User blog comment:JJGaming/Card-Jitzu Shadow Proof (These May or May not be Real)/@comment-4243521-20140305212038

Eh, the sky means nothing IMO. In the swfs, it's labeled as "mixed" not "shadow", like how the blue and red skies are labeled "fire" and "water". The cave is meant to be Tusk's cave I think, despite the geographical inaccuracy.