Cheapest priced copy (Aether Revolt): $0.35 at Card Kingdom, near mint, their price list as of .
Reckless Racer 
Creature — Human Pilot · 2/3 · Uncommon · Aether Revolt · #95
First strike
Whenever this creature becomes tapped, you may discard a card. If you do, draw a card.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Aether Revolt | 95 | Uncommon | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 9 February 2017For the ability to trigger, Reckless Racer has to actually change from untapped to tapped. If an effect attempts to tap it, but it was already tapped at the time, this ability won’t trigger.
- 9 February 2017This is a triggered ability, not an activated ability. It doesn’t allow you to tap Reckless Racer whenever you want; rather, you need some other way of tapping it, such as by attacking or crewing a Vehicle.