Cheapest priced copy (Magic 2013): $0.35 at Card Kingdom, near mint, their price list as of .
Encrust 
Enchantment — Aura · Common · Magic 2013 · #49
Enchant artifact or creature
Enchanted permanent doesn't untap during its controller's untap step and its activated abilities can't be activated.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Magic 2013 | 49 | Common | $0.35 | $0.49 |
| Magic 2015 | 53 | Common | $0.35 | $0.49 |
3 rulings from Wizards of the Coast
- 18 July 2014Static and triggered abilities are unaffected by Encrust.
- 18 July 2014The permanent can be untapped by other spells and abilities.
- 8 June 2016Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keywords are activated abilities and will have colons in their reminder text.