Magic

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Spontaneous Combustion Conspiracy MTG card
CNS #194 · Art by Jason Rainville
CNS set symbol, UncommonConspiracy#194Uncommon

Spontaneous Combustion

Instant
TCGplayer market · CNS #194 nonfoil
$0.10 +11.1% +$0.01, 7 days
1-year range
30 days
+25.0%
EDHREC rank
#24,145 Down 139 in 30 days
Best buylist

Buy CNS #194 nonfoil

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Spontaneous Combustion Price Summary

The benchmark price (cheapest playable nonfoil) is $0.10, up 11.1% over 7 days, up 25.0% over 30 days, down 64.3% over 90 days.

Spontaneous Combustion Price History

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Spontaneous Combustion price history chart, default range 3 months. currently $0.10.

Where to Buy and Sell Spontaneous Combustion

Every market we track for CNS #194 nonfoil on one line. The gray band is what you give up selling to a store instead of buying at market.

Spontaneous Combustion in Sealed Products

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Spontaneous Combustion Printings & Prices

Spontaneous Combustion has 2 tracked printings across 2 sets, in nonfoil and foil finishes.

CNS set symbol, UncommonCNS #194
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TMP set symbol, UncommonTMP #273

Sell Spontaneous Combustion: Buylist Offers

BuyerPrintingFinishCash offerMarketSpread to market
Card KingdomCNS #194Foil
Card KingdomCNS #194Nonfoil
Card KingdomTMP #273Nonfoil

Spontaneous Combustion Rules Text & Legality

Spontaneous Combustion

As an additional cost to cast this spell, sacrifice a creature.

Spontaneous Combustion deals 3 damage to each creature.

"Heat of battle" is usually a metaphor.

Spontaneous Combustion is legal in Legacy and Commander, and not legal in Standard, Pioneer, Modern and Pauper.

View on Scryfall ↗

Spontaneous Combustion Rulings

  • Apr 15, 2013

    Players can only respond once this spell has been cast and all its costs have been paid. No one can try to destroy the creature you sacrificed to prevent you from casting this spell.

  • Apr 15, 2013

    You must sacrifice exactly one creature to cast this spell; you cannot cast it without sacrificing a creature, and you cannot sacrifice additional creatures.

Reprints & Reprint Risk

Spontaneous Combustion has been reprinted 3 times.

  • Oct 14, 1997TMP set symbol, UncommonTempestTMP #273
  • Jun 6, 2014CNS set symbol, UncommonConspiracy · foilCNS #194
  • Jun 6, 2014CNS set symbol, UncommonConspiracyCNS #194

Spontaneous Combustion in Commander

Spontaneous Combustion is the #24,145 most-played card on EDHREC, down 139 places over the last 30 days.

#24,145 EDHREC rank
across all Commander decks Down 139 in 30 days

Spontaneous Combustion FAQ

How much is Spontaneous Combustion worth?

Spontaneous Combustion is worth about $0.10 for its cheapest playable printing as of Nov 8, 2026.

Is Spontaneous Combustion legal in Commander?

Yes. Spontaneous Combustion is legal in Commander. It is also legal in Legacy.

Has Spontaneous Combustion been reprinted?

Yes. Spontaneous Combustion has been reprinted 3 times, with 2 printings tracked on The Index.

Why is Spontaneous Combustion cheap?

Spontaneous Combustion trades at about $0.10; 3 reprints keep supply plentiful, and Commander demand is modest (#24,145 on EDHREC).