Cheapest priced copy (Worldwake): $3.49 at Card Kingdom, near mint, their price list as of .
Canopy Cover 
Enchantment — Aura · Uncommon · Worldwake · #98
Enchant creature
Enchanted creature can't be blocked except by creatures with flying or reach.
Enchanted creature can't be the target of spells or abilities your opponents control.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $3.49 to $12.99 at Card Kingdom
One ruling from Wizards of the Coast
- 15 April 2013This is not the same as hexproof. If, for example, you target one of your opponent’s creatures, your opponents won’t be able to target their own creature with spells or abilities.