MadLeomon (Fusion)

MadLeomon is a grey, zombified Leomon who serves the Bagura Empire.

Digimon Xros Wars
He appeared as a commander in the first episode of Digimon Xros Wars. He threatened the heroes, but they were saved by Shoutmon, Starmon, Pickmon, and Ballistamon. MadLeomon then absorbed the members of his army in order to become Armed MadLeomon. After being defeated as Armed MadLeomon, he reverted to his normal form and was recalled by Tactimon.

Armed MadLeomon
After this MadLeomon absorbed all of the members of the army troop he commanded, and nearly defeated both Shoutmon and Ballistamon. He was defeated when Taiki used Digi-Xros for the first time to merge Shoutmon and Ballistamon, and then Starmon and Pickmon into the Star Sword for Shoutmon to use. After this, he reverted to his normal form.