Cheapest priced copy (Modern Horizons): $0.35 at Card Kingdom, near mint, their price list as of .
Excavating Anurid 
Creature — Frog Beast · 4/4 · Common · Modern Horizons · #163
When this creature enters, you may sacrifice a land. If you do, draw a card.
Threshold — As long as there are seven or more cards in your graveyard, this creature gets +1/+1 and has vigilance.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Modern Horizons | 163 | Common | $0.35 | $0.99 |
One ruling from Wizards of the Coast
- 14 June 2019While resolving Excavating Anurid’s triggered ability, you can’t sacrifice multiple lands to draw multiple cards.