A card game produced by Wizards of the Coast for proud nerds to play everywhere. Requires mass amounts of money to win, and sometimes ends up in nerdfights, which are slightly more dangerous than sorrority girl ticklefights. There's nothing wrong with the game if you're into that sort of thing, but most people on UrbanDictionary would gladly kick in the face of anyone seen carrying around a deck.
Nerd 1: Hey, let's go play Magic and pick up some fine ladies!
Nerd 2: Awww riiiight.