Cheapest priced copy (Magic 2013): $0.35 at Card Kingdom, near mint, their price list as of .
Downpour 
Instant · Common · Magic 2013 · #48
Tap up to three target creatures.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Magic 2013 | 48 | Common | $0.35 | $0.99 |
One ruling from Wizards of the Coast
- 1 July 2012If Downpour targets more than one creature, and some but not all of the creatures are illegal targets by the time Downpour resolves, the remaining legal targets will be tapped.