Cheapest priced copy (Modern Horizons): $0.35 at Card Kingdom, near mint, their price list as of .
Geomancer's Gambit 
Sorcery · Common · The List · #MH1-125
Destroy target land. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle.
Draw a card.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
2 printings · $0.35 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Modern Horizons | 125 | Common | $0.35 | $0.79 |
| The List | MH1-125 | Common | $0.35 | — |
One ruling from Wizards of the Coast
- 14 June 2019If the target land is an illegal target by the time Geomancer’s Gambit tries to resolve, the spell doesn’t resolve. Its controller doesn’t search for a basic land card and you don’t draw a card. If the target is legal but not destroyed (most likely because it has indestructible), its controller does search and you do draw.