Cheapest priced copy (Kaldheim): $0.35 at Card Kingdom, near mint, their price list as of .
Arachnoform 
Enchantment — Aura · Common · Kaldheim · #159
Enchant creature
Enchanted creature gets +2/+2, has reach, and is every creature type.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Kaldheim | 159 | Common | $0.35 | $0.49 |