Cheapest priced copy (Edge of Eternities): $0.35 at Card Kingdom, near mint, their price list as of .
Beamsaw Prospector 
Creature — Human Artificer · 2/1 · Common · Edge of Eternities · #89
When this creature dies, create a Lander token. (It's an artifact with "{2}, {T}, Sacrifice this token: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.")
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Edge of Eternities | 89 | Common | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 25 July 2025Some spells and abilities that create Lander tokens require targets. If each target chosen is an illegal target as that spell or ability tries to resolve, it won’t resolve. The Lander token won’t be created.
- 25 July 2025Lander tokens are a kind of predefined token. Each one is a colorless artifact with the artifact subtype Lander and the ability “{2}, {T}, Sacrifice this token: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.”