WordNet sense 1 (one who practices magic or sorcery):

magician, necromancer, sorcerer, thaumaturgist, thaumaturge

WordNet sense 2 (someone who is dazzlingly skilled in any field):

ace, adept, champion, genius, hotshot, maven, sensation, star, superstar, virtuoso, whiz, whizz, wiz, mavin, adept

WordNet sense 3 (possessing or using or characteristic of or appropriate to supernatural powers):

charming, magic, magical, sorcerous, witching, wizardly

WordNet sense 4 (not existing in nature or subject to explanation according to natural laws; not physical or material):

supernatural