Cleaning up my spare Humble Bundle keys, and I'm sure I can make someone happy with this :)

May the patato be with you!

Please note: Humble Bundle only says "Batman™: Arkham Origins DLC", however it's actually the "Millennium Skins Pack for Batman: Arkham Origins".
source: http://blog.humblebundle.com/post/66889989465/scorpion-says-get-over-here-four-new-games-dlc