Cheapest priced copy (Revised Edition): $0.35 at Card Kingdom, near mint, their price list as of .
Plague Rats 
Creature — Rat · */* · Common · Fourth Edition Foreign Black Border · #154
Plague Rats's power and toughness are each equal to the number of creatures named Plague Rats on the battlefield.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
13 printings · $0.35 to $74.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Unlimited Edition | 122 | Common | $1.49 | — |
| 30th Anniversary Edition | 118 | Common | $0.99 | — |
| 30th Anniversary Edition | 415 | Common | $54.99 | — |
| Revised Edition | 123 | Common | $0.35 | — |
| Fourth Edition Foreign Black Border | 154 | Common | — | — |
| Fourth Edition | 154 | Common | $0.35 | — |
| Fifth Edition | 188 | Common | $0.35 | — |
| Collectors' Edition | 122 | Common | $1.79 | — |
| Intl. Collectors' Edition | 122 | Common | $3.99 | — |
| Foreign Black Border | 123 | Common | — | — |
| Limited Edition Alpha | 121 | Common | $74.99 | — |
| Limited Edition Beta | 122 | Common | $7.49 | — |
| Summer Magic / Edgar | 123 | Common | — | — |