Karumonix, the Rat King: Rat Colony
$1.38
$1.38Legendary Creature — Phyrexian Rat
High Synergy Cards
The highest-synergy picks for Karumonix, the Rat King's Rat Colony builds — cards that lean hardest into the Rat Colony theme.
Rat Colony+94% Synergy
$6.97
Marrow-Gnawer+78% Synergy
$27.22
Piper of the Swarm+77% Synergy
$2.35
Pack Rat+72% Synergy
$2.82
Blightbelly Rat+70% Synergy
$0.34
Ogre Slumlord+66% Synergy
$0.39
Ichor Rats+64% Synergy
$2.27
Lord Skitter, Sewer King+61% Synergy
$5.06
Infectious Inquiry+56% Synergy
$0.37
Vraska's Fall+54% Synergy
$0.36
Top Cards
The staple cards most Karumonix, the Rat King Rat Colony decks run as their core.
Lord Skitter's Butcher+49% Synergy
$0.34
Crypt Rats+48% Synergy
$0.43
Typhoid Rats+48% Synergy
$0.27
Herald's Horn+47% Synergy
$4.72
Drown in Ichor+47% Synergy
$0.99
Ashcoat of the Shadow Swarm+46% Synergy
$55.34
Tangled Colony+46% Synergy
$0.52
Bontu's Monument+35% Synergy
$5.36
Jet Medallion+3% Synergy
$10.47
Dark Ritual-4% Synergy
$4.19
Game Changers
High-impact bombs that can take over a Karumonix, the Rat King Rat Colony game on their own.
Demonic Tutor+6% Synergy
$70.03
Vampiric Tutor+4% Synergy
$62.01
Bolas's Citadel-8% Synergy
$17.35
Necropotence-9% Synergy
$37.03
Creatures
Creatures that carry the Rat Colony plan in Karumonix, the Rat King decks, from early pressure to payoff.
Septic Rats+46% Synergy
$0.46
Rancid Rats+45% Synergy
$0.34
Ratcatcher+43% Synergy
$13.86
Voracious Vermin+41% Synergy
$0.30
Rat King, Verminister+37% Synergy
$0.46
Persistent Marshstalker+35% Synergy
$0.31
Gnat Miser+35% Synergy
$0.76
Swarm of Rats+35% Synergy
$2.04
Wave of Rats+33% Synergy
$2.76
Burglar Rat+32% Synergy
$0.25
Stronghold Rats+32% Synergy
$1.04
Rat King, Pale Piper+28% Synergy
$0.32
Chittering Skitterling+28% Synergy
$0.17
Ink-Eyes, Servant of Oni+28% Synergy
$13.33
Pestilence Rats+25% Synergy
$0.34
Old Flitterfang+24% Synergy
$0.34
Nashi, Moon Sage's Scion+23% Synergy
$3.69
Species Specialist+23% Synergy
$11.68
Ruthless Radrat+23% Synergy
$0.32
Chittering Witch+20% Synergy
$0.28
Nezumi Informant+19% Synergy
$0.39
Innocuous Rat+19% Synergy
$0.20
Valley Rotcaller+18% Synergy
$2.34
Nezumi Prowler+18% Synergy
$0.31
Ruin Rat+18% Synergy
$0.23
Changeling Outcast+17% Synergy
$2.20
Ravenous Rats+16% Synergy
$0.51
Locust Miser+16% Synergy
$4.88
Gnawing Vermin+16% Synergy
$0.28
Throat Slitter+15% Synergy
$4.37
Twisted Sewer-Witch+15% Synergy
$0.28
Daggerfang Duo+14% Synergy
$0.20
Relentless Rats+12% Synergy
$5.45
Drainpipe Vermin+12% Synergy
$0.13
Razortooth Rats+12% Synergy
$0.13
Nezumi Cutthroat+12% Synergy
$0.09
Rotting Rats+9% Synergy
$1.30
Mukotai Ambusher+9% Synergy
$0.25
Roaming Throne+8% Synergy
$52.17
Engine Rat+8% Synergy
$0.29
Refurbished Familiar+8% Synergy
$0.29
Elephant-Rat+8% Synergy
$0.10
Okiba-Gang Shinobi+7% Synergy
$1.44
Nezumi Bladeblesser+7% Synergy
$0.10
Nezumi Graverobber+6% Synergy
$0.55
Undercity Dire Rat+6% Synergy
$0.21
Ayara, First of Locthwain+1% Synergy
$9.63
Yawgmoth, Thran Physician-1% Synergy
$37.59
Crypt Ghast-28% Synergy
$17.79
Gray Merchant of Asphodel-32% Synergy
$4.18
Instants
Instant-speed interaction and tricks that keep Karumonix, the Rat King's Rat Colony deck ahead.
Whisper of the Dross+38% Synergy
$0.32
Rat Out+20% Synergy
$0.26
Grim Affliction+15% Synergy
$0.40
Village Rites+12% Synergy
$0.74
Foul-Tongue Shriek+11% Synergy
$0.24
Unbury+11% Synergy
$0.22
Go for the Throat+9% Synergy
$0.61
Tainted Strike+9% Synergy
$3.37
Gravepurge+8% Synergy
$0.30
Corrupted Conviction+7% Synergy
$0.30
Anoint with Affliction+7% Synergy
$0.22
Raise the Draugr+6% Synergy
$0.27
Murder+5% Synergy
$0.12
Death Denied+5% Synergy
$0.24
Zuko's Conviction+4% Synergy
$0.21
Defile+3% Synergy
$1.37
Doom Blade+2% Synergy
$0.29
Hero's Downfall+2% Synergy
$0.26
Bitter Triumph0% Synergy
$1.28
Sudden Spoiling-2% Synergy
$7.76
Baleful Mastery-3% Synergy
$4.03
Consuming Corruption-5% Synergy
$0.32
Deadly Rollick-7% Synergy
$26.21
Tragic Slip-7% Synergy
$0.28
Infernal Grasp-8% Synergy
$0.28
Deadly Dispute-10% Synergy
$0.38
Cabal Ritual-11% Synergy
$15.78
Culling the Weak-11% Synergy
$14.73
Fell the Profane-12% Synergy
$3.00
Withering Torment-14% Synergy
$3.27
Malakir Rebirth-15% Synergy
$12.67
Sorceries
Sorceries that push the Rat Colony game plan forward for Karumonix, the Rat King.
Phyresis Outbreak+45% Synergy
$14.27
Patriarch's Bidding+33% Synergy
$5.14
Revenge of the Rats+31% Synergy
$0.37
Crippling Fear+27% Synergy
$2.44
Kindred Dominance+26% Synergy
$16.88
Swarmyard Massacre+26% Synergy
$2.79
Echoing Return+19% Synergy
$0.23
Vat Emergence+15% Synergy
$0.29
Bloodline Bidding+13% Synergy
$2.70
Plague of Vermin+13% Synergy
$25.34
Spread the Sickness+12% Synergy
$0.13
Gruesome Fate+8% Synergy
$1.11
Pact of the Serpent+7% Synergy
$0.70
Lab Rats+7% Synergy
$1.27
Caress of Phyrexia+7% Synergy
$0.33
Feed the Infection+6% Synergy
$0.23
Haunting Voyage+5% Synergy
$0.34
Secret Salvage+4% Synergy
$0.40
Forever Young+4% Synergy
$0.16
In Garruk's Wake+2% Synergy
$2.36
Unearth+1% Synergy
$0.48
Diabolic Intent0% Synergy
$16.10
Diabolic Tutor0% Synergy
$2.09
Insatiable Avarice-2% Synergy
$5.63
Grim Tutor-3% Synergy
$23.87
Damnation-4% Synergy
$21.38
Read the Bones-4% Synergy
$0.31
Living Death-5% Synergy
$2.19
Sign in Blood-8% Synergy
$2.85
Night's Whisper-8% Synergy
$0.31
Mutilate-8% Synergy
$1.97
Blasphemous Edict-10% Synergy
$4.22
Bubbling Muck-10% Synergy
$2.59
Feed the Swarm-14% Synergy
$0.33
Victimize-20% Synergy
$2.02
Toxic Deluge-24% Synergy
$4.98
Reanimate-30% Synergy
$8.59
Utility Artifacts
Artifacts that add consistency and utility to Karumonix, the Rat King Rat Colony decks.
Vanquisher's Banner+33% Synergy
$3.81
Thrumming Stone+28% Synergy
$21.84
Skullclamp+24% Synergy
$6.62
Banner of Kinship+20% Synergy
$5.68
Contagion Clasp+16% Synergy
$0.37
Coat of Arms+15% Synergy
$17.99
Chronicle of Victory+15% Synergy
$19.63
Door of Destinies+14% Synergy
$10.94
Contagion Engine+10% Synergy
$16.73
Icon of Ancestry+7% Synergy
$0.32
Eldrazi Monument+6% Synergy
$7.56
Sword of the Squeak+5% Synergy
$0.35
Whip of Erebos+4% Synergy
$6.79
Thornbite Staff+4% Synergy
$19.92
Gathering Stone+4% Synergy
$0.60
Wayfarer's Bauble-10% Synergy
$0.32
Ashnod's Altar-12% Synergy
$15.31
The Darkness Crystal-12% Synergy
$4.97
Swiftfoot Boots-13% Synergy
$2.99
Lightning Greaves-16% Synergy
$3.93
Enchantments
Enchantments that reinforce the Rat Colony strategy in Karumonix, the Rat King decks.
Cover of Darkness+26% Synergy
$18.09
Necrogen Communion+25% Synergy
$0.33
Haunted One+23% Synergy
$5.99
Bad Moon+22% Synergy
$1.72
Oversold Cemetery+12% Synergy
$2.58
Phyresis+9% Synergy
$3.18
Tribute to Horobi+7% Synergy
$0.26
Lord Skitter's Blessing+7% Synergy
$0.41
Vampiric Rites+3% Synergy
$0.17
Dark Prophecy+3% Synergy
$6.30
Phyrexian Reclamation0% Synergy
$2.52
Grave Pact-1% Synergy
$29.50
Phyrexian Arena-2% Synergy
$4.02
Dictate of Erebos-2% Synergy
$18.56
Black Market-5% Synergy
$5.25
Black Market Connections-8% Synergy
$18.31
The Meathook Massacre-10% Synergy
$24.87
Planeswalkers
Planeswalkers that back up Karumonix, the Rat King's Rat Colony game plan.
Vraska, Betrayal's Sting+24% Synergy
$0.97
Liliana of the Dark Realms-3% Synergy
$11.60
Utility Lands
Non-basic lands that pull extra weight in Karumonix, the Rat King Rat Colony decks.
Swarmyard+54% Synergy
$4.74
Karn's Bastion+39% Synergy
$2.16
Mudflat Village+28% Synergy
$0.33
Three Tree City+18% Synergy
$24.13
Rogue's Passage+11% Synergy
$0.36
Access Tunnel+7% Synergy
$0.38
Mortuary Mire+6% Synergy
$0.35
Secret Tunnel+4% Synergy
$2.74
Witch's Cottage+3% Synergy
$1.00
Minas Morgul, Dark Fortress+3% Synergy
$17.43
Temple of the False God+1% Synergy
$0.32
Susur Secundi, Void Altar+1% Synergy
$5.05
Cabal Stronghold0% Synergy
$13.47
Crypt of Agadeem0% Synergy
$1.85
Shizo, Death's Storehouse0% Synergy
$38.10
Bojuka Bog-2% Synergy
$0.63
Reliquary Tower-3% Synergy
$2.76
Nykthos, Shrine to Nyx-4% Synergy
$49.84
Barren Moor-4% Synergy
$0.37
Castle Locthwain-5% Synergy
$4.00
War Room-5% Synergy
$1.99
Cabal Coffers-7% Synergy
$29.69
Phyrexian Tower-9% Synergy
$26.16
Takenuma, Abandoned Mire-10% Synergy
$11.57
Urborg, Tomb of Yawgmoth-13% Synergy
$57.13
Mana Artifacts
Mana rocks and fixing to power out Karumonix, the Rat King's Rat Colony strategy.
Glistening Sphere+33% Synergy
$14.80
Patchwork Banner+24% Synergy
$1.91
White Lotus Tile+14% Synergy
$4.30
Staff of Compleation+11% Synergy
$4.17
Firdoch Core+6% Synergy
$0.28
Heraldic Banner+5% Synergy
$0.33
Phyrexian Atlas+5% Synergy
$0.25
Gauntlet of Power+4% Synergy
$3.70
Caged Sun-1% Synergy
$3.83
Commander's Sphere-1% Synergy
$0.25
Nyx Lotus-1% Synergy
$6.16
Throne of Eldraine-4% Synergy
$36.37
Charcoal Diamond-6% Synergy
$0.32
Sol Ring-7% Synergy
$1.40
Arcane Signet-12% Synergy
$0.46
Mind Stone-15% Synergy
$0.34
Thought Vessel-15% Synergy
$2.60
Lands
The mana base behind Karumonix, the Rat King's Rat Colony decks.
Path of Ancestry+23% Synergy
$0.32
Big Apple, 3 a.m.+15% Synergy
$0.39
Cavern of Souls+13% Synergy
$49.78
Command Tower+7% Synergy
$0.25
Escape Tunnel+5% Synergy
$0.24
Evolving Wilds+2% Synergy
$0.39
Swamp+1% Synergy
$0.07
Myriad Landscape-7% Synergy
$0.24
Fell the Profane-12% Synergy
$3.00
Malakir Rebirth-15% Synergy
$12.67
Similar Commanders
The following Commanders share a similar playing style, strategy, or theme like Karumonix, the Rat King: Rat Colony.
Wick, the Whorled Mind
Marrow-Gnawer
Ashcoat of the Shadow Swarm
Lord Skitter, Sewer King
Vren, the Relentless
Ink-Eyes, Servant of Oni
Patron of the Nezumi
Kinzu of the Bleak Coven
Xun Yu, Wei Advisor
Ob Nixilis, the Fallen
Totentanz, Swarm Piper
He Who Hungers
Shauku, Endbringer
The Meep
Massacre Girl
Zenos yae Galvus
Greel, Mind Raker
Kokusho, the Evening Star
The Haunt of Hightower
Infernal Kirin
Ob Nixilis, Unshackled
Shirei, Shizo's Caretaker
Drivnod, Carnage Dominus
Gríma Wormtongue
Hancock, Ghoulish Mayor
Kyoki, Sanity's Eclipse
Tourach, Dread Cantor
Trazyn the Infinite
Witch-king of Angmar
Jaheira, Friend of the Forest // Agent of the Shadow Thieves
Gonti, Lord of Luxury
Rev, Tithe Extractor
Zodiark, Umbral God
Gix, Yawgmoth Praetor
Lobelia, Defender of Bag End
Massacre Girl, Known Killer
Nashi, Moon's Legacy
Starscream, Power Hungry
Sengir, the Dark Baron // Siani, Eye of the Storm
Jecht, Reluctant Guardian