Juggler

n.
  1. One who juggles; one who practices or exhibits tricks by sleight of hand; one skilled in legerdemain; a conjurer.
  2. A deceiver; a cheat.
  3. A person who juggles objects, i. e. who maintains several objects in the air by passing them in turn from one hand to another.

This sense is now expressed by magician or conjurer.