User blog comment:Mixer2301/Proof of Card Jitsu SNOW!!!!!!!!!!!!/@comment-4446753-20111104083122/@comment-4446753-20111106023259

Card Jitsu Shadow will be realeased in 2013. I think you must get all the gems and stand in the giant amulet logo in the ninja hideout and it will turn and a new dojo will appear. It will be called Shadow Dojo.