whip of Erebos

12% of decks · $9.52

Icon of Ancestry

11% of decks · $0.36

The Darkness Crystal

10% of decks · $4.03

Ashnod's Altar

8% of decks · $16.88

Eldrazi Monument

7% of decks · $10.65

Thornbite Staff

7% of decks · $21.63

Grafted Exoskeleton

7% of decks

Wayfarer's Bauble

7% of decks · $5.61

Gathering Stone

6% of decks · $0.47

Sword of the Squeak

5% of decks · $1.13

Mana Artifacts (13)

Sol Ring

78% of decks · $1.38

Arcane Signet

49% of decks · $0.49

Glistening Sphere

29% of decks · $13.19

Patchwork Banner

24% of decks · $2.79

Charcoal Diamond

21% of decks · $0.35

Mind Stone

16% of decks

Staff of Compleation

15% of decks · $3.97

Heraldic Banner

14% of decks · $0.33

Phyrexian Atlas

10% of decks · $0.23

Thought Vessel

10% of decks

Caged Sun

8% of decks · $3.87

Commander's Sphere

7% of decks · $0.34

The Soul Stone

7% of decks · $84.20

Enchantments (17)

Necrogen Communion

35% of decks · $0.34

Phyrexian Arena

35% of decks · $4.26

Cover of Darkness

35% of decks · $21.67

Bad Moon

20% of decks · $4.20

Phyresis

18% of decks · $2.39

Oversold Cemetery

17% of decks · $2.60

Grave Pact

17% of decks · $30.52

Haunted One

16% of decks · $5.55

Black Market

15% of decks · $6.40

Black Market Connections

14% of decks · $10.47

Tribute to Horobi

12% of decks

Vampiric Rites

9% of decks · $0.17

Lord Skitter's Blessing

7% of decks · $0.36

Dictate of Erebos

7% of decks · $17.52

Intimidation

6% of decks · $0.90

Phyrexian Reclamation

6% of decks · $2.86

The Meathook Massacre

6% of decks · $24.67

Planeswalkers (2)

Vraska, Betrayal's Sting

29% of decks · $2.47

Liliana of the Dark Realms

9% of decks · $9.30

Utility Lands (23)

Swarmyard

55% of decks

Karn's Bastion

43% of decks

Bojuka Bog

41% of decks

Cabal Coffers

40% of decks

Rogue's Passage

36% of decks

Mudflat Village

34% of decks

Witch's Cottage

26% of decks

Cabal Stronghold

24% of decks

Urborg, Tomb of Yawgmoth

23% of decks

Mortuary Mire

22% of decks

Reliquary Tower

21% of decks

Nykthos, Shrine to Nyx

19% of decks

Three Tree City

19% of decks

Phyrexian Tower

15% of decks

Access Tunnel

14% of decks

Castle Locthwain

11% of decks

Crypt of Agadeem

11% of decks

War Room

9% of decks

Barren Moor

8% of decks

Secret Tunnel

8% of decks

Shizo, Death's Storehouse

8% of decks

Temple of the False God

7% of decks

Takenuma, Abandoned Mire

7% of decks

Lands (10)

Swamp

98% of decks

Path of Ancestry

31% of decks

Myriad Landscape

17% of decks

Cavern of Souls

14% of decks

Big Apple, 3 a.m.

12% of decks

Malakir Rebirth

10% of decks

Command Tower

10% of decks

Fell the Profane

8% of decks

Evolving Wilds

6% of decks

Escape Tunnel

5% of decks

Play-rate data via EDHREC. Card images and prices via Scryfall.

Public Decks with Karumonix, the Rat King

54 Creatures, 34 Lands, 3 Sorceries, 3 Artifacts, 5 Enchantments

2026-10-08

View decklist ↗$526.00

37 Creatures, 36 Lands, 10 Instants, 8 Sorceries, 5 Artifacts, 3 Enchantments

2026-10-08

View decklist ↗$106.00

30 Creatures, 36 Lands, 13 Instants, 11 Sorceries, 5 Artifacts, 3 Enchantments, 1 Planeswalkers

2026-10-08

View decklist ↗$111.00

50 Creatures, 40 Lands, 2 Sorceries, 6 Artifacts, 1 Planeswalkers

2026-10-08

View decklist ↗$351.00

20 Creatures, 34 Lands, 10 Instants, 10 Sorceries, 17 Artifacts, 8 Enchantments

2026-10-08

View decklist ↗$1243.00

44 Creatures, 35 Lands, 3 Instants, 7 Sorceries, 7 Artifacts, 2 Enchantments, 1 Planeswalkers

2026-10-07

View decklist ↗$777.00

38 Creatures, 34 Lands, 6 Instants, 10 Sorceries, 7 Artifacts, 4 Enchantments

2026-10-07

View decklist ↗$177.00

31 Creatures, 37 Lands, 5 Instants, 9 Sorceries, 15 Artifacts, 2 Enchantments

2026-10-07

View decklist ↗$214.00

28 Creatures, 36 Lands, 13 Instants, 9 Sorceries, 9 Artifacts, 3 Enchantments, 1 Planeswalkers

2026-10-07

View decklist ↗$252.00

31 Creatures, 37 Lands, 5 Instants, 9 Sorceries, 15 Artifacts, 2 Enchantments

2026-10-07

View decklist ↗$221.00

46 Creatures, 35 Lands, 4 Instants, 5 Sorceries, 8 Artifacts, 1 Enchantments

2026-10-07

View decklist ↗$580.00

28 Creatures, 36 Lands, 6 Instants, 3 Sorceries, 14 Artifacts, 10 Enchantments, 2 Planeswalkers

2026-10-07

View decklist ↗$301.00

41 Creatures, 34 Lands, 5 Instants, 5 Sorceries, 11 Artifacts, 2 Enchantments, 1 Planeswalkers

2026-10-07

View decklist ↗$642.00

27 Creatures, 36 Lands, 10 Instants, 10 Sorceries, 11 Artifacts, 5 Enchantments

2026-10-07

View decklist ↗$495.00

35 Creatures, 34 Lands, 10 Instants, 8 Sorceries, 8 Artifacts, 4 Enchantments

2026-10-07

View decklist ↗$71.00

29 Creatures, 35 Lands, 9 Instants, 13 Sorceries, 6 Artifacts, 6 Enchantments, 1 Planeswalkers

2026-10-07

View decklist ↗$477.00

49 Creatures, 39 Lands, 3 Instants, 5 Sorceries, 3 Artifacts

2026-10-07

View decklist ↗$595.00

34 Creatures, 34 Lands, 7 Instants, 9 Sorceries, 8 Artifacts, 7 Enchantments

2026-10-07

View decklist ↗$324.00

44 Creatures, 36 Lands, 1 Instants, 8 Sorceries, 5 Artifacts, 4 Enchantments, 1 Planeswalkers

2026-10-07

View decklist ↗$263.00

32 Creatures, 38 Lands, 9 Instants, 11 Sorceries, 7 Artifacts, 2 Enchantments

2026-10-07

View decklist ↗$40.00

24 Creatures, 38 Lands, 6 Instants, 12 Sorceries, 14 Artifacts, 3 Enchantments, 2 Planeswalkers

2026-10-07

View decklist ↗$117.00

30 Creatures, 35 Lands, 10 Instants, 10 Sorceries, 8 Artifacts, 4 Enchantments, 2 Planeswalkers

2026-10-07

View decklist ↗$406.00

33 Creatures, 36 Lands, 11 Instants, 4 Sorceries, 7 Artifacts, 8 Enchantments

2026-10-07

View decklist ↗$250.00

34 Creatures, 40 Lands, 9 Instants, 7 Sorceries, 3 Artifacts, 5 Enchantments, 1 Planeswalkers

2026-10-07

View decklist ↗$185.00

Real decks submitted by their original builders on Moxfield, Archidekt, and other deck sites — click through to credit and see the full list.

Decks built with Karumonix, the Rat King on Mana Forge (0)

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