Cheapest priced copy (Scourge): $0.35 at Card Kingdom, near mint, their price list as of .
Dragon Scales 
Enchantment — Aura · Common · Scourge · #10
Enchant creature
Enchanted creature gets +1/+2 and has vigilance.
When a creature with mana value 6 or greater enters, you may return this card from your graveyard to the battlefield attached to that creature.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
1 printing · $0.35 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Scourge | 10 | Common | $0.35 | $1.49 |