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Karumonix, the Rat King — Phyrexia: All Will Be One Magic: The Gathering card
Magic: The Gathering · rareLive pricing

Karumonix, the Rat King

Declining-19.0%
Karumonix, the Rat King's Near Mint price is down 36.4% ($0.68) over the past 30 days.
Fresh· Updated Nov 2, 2026
Card Details
TypeLegendary Creature — Phyrexian Rat
Mana Cost1BB
P/T3/3
ArtistFlavio Girón
Card TextToxic 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.
Format Legality
ModernPioneerCommanderLegacyVintageHistoricBrawl
inkwell Fair Value™?· NM
$1.19
moderate
$0.64
$1.49
Condition?
6 printings — select edition
Confidencehigh
Prices as ofNov 2
Normal—
Cheapest printing$0.75
Set Price Alert

Recent Price Events

-35.9%$1.27 → $1.02Mar 18

The card likely saw decreased demand as Rat tribal strategies proved less competitive in current Standard/Pioneer formats, or rotation concerns affected its long-term playability.

-31.9%$1.35 → $1.07Mar 17

The Phyrexia: All Will Be One set continues to be opened heavily, increasing supply while tribal rat strategies remain niche in competitive play.

Why This Price

inkwell Estimate
Fair Value$1.19
Movement
7D Change-19.0% (-$0.28)
30D Change-36.4% (-$0.68)
Freshness
Prices as ofNov 2
Update cadenceDaily
Inkwell Fair Value$1.19NM · compare before you buy
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More from Phyrexia: All Will Be One

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6 Printings
How much is Karumonix, the Rat King worth?
The current Near Mint price for Karumonix, the Rat King from Phyrexia: All Will Be One (Magic: The Gathering) is $1.19. It has decreased 19.0% over the past 7 days.
What set is Karumonix, the Rat King from?
Karumonix, the Rat King is from the Phyrexia: All Will Be One set, released February 2023. It is a rare in Magic: The Gathering.
What rarity is Karumonix, the Rat King?
Karumonix, the Rat King is a rare card from Phyrexia: All Will Be One in Magic: The Gathering.
How has the price of Karumonix, the Rat King changed over the past 30 days?
Over the past 30 days, the Near Mint price of Karumonix, the Rat King has fallen 36.4% ($0.68) to $1.19.
How many printings of Karumonix, the Rat King exist?
Karumonix, the Rat King has 6 printings across different Magic: The Gathering sets. The cheapest printing is $0.75 from Phyrexia: All Will Be One.