Cheapest priced copy (Shadows over Innistrad): $0.35 at Card Kingdom, near mint, their price list as of .
Stromkirk Mentor 
Creature — Vampire Soldier · 4/2 · Common · Shadows over Innistrad · #137
When this creature enters, put a +1/+1 counter on another target Vampire you control.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Shadows over Innistrad | 137 | Common | $0.35 | $0.49 |