Club Nintendo is giving away a “Core AR Card Set” for Kid Icarus: Uprising, including “over 400” of the cards, which is way more than I have.
All you have to do to enter (in the US or Canada) is buy the game, register it on Club Nintendo, and then opt into the contest on the same site. You have until January 6 to enter. Cards! More cards!
Buy: Kid Icarus: Uprising
See also: More Kid Icarus media