Magic Duels Wikia
Card name: Renegade Wheelsmith
Mana Cost: 1RedWhite
Converted Mana Cost: 3
Types: Creature — Dwarf Pilot
Card Text: Whenever Renegade Wheelsmith becomes tapped, target creature can't block this turn.
Flavor Text: Many veterans of the Ovalchase racetrack turned their talents to the renegade cause.
P/T: (3/2)
Expansion: DU.png Starter set
Rarity: Uncommon

Renegade Wheelsmith.png

Card rulings (?)
2017-02-09 This 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.
2017-02-09 For 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.