Cheapest priced copy (Core Set 2021): $0.35 at Card Kingdom, near mint, their price list as of .
Kitesail Freebooter 
Creature — Human Pirate · 1/2 · Uncommon · Core Set 2021 · #107
Flying
When this creature enters, target opponent reveals their hand. You choose a noncreature, nonland card from it. Exile that card until this creature leaves the battlefield.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.35 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Core Set 2021 | 107 | Uncommon | $0.35 | $0.49 |
| Ixalan | 110 | Uncommon | $0.35 | $0.79 |
One ruling from Wizards of the Coast
- 23 June 2020If Kitesail Freebooter leaves the battlefield before its enters-the-battlefield ability resolves, the opponent will reveal their hand, but no card will be exiled.