Cheapest priced copy (Innistrad: Double Feature): $0.35 at Card Kingdom, near mint, their price list as of .
Steelclad Spirit 
Creature — Spirit · 3/3 · Common · Innistrad: Crimson Vow · #80
Defender
Whenever an enchantment you control enters, this creature can attack this turn as though it didn't have defender.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Innistrad: Double Feature | 347 | Common | $0.35 | $0.49 |
| Innistrad: Crimson Vow | 80 | Common | $0.35 | $0.49 |