Wizard is a non-Magic card game, basically every-player-for-himself Spades.
Brief synopsis of the rules (I'll post clarifications/answers when I actually get my hands on the rules tonight): You get X cards based on the round number (like I explained above). I tell you the trump (IRL, it's the next card turned over after the deal). You tell me how many "tricks" you expect to take in the round (hopefully everyone is familiar with that term). Play is like Spades or Hearts: someone leads a suit, you must follow if possible or play anything, high card or high trump takes the trick. In addition, there are 4(?) Wizards cards which supercede the trump and 4(?) Jester cards which are lower than a 2. You can play these special cards at any time. First one played wins. If the first card played is a Wizard, it wins the trick (being the first) and the remaining players can play any card (including another Wizard). If the first card played is a Jester, the next player's card determines the suit. If the whole hand played consists of Jesters, the first one played wins.
Scoring: Kind of like spades, you get 20 + 10 * your bid if you make it. If you miss your bid, either by going over or under, you get -10 * the difference of your bid.