Cheapest priced copy (Avatar: The Last Airbender): $0.35 at Card Kingdom, near mint, their price list as of .
Combustion Technique 
Instant — Lesson · Uncommon · Avatar: The Last Airbender · #301
Combustion Technique deals damage equal to 2 plus the number of Lesson cards in your graveyard to target creature. If that creature would die this turn, exile it instead.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
2 printings · $0.35 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Avatar: The Last Airbender | 128 | Uncommon | $0.35 | $0.49 |
| Avatar: The Last Airbender | 301 | Uncommon | $0.39 | $1.49 |
One ruling from Wizards of the Coast
- 2 October 2025Combustion Technique's replacement effect will exile the target creature if it would die this turn for any reason, not just due to lethal damage.