Cheapest priced copy (The Lost Caverns of Ixalan): $0.35 at Card Kingdom, near mint, their price list as of .
Cavern Stomper 
Creature — Dinosaur · 7/7 · Common · The Lost Caverns of Ixalan · #177
When this creature enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)
{3}{G}: This creature can't be blocked by creatures with power 2 or less this turn.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The Lost Caverns of Ixalan | 177 | Common | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 10 November 2023Activating Cavern Stomper's last ability after it has been blocked by one or more creatures with power 2 or less won't change or undo those blocks.
- 10 November 2023Reducing a creature's power after it has blocked Cavern Stomper will not remove that blocking creature from combat or make Cavern Stomper unblocked.