Brush Racer

Flying, haste
Reckless{2}{b}{r}{g}( You may cast this creature for its reckless cost. If you do, lands tapped this way don't untap during your next untap step.)
When Brush Racer enters that battlefield, choose an opponent at random. That player discards a card at random. If that card is a instant or sorcery card repeat this effect until a instant or sorcery card isn't discarded.