Cheapest priced copy (Wilds of Eldraine): $0.35 at Card Kingdom, near mint, their price list as of .
Frantic Firebolt 
Instant · Common · Wilds of Eldraine · #130
Frantic Firebolt deals X damage to target creature, where X is 2 plus the number of cards in your graveyard that are instant cards, sorcery cards, and/or have an Adventure.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Wilds of Eldraine | 130 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 1 September 2023Frantic Firebolt isn't put into your graveyard until after it finishes resolving, so it doesn't count itself for its own effect.