Cheapest priced copy (Shadows over Innistrad): $0.35 at Card Kingdom, near mint, their price list as of .
Howlpack Wolf 
Creature — Wolf · 3/3 · Common · Shadows over Innistrad · #164
This creature can't block unless you control another Wolf or Werewolf.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Shadows over Innistrad | 164 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 8 April 2016If you control a second Howlpack Wolf, they can both block.