Cheapest priced copy (Guildpact): $0.35 at Card Kingdom, near mint, their price list as of .
Shadow Lance 
Enchantment — Aura · Uncommon · Guildpact · #14
Enchant creature
Enchanted creature has first strike.
{1}{B}: Enchanted creature gets +2/+2 until end of turn.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper