Cheapest priced copy (Avacyn Restored): $0.35 at Card Kingdom, near mint, their price list as of .
Thunderbolt 
Instant · Common · Weatherlight · #115
Choose one —
• Thunderbolt deals 3 damage to target player or planeswalker.
• Thunderbolt deals 4 damage to target creature with flying.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
4 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Avacyn Restored | 159 | Common | $0.35 | $0.49 |
| Beatdown Box Set | 48 | Common | $0.35 | — |
| Premium Deck Series: Fire and Lightning | 19 | Common | — | $0.49 |
| Weatherlight | 115 | Common | $0.35 | — |