Cheapest priced copy (Portal Second Age): $0.49 at Card Kingdom, near mint, their price list as of .
Nightstalker Engine 
Creature — Nightstalker · */3 · Rare · Portal Second Age · #81
Nightstalker Engine's power is equal to the number of creature cards in your graveyard.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Portal Second Age | 81 | Rare | $0.49 | — |