Karumonix, the Rat King

Phyrexia: All Will Be One (2023), Magic: The Gathering, #439, Rare, art by Flavio Girón. TCGplayer product name: Karumonix, the Rat King (Showcase) (Step-and-Compleat Foil)

Printing: Foil, Near Mint

$13.87

TCGplayer market price (an average of recent sales)

As of Oct 24 (4 days ago).

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Price trend

Oct 17 $14.37 → Oct 24, 2026 $13.87 −3.5%

$14.37$14.00$14.20$13.87

Oct 17, 2026Oct 19, 2026Oct 20, 2026Oct 21, 2026Oct 24, 2026

Sep 24 $14.82 → Oct 24, 2026 $13.87 −6.4%

$14.82$14.00$14.20$14.40$13.87

Sep 24, 2026Oct 4, 2026Oct 9, 2026Oct 14, 2026Oct 24, 2026

Jul 26 $14.69 → Oct 24, 2026 $13.87 −5.6%

$15.38$14.50$15.00$13.87

Jul 26, 2026Aug 25, 2026Sep 9, 2026Sep 24, 2026Oct 24, 2026

Oct 24, 2025 $7.07 → Oct 24, 2026 $13.87 +96.2%

$15.38$6.51$8.00$10.00$12.00$13.87

Oct 24, 2025Feb 22, 2026Apr 24, 2026Jun 24, 2026Oct 24, 2026

Feb 8, 2024 $3.00 → Oct 24, 2026 $13.87 +362%

$15.38$2.84$5.00$10.00$13.87

Feb 8, 2024Jan 2, 2025Jun 16, 2025Nov 28, 2025Oct 24, 2026

Vs its set

Over the 90 days to Oct 24, 2026: this card −5.6%; the median other card in Phyrexia: All Will Be One +5.5% (478 other cards, each at its tracked printing).

Market details

Sold vs asking

Recent sales (TCGplayer market price)$13.87

Sellers asking (median listing)$14.20

0$14.20

Sellers ask about the same as the recent sale price.

Asking figure from TCGplayer listings, as of Oct 24.

Record

Price history Feb 8, 2024 to Oct 24, 2026

Highest$15.38Sep 5, 2026 only

Lowest$2.84Mar 17, 2024 only

Vs highest10% below $15.38

Price changes, last 30 days

Date	Price	Change
Oct 16	$14.33 → $14.28	−0.3%	Show on chart
Oct 17	$14.28 → $14.37	+0.6%	Show on chart
Oct 18	$14.37 → $14.24	−0.9%	Show on chart
Oct 19	$14.24 → $14.04	−1.4%	Show on chart
Oct 21	$14.04 → $13.92	−0.9%	Show on chart
Oct 24	$13.92 → $13.87	−0.4%	Show on chart