Orochimon

Orochimon is a Demon Dragon Digimon. It is gigantic and possesses eight heads, though seven of them are dummies, and the black one in the middle is the only real one. The roots of Orochimon's creation are old, and although it was a being such that it raged in all its fury in the ancient Digital World, and drove some areas to devastation, it was sealed by the servant of a "being" which sought to preserve the harmony of the Digital World.[3]