Cheapest priced copy (Invasion): $0.35 at Card Kingdom, near mint, their price list as of .
Phyrexian Slayer 
Creature — Phyrexian Minion · 2/2 · Common · Invasion · #118
Flying
Whenever this creature becomes blocked by a white creature, destroy that creature. It can't be regenerated.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
1 printing · $0.35 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Invasion | 118 | Common | $0.35 | $0.99 |