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As an additional cost to cast this spell, sacrifice a creature. Spontaneous Combustion deals 3 damage to each creature.
Abilities, attacks, weakness & resistance
Other cards from Conspiracy
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Spontaneous Combustion (CNS 194) is an uncommon black-red instant from the Conspiracy expansion. As an additional cost to cast it you must sacrifice a creature, and when it resolves it deals 3 damage to each creature. The card functions as a board‑sweep option that trades one creature for wide creature damage in decks that can pay its {1}{B}{R} cost.
Catalog pricing data as of 1 May 2026, 07:11
