This paper model is SkullSatamon, an Undead Digimon whose name and design are derived from "Skull" and the mythological Satan, based on the anime, manga and video games series Digimon, the papercraft is created by PapercraftKing. The finished model stands about 50cm tall.
Pursuing strength and destruction, it fell to the Dark Area as a Fallen Angel Digimon with its appearance a ruin of what it once was. However, its wickedness was refined even more, so that its dark powers are unfathomable. Its DigiCore, concentrated with mighty powers of darkness, is the characteristic of Demon-species Digimon called the "Dark Core". [Source: wikia]