Myotismon

Biography
Resurrected through the dark arts, it is the king of Undead Digimon which has obtained mighty powers. Originally a fiendish computer virus which destroyed the computer data it absorbed, it possessed the ability to revive the destroyed data as malignant computer viruses. As it possesses an extremely cruel and cunning personality, it is exceedingly difficult to destroy this Digimon. However, it cannot demonstrate its powers outside of the night, and its power is cut in half during the daytime.

How To Obtain
Myotismon is a Normal class Digimon that can be obtained from evolving Devimon at level 95.

Evolution
VenomMyotismon at Level 260.