Source : Webster's Revised Unabridged Dictionary (1913)

Trickster \Trick"ster\, n.
   One who tricks; a deceiver; a tricker; a cheat.

Source : WordNet®

trickster
     n 1: someone who plays practical jokes on others [syn: {prankster},
           {cut-up}, {tricker}, {hoaxer}, {practical joker}]
     2: someone who leads you to believe something that is not true
        [syn: {deceiver}, {cheat}, {cheater}, {beguiler}, {slicker}]
     3: a mischevous supernatural being found in the folklore of
        many primitive people; sometimes distinguished by
        prodigious biological drives and exaggerated bodily parts