Cheapest priced copy (Urza's Destiny): $0.35 at Card Kingdom, near mint, their price list as of .
Disease Carriers 
Creature — Rat · 2/2 · Common · Urza's Destiny · #57
When this creature dies, target creature gets -2/-2 until end of turn.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
1 printing · $0.35 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Urza's Destiny | 57 | Common | $0.35 | $1.49 |