Cheapest priced copy (Aether Revolt): $0.35 at Card Kingdom, near mint, their price list as of .
Renegade Wheelsmith 
Creature — Dwarf Pilot · 3/2 · Uncommon · Aether Revolt · #134
Whenever this creature becomes tapped, target creature can't block this turn.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Aether Revolt | 134 | Uncommon | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 9 February 2017This is a triggered ability, not an activated ability. It doesn’t allow you to tap Renegade Wheelsmith whenever you want; rather, you need some other way of tapping it, such as by attacking or crewing a Vehicle.
- 9 February 2017For the ability to trigger, Renegade Wheelsmith 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.