Cheapest priced copy (Magic 2012): $0.35 at Card Kingdom, near mint, their price list as of .
Griffin Rider 
Creature — Human Knight · 1/1 · Common · Magic 2012 · #20
As long as you control a Griffin creature, this creature gets +3/+3 and has flying.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Magic 2012 | 20 | Common | $0.35 | $0.49 |