Expansion Algorithm #19 – Commander: Secrets of Strixhaven (Rare)

Magic: The Gathering · Commander: Secrets of Strixhaven · Rare

Expansion Algorithm #19 Price

Expansion Algorithm (#19, Rare) from Commander: Secrets of Strixhaven is worth $2.21 in Near Mint condition on TCGplayer as of October 3, 2026. On Cardmarket, Europe's main marketplace, the Normal sells for €2.85.

Near Mint · TCGplayer: $2.21
Near Mint · Cardmarket: €2.85
30-day change: +16.3%
Printings: 1

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Expansion Algorithm prices by printing

Near Mint market prices, updated October 4, 2026.

Printing	TCGplayer (USD)	Cardmarket (EUR)
Normal	$2.21	€2.85

TCGplayer market price and Cardmarket price for Near Mint English copies. They are two separate markets, so the euro figure is Cardmarket's own price, not a conversion of the dollar one. Source: TCGplayer, Cardmarket.

Card details

Set: Commander: Secrets of Strixhaven
Card number: 19
Rarity: Rare
Released: April 24, 2026
Illustrator: Serena Malyon
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 text: "When you find an equation that works, all that's left is finding its many applications."
—Zimone

Expansion Algorithm: common questions

How much is Expansion Algorithm #19 worth?

Expansion Algorithm (#19, Rare) from Commander: Secrets of Strixhaven is worth $2.21 in Near Mint condition on TCGplayer as of October 3, 2026. On Cardmarket, Europe's main marketplace, the Normal sells for €2.85.

What set is Expansion Algorithm from?

Expansion Algorithm is card 19 in Commander: Secrets of Strixhaven, released April 24, 2026. Its rarity is Rare. Illustrated by Serena Malyon.

Is Expansion Algorithm going up in price?

Over the last 30 days the Near Mint Normal price on TCGplayer moved from $1.90 (September 5, 2026) to $2.21 (October 3, 2026), a change of +16.3%. The 30-day low was $1.90 and the high $2.32.

How do I check what my Expansion Algorithm is worth?

Scan it with the TCG Vault app on iPhone: it identifies the card from the camera in seconds and shows its current market price and price history, then keeps it in your collection so you can follow its value.