Cheapest priced copy (Streets of New Capenna): $0.35 at Card Kingdom, near mint, their price list as of .
Backup Agent 
Creature — Human Citizen · 1/1 · Common · Streets of New Capenna · #2
When this creature enters, put a +1/+1 counter on target creature.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Streets of New Capenna | 2 | Common | $0.35 | $0.49 |