Cheapest priced copy (Commander Legends): $0.35 at Card Kingdom, near mint, their price list as of .
Amorphous Axe 
Artifact — Equipment · Common · Modern Horizons · #219
Equipped creature gets +3/+0 and is every creature type.
Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Legends | 295 | Common | $0.35 | $0.49 |
| Modern Horizons | 219 | Common | $0.35 | $0.49 |