Cheapest priced copy (Odyssey): $0.35 at Card Kingdom, near mint, their price list as of .
Dirty Wererat 
Creature — Human Rat Minion · 2/3 · Common · Salvat 2005 · #A31
{B}, Discard a card: Regenerate this creature.
Threshold — As long as there are seven or more cards in your graveyard, this creature gets +2/+2 and can't block.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
5 printings · $0.35 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Odyssey | 130 | Common | $0.35 | $0.99 |
| Hachette UK | 7 | Common | — | — |
| Hachette UK | 31 | Common | — | — |
| Salvat 2005 | A7 | Common | — | — |
| Salvat 2005 | A31 | Common | — | — |