Cheapest priced copy (Future Sight): $1.29 at Card Kingdom, near mint, their price list as of .
Baru, Fist of Krosa 
Legendary Creature — Human Druid · 4/4 · Rare · Future Sight · #142
Whenever a Forest enters, green creatures you control get +1/+1 and gain trample until end of turn.
Grandeur — Discard another card named Baru, Fist of Krosa: Create an X/X green Wurm creature token, where X is the number of lands you control.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $1.29 to $7.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Future Sight | 142 | Rare | $1.29 | $7.99 |
2 rulings from Wizards of the Coast
- 1 May 2007The first ability triggers when a Forest enters under any player's control, but only your creatures get the bonus.
- 1 May 2007The size of the Wurm token is determined when the activated ability resolves. It won't change as the number of lands you control changes.