Cheapest priced copy (Fourth Edition): $0.35 at Card Kingdom, near mint, their price list as of .
Erosion 
Enchantment — Aura · Common · Fourth Edition · #70
Enchant land
At the beginning of the upkeep of enchanted land's controller, destroy that land unless that player pays {1} or 1 life.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
4 printings · $0.35 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Fourth Edition Foreign Black Border | 70 | Common | — | — |
| Fourth Edition | 70 | Common | $0.35 | — |
| The Dark | 26 | Common | $0.35 | — |
| Renaissance | 29 | Common | — | — |