Cheapest priced copy (Oath of the Gatewatch): $0.35 at Card Kingdom, near mint, their price list as of .
Loam Larva 
Creature — Insect · 1/3 · Common · Oath of the Gatewatch · #135
When this creature enters, you may search your library for a basic land card, reveal it, then shuffle and put that card on top.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Oath of the Gatewatch | 135 | Common | $0.35 | $0.49 |