Cheapest priced copy (Dissension): $0.35 at Card Kingdom, near mint, their price list as of .
Steeling Stance 
Instant · Common · Dissension · #18
Creatures you control get +1/+1 until end of turn.
Forecast — {W}, Reveal this card from your hand: Target creature gets +1/+1 until end of turn. (Activate only during your upkeep and only once each turn.)
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Dissension | 18 | Common | $0.35 | $0.49 |