Cheapest priced copy (Return to Ravnica): $0.35 at Card Kingdom, near mint, their price list as of .
Paralyzing Grasp 
Enchantment — Aura · Common · Return to Ravnica · #46
Enchant creature
Enchanted creature doesn't untap during its controller's untap step.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Return to Ravnica | 46 | Common | $0.35 | $0.49 |
| Zendikar | 58 | Common | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 1 October 2009Paralyzing Grasp may target, and may enchant, an untapped creature. If it does, it will have no effect unless that creature becomes tapped somehow.
- 1 October 2012The enchanted creature can still be untapped by a spell or ability at other times.