Cheapest priced copy (Shadows over Innistrad): $0.35 at Card Kingdom, near mint, their price list as of .
Quilled Wolf 
Creature — Wolf · 2/2 · Common · Shadows over Innistrad · #222
{5}{G}: This creature gets +4/+4 until end of turn.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Shadows over Innistrad | 222 | Common | $0.35 | $0.49 |