SOC #19
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Expansion Algorithm
SorceryProliferate
Nonfoil
TCGplayer market · SOC #19 nonfoil
$2.56 −2.7% −$0.07, 7 days
- 1-year range
- 30 days
- +3.2%
- EDHREC rank
- #5,559 Up 465 in 30 days
- Best buylist
Buy SOC #19 nonfoil
TCGplayer, $2.56 (opens in a new tab) Card Kingdom, (opens in a new tab) Mana Pool, (opens in a new tab) eBay, Check price (opens in a new tab)
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Expansion Algorithm Price Summary
The benchmark price (cheapest playable nonfoil) is $2.56, down 2.7% over 7 days, up 3.2% over 30 days, up 23.7% over 90 days.
Expansion Algorithm Price History
Markets TCGplayer marketreference
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TCGplayer market
Card Kingdom retail
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Mana Pool, lowest listing
Cardmarket trend
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Reprints in this period
Expansion Algorithm price history chart, default range 3 months. currently $2.56.
Where to Buy and Sell Expansion Algorithm
Every market we track for SOC #19 nonfoil on one line. The gray band is what you give up selling to a store instead of buying at market.
Expansion Algorithm in Sealed Products
Checking which sealed products hold SOC #19 nonfoil.
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Expansion Algorithm Printings & Prices
Expansion Algorithm has 2 tracked printings across 1 sets, in nonfoil finishes, including extended art treatments.
SOC #69
Sell Expansion Algorithm: Buylist Offers
| Buyer | Printing | Finish | Cash offer | Market | Spread to market |
|---|---|---|---|---|---|
| Card Kingdom | SOC #69 | Nonfoil | |||
| Card Kingdom | SOC #19 | Nonfoil | |||
| CoolStuffInc | SOC #19 | Nonfoil | |||
| CoolStuffInc | SOC #69 | Nonfoil |
Expansion Algorithm Rules Text & Legality
Expansion Algorithm
Proliferate X times. (To proliferate, choose any number of permanents and/or players, then give each another counter of each kind already there.)
"When you find an equation that works, all that's left is finding its many applications." —Zimone
Expansion Algorithm is legal in Legacy and Commander, and not legal in Standard, Pioneer, Modern and Pauper.
- CommanderLegal
- Duel CommanderLegal
- LegacyLegal
- OathbreakerLegal
- VintageLegal
- AlchemyNot legal
- BrawlNot legal
- Competitive BrawlNot legal
- Future StandardNot legal
- GladiatorNot legal
- HistoricNot legal
- ModernNot legal
- Old SchoolNot legal
- PauperNot legal
- Pauper CommanderNot legal
- Penny DreadfulNot legal
- PioneerNot legal
- PreDHNot legal
- PremodernNot legal
- StandardNot legal
- Standard BrawlNot legal
- TimelessNot legal
Expansion Algorithm Rulings
- Mar 20, 2026
If a player or permanent has more than one kind of counter on it, and you choose for it to get additional counters, it must get one of each kind of counter it already has. You can't have it get just one kind of counter it already has and not the others.
- Mar 20, 2026
If you proliferate multiple times, you don't have to choose the same set of players and/or permanents to get additional counters each time.
- Mar 20, 2026
Players can respond to a spell or ability whose effect includes proliferating. Once that spell or ability starts to resolve, however, and its controller chooses which permanents and players will get new counters, it's too late for anyone to respond.
- Mar 20, 2026
When you proliferate, you can choose any permanent that has a counter, including ones controlled by opponents. You can choose any player who has a counter, including opponents. You can't choose cards in any zone other than the battlefield, even if they have counters on them.
- Mar 20, 2026
While proliferating multiple times, players can't respond between proliferating the first time and proliferating the second time, and so on.
Reprints & Reprint Risk
Expansion Algorithm has been reprinted 2 times. The Secrets of Strixhaven Commander reprint cut the price 50% in 30 days.
- Apr 24, 2026Secrets of Strixhaven Commander · Extended ArtSOC #69
- Apr 24, 2026Secrets of Strixhaven CommanderSOC #19
Expansion Algorithm in Commander
Expansion Algorithm is the #5,559 most-played card on EDHREC, up 465 places over the last 30 days.
#5,559
EDHREC rank
across all Commander decks Up 465 in 30 days
across all Commander decks Up 465 in 30 days
Expansion Algorithm FAQ
How much is Expansion Algorithm worth?
Expansion Algorithm is worth about $2.56 for its cheapest playable printing as of Nov 8, 2026.
Is Expansion Algorithm legal in Commander?
Yes. Expansion Algorithm is legal in Commander. It is also legal in Legacy.
Has Expansion Algorithm been reprinted?
Yes. Expansion Algorithm has been reprinted 2 times, with 2 printings tracked on The Index.
Why is Expansion Algorithm cheap?
Expansion Algorithm trades at about $2.56; 2 reprints keep supply plentiful, and Commander demand is modest (#5,559 on EDHREC).