The Traveling Wizard is a man of minor repute. He has made great impacts on a few places and people. Those that know him, know him to be powerful. However, most do not know him, for he travels the world. He seeks experience and knowledge, craves adventure. The journeys of the Traveling Wizard seem to never end.
Tarot Cards are used by Magic folks to predict the future (cartomancy). Since the present becomes the future through the interplay of elementally alligned forces, the tumble of cards can give clues to the way the pattern of elements will be in the future.
This means a wizard will have a deck of cards with them. Since cards were used to train wizards in legerdemain, Since they have cards with them, they frequently know how to use them. Guild magic users often have a knack for fancy shuffles, palming cards, and a variety of card tricks and games.