NHL 13 developer EA Canada isn't doing anything outlandish within the game to mark the Halloween holiday — the studio is simply offering a large pack of cards.
The Halloween Mega Pack comes with a whopping 32 cards, including 18 rare cards. It costs 35,000 in-game EA Pucks, although you can purchase the pack with real money to the tune of 560 Microsoft Points on Xbox 360 or $6.99 on PlayStation 3. If you're interested, you should boot up your console soon — the Halloween Mega Pack is only available for 48 hours, today and tomorrow.
EA Canada has put together a fun trailer for the Mega Pack featuring ghostly players (the studio notes that the footage isn't representative of actual gameplay). Check it out above.