Cheapest priced copy (Scourge): $0.35 at Card Kingdom, near mint, their price list as of .
Dispersal Shield 
Instant · Common · Scourge · #33
Counter target spell if its mana value is less than or equal to the greatest mana value among permanents you control.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
1 printing · $0.35 to $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Scourge | 33 | Common | $0.35 | $2.99 |