Someone who possesses wizardry is someone who is amazing at what they do, especially if what they do requires creativity. You might rave about your sister's theatrical wizardry after she performs well in the school play.
You might already know that a wizard is someone who has magical abilities. But a wizard can also be someone who is really good at something. The class clown, for example, might secretly be a wizard at chess. A way to talk about his exceptional skills would be to use the word wizardry. You might say that his wizardry with the chessboard can’t be topped — even by the class nerd!