Cheapest priced copy (Teenage Mutant Ninja Turtles Eternal): $0.49 at Card Kingdom, near mint, their price list as of .
Swift Demise 
Instant · Rare · Teenage Mutant Ninja Turtles Eternal · #21
Swift Demise deals 1 damage to target creature. Then destroy each creature you don't control that was dealt damage this turn.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.49 to $1.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Teenage Mutant Ninja Turtles Eternal | 21 | Rare | $0.49 | $1.99 |