Cheapest priced copy (Wilds of Eldraine): $0.35 at Card Kingdom, near mint, their price list as of .
Boundary Lands Ranger 
Creature — Human Ranger · 2/2 · Uncommon · Wilds of Eldraine · #123
At the beginning of combat on your turn, if you control a creature with power 4 or greater, you may discard a card. If you do, draw a card.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Wilds of Eldraine | 123 | Uncommon | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 1 September 2023At the beginning of combat on your turn, Boundary Lands Ranger's ability will check to see if you control a creature with power 4 or greater. If you don't, the ability won't trigger at all. If the ability does trigger, it will check again as it tries to resolve. If you no longer control a creature with power 4 or greater (usually because your applicable creature is no longer on the battlefield), the ability won't do anything.