Cheapest priced copy (Mercadian Masques): $0.35 at Card Kingdom, near mint, their price list as of .
Alley Grifters 
Creature — Human Mercenary · 2/2 · Common · Mercadian Masques · #115
Whenever this creature becomes blocked, defending player discards a card.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
1 printing · $0.35 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Mercadian Masques | 115 | Common | $0.35 | $0.99 |
One ruling from Wizards of the Coast
- 4 October 2004It triggers only once even if blocked by more than one creature.