Cheapest priced copy (Time Spiral): $0.35 at Card Kingdom, near mint, their price list as of .
Aether Web 
Enchantment — Aura · Common · Time Spiral · #189
Flash (You may cast this spell any time you could cast an instant.)
Enchant creature
Enchanted creature gets +1/+1, has reach, and can block creatures with shadow as though they didn't have shadow. (Creatures with reach can block creatures with flying.)
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Time Spiral | 189 | Common | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 25 September 2006If the enchanted creature has shadow, it won’t be able to block any creatures (not even those with shadow).
- 25 September 2006The enchanted creature can block creatures with shadow and creatures without shadow.