Cheapest priced copy (Streets of New Capenna): $0.35 at Card Kingdom, near mint, their price list as of .
Brokers Charm 
Instant · Uncommon · Streets of New Capenna · #171
Choose one —
• Target creature you control gets +1/+0 until end of turn. It deals damage equal to its power to target creature or planeswalker an opponent controls.
• Destroy target enchantment.
• Draw two cards.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
3 printings · $0.35 to $0.69 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Streets of New Capenna | 171 | Uncommon | $0.35 | $0.49 |
| Streets of New Capenna | 298 | Uncommon | $0.35 | $0.49 |
| Streets of New Capenna | 363 | Uncommon | — | $0.69 |
3 rulings from Wizards of the Coast
- 29 April 2022If you choose the first mode and your creature is not a legal target as Brokers Charm resolves, no damage will be dealt.
- 29 April 2022You can't choose the first mode for Brokers Charm unless your opponent has a creature or planeswalker to target.
- 29 April 2022If you choose the first mode and your opponent's creature or planeswalker is not a legal target as Brokers Charm resolves, your creature will still get +1/+0