Cheapest priced copy (Avacyn Restored): $0.35 at Card Kingdom, near mint, their price list as of .
Riot Ringleader 
Creature — Human Warrior · 2/2 · Common · Avacyn Restored · #152
Whenever this creature attacks, Human creatures you control get +1/+0 until end of turn.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Avacyn Restored | 152 | Common | $0.35 | $0.49 |