This is Expansion Pack #1 to Silent Night, Deadly Night the Game, published in 2022. It is sealed in the original shrinkwrap.
From the publisher:
4 new player pieces!
10 new game cards!
These cards incorporate both new actions and group actions into the game. They also poke fun at the negative media backlash to Silent Night, Deadly Night. Just add them to the stack that comes with the game for an easy and fun upgrade to your game play!
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Shipping combined for multiple purchases. Delivery confirmation included on all domestic packages.