Shademon

Shademon is a minor villain in the manga version; Digimon Xros Wars

Appearance
Shademon is an Unknown Level Dgimon that resembles a giant shadow with multiple eyes. He also has an alternate form when he absorbs Nene.

Digimon Xros Wars (Manga)
Shademon is a member of the Twilight Army. It absorbed Nene so it could become more stronger. When this happened, Shademon became a nameless hybird of Digimon and Human, simply known as Nene+Shade.