Karumonix, the Rat King
Legendary Creature — Phyrexian Rat · Rare
Karumonix, the Rat King is currently worth about $0.62 for its most affordable printing, tracked daily across Scryfall, TCGplayer, and Card Kingdom.
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.
Format legality
Card facts
- Mana value
- 3
- Color identity
- B
- Type line
- Legendary Creature — Phyrexian Rat
- Keywords
- Toxic
- Rarity
- Rare
- First printed
- 2023
- Artist
- Flavio Girón
- P/T
- 3/3
Playability
#3293 most-played card on EDHREC — Commonly played
Popularity data from EDHREC
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Prices by printing
Latest tracked estimates. Updated daily.
| Set | No. | Rarity | Nonfoil | Foil |
|---|---|---|---|---|
| Phyrexia: All Will Be One | 439 | Rare | — | $14.69 |
| Phyrexia: All Will Be One Promos | 98s | Rare | — | $3.17 |
| Phyrexia: All Will Be One | 307 | Rare | $1.87 | $1.65 |
| Phyrexia: All Will Be One | 98 | Rare | $1.23 | $1.40 |
| Phyrexia: All Will Be One Promos | 98p | Rare | $1.17 | $1.24 |
| Phyrexia: All Will Be One | 282 | Rare | — | $0.62 |
Price intelligence
Phyrexia: All Will Be One #439 — every source we track. The spread between retailers is where the deals live.
All sources
| Source | foil | As of |
|---|---|---|
| Scryfall estimate | $14.69 | 2026-07-28 |
Price trend · 90 days
foil
$14.18 – $14.69 · Scryfall estimate
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Frequently asked
How much is Karumonix, the Rat King worth?
Karumonix, the Rat King is currently worth about $0.62 for its most affordable printing, based on live market estimates tracked daily on RareWell. Copies range from $0.62 to $14.69 across printings and finishes.
Which sets was Karumonix, the Rat King printed in?
Karumonix, the Rat King has been printed in 2 sets, including Phyrexia: All Will Be One, Phyrexia: All Will Be One Promos.
Can I buy Karumonix, the Rat King on RareWell?
No copies of Karumonix, the Rat King are listed right now, but collectors list cards daily — and if you own one, you can list it for sale or trade in minutes, free.
Is Karumonix, the Rat King legal in Commander?
Yes — Karumonix, the Rat King is legal in Commander (EDH).
Is Karumonix, the Rat King legal in Modern?
Yes — Karumonix, the Rat King is legal in Modern.
Is Karumonix, the Rat King on the Reserved List?
No — Karumonix, the Rat King is not on the Reserved List.
Printed in: Phyrexia: All Will Be One · Phyrexia: All Will Be One Promos
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