Cheapest priced copy (Seventh Edition): $0.35 at Card Kingdom, near mint, their price list as of .
Granite Grip 
Enchantment — Aura · Common · Seventh Edition · #195
Enchant creature
Enchanted creature gets +1/+0 for each Mountain you control.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
3 printings · $0.35 to $5.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Seventh Edition | 195 | Common | $0.35 | — |
| Seventh Edition | 195★ | Common | — | $5.99 |
| Urza's Legacy | 81 | Common | $0.35 | $1.49 |