Shadows

•"The black shadow that surrounds Wander in the
shrine is part of the Dormin. The bones and muscles
that form the body are the colossus, and the shadow
is the blood that flows through it. So when you
combine them all, you get Dormin. After the colossus
is defeated, the shadows surround Wander and look
down at him, hoping that he will defeat them all soon (laughs)."
•The shadows as described in the artbook in the Existance of Dormin section.