Cheapest priced copy (Shards of Alara): $0.35 at Card Kingdom, near mint, their price list as of .
Blister Beetle 
Creature — Insect · 1/1 · Common · Shards of Alara · #66
When this creature enters, target creature gets -1/-1 until end of turn.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Shards of Alara | 66 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 1 October 2008If there are no other creatures on the battlefield when Blister Beetle enters, it must target itself.