Spontaneous Combustion
Instant
CNSConspiracy#194uncommon
Foil
"Heat of battle" is usually a metaphor.
- Border
- black
- Frame
- 2003
- Pull rate
- ~1 in 20–1067
- Illustrator
- Jason Rainville
- Found in
- Conspiracy Booster Pack
CommanderLegalModernNot legalStandardNot legal
Format legality
AlchemyNot legal
BrawlNot legal
CommanderLegal
Competitive BrawlNot legal
DuelLegal
Future StandardNot legal
GladiatorNot legal
HistoricNot legal
LegacyLegal
ModernNot legal
OathbreakerLegal
Old SchoolNot legal
PauperNot legal
Pauper CommanderNot legal
PennyNot legal
PioneerNot legal
PreDHLegal
PremodernLegal
StandardNot legal
Standard BrawlNot legal
TimelessNot legal
Tiny LeadersLegal
VintageLegal
As an additional cost to cast this spell, sacrifice a creature.
Spontaneous Combustion deals 3 damage to each creature.
Plays as: Board Wipe
Market · per finishspark updated 5h ago · prices as of 2026-07-12
Nonfoil-6.2%
$0.15
$0.05 low$0.04 gap
Foil-1.9%
$0.51
$0.25 low$0.17 gap
Finish
Market
Δ 7D · Trend
Low
Buylist
Buy / Sell Gap
Nonfoil
$0.15as of 2026-07-12
-6.2%
H $0.24L $0.07since Feb 2024$0.05
$0.01
$0.04+80% · normal spread
VenuesHide venues
Low: tcgplayer
Buylist: cardkingdom
Foil
$0.51as of 2026-07-12
-1.9%
H $0.69L $0.30since Feb 2024$0.25
$0.08
$0.17+68% · normal spread
VenuesHide venues
Low: tcgplayer
Buylist: cardkingdom
Cheapest playable copy$0.15· across 2 printings
Rulings
2 · latest Apr 15, 2013 · one tap opens all
- WotCApr 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.
- WotCApr 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.