Cheapest priced copy (Innistrad Remastered): $0.35 at Card Kingdom, near mint, their price list as of .
Pack Guardian 
Creature — Wolf Spirit · 4/3 · Uncommon · Shadows over Innistrad · #221
Flash
When this creature enters, you may discard a land card. If you do, create a 2/2 green Wolf creature token.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
3 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Innistrad Remastered | 211 | Uncommon | $0.35 | $0.49 |
| Innistrad Remastered | 416 | Uncommon | $0.35 | $0.49 |
| Shadows over Innistrad | 221 | Uncommon | $0.35 | $0.49 |