Cheapest priced copy (Modern Horizons 2): $2.49 at Card Kingdom, near mint, their price list as of .
Obsidian Charmaw 
Creature — Dragon · 4/4 · Rare · Modern Horizons 2 · #353
This spell costs {1} less to cast for each land your opponents control that could produce {C}.
Flying
When this creature enters, destroy target nonbasic land an opponent controls.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
3 printings · $2.49 to $8.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Modern Horizons 2 | 137 | Rare | $2.79 | $8.99 |
| Modern Horizons 2 | 353 | Rare | $2.49 | $5.99Out of stock |
| Modern Horizons 2 Promos | 137s | Rare | — | $7.49 |
One ruling from Wizards of the Coast
- 18 June 2021Obsidian Charmaw's first ability counts each land your opponents control that would produce {C} if one of that land's abilities resolved. It doesn't matter whether that land's controller could currently activate the ability or not.