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Magic · Commander: Secrets of Strixhaven · #19 · Rare

Expansion Algorithm

Magic card price for Expansion Algorithm: $2.43 market, from $1.50 at the cheapest listing, Normal printing, updated Oct 18, 2026. Full price history since Apr 2, 2026 below.

Market price · Normal · Oct 18, 2026
$2.43
−0.4% this week · +16.3% in 30 days
Buy on eBay →
1 day−0.8%
7 days−0.4%
30 days+16.3%
90 days+9.5%
1 year—
All time−75.7%

Sellers right now

$1.50lowest listing$41.60highest
Market price$2.43
Mid listing$2.73
Direct$2.55
30-day avg$2.31

Market price is what a near-mint copy actually sold for. The cheapest listing is what a seller asks today — on thin markets the two differ a lot.

Where to buy

TCGplayer$2.43
Cardmarket$3.07 €2.73

EUR converted at 1.1253 (ECB reference rate). Shipping and condition not included.

One year

$1.8352-week low$12.9652-week high
In the range5%
All-time low$1.83
All-time high$12.96
First priceApr 2, 2026
Normal · market priceCardmarket (EU, in USD)
$1.17$5.47$9.77$14.07
$2.43
Apr 2Jun 7Aug 12Oct 18
TCGplayer · via tcgcsv · Cardmarket · via MTGJSONtcgrate.com

Price story

Expansion Algorithm came out in April 2026; we leave the first weeks out of this story, because early prices are set before real supply exists. Listings currently start at $1.50; over the last 30 days the market price averaged $2.31.

Printings

PrintingMarketLowHigh7d
Normal$2.43$1.50$41.60−0.4%

The card in play

Type line
Sorcery
Rules text

Proliferate X times. (To proliferate, choose any number of permanents and/or players, then give each another counter of each kind already there.)

Flavor

"When you find an equation that works, all that's left is finding its many applications."

—Zimone

Other printings of Expansion Algorithm

1 more · $2.43 – $2.62
All printings
Expansion Algorithm (Extended Art) (69), Commander: Secrets of Strixhaven — Magic card price +3.6% 7d Expansion Algorithm (Extended Art) Commander: Secrets of Strixhaven · #69 $2.62

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