AxeKnightmon

DarkKnightmon
DarkKnightmon is a Dark Knight Digimon whose name and design are derived from the mythological dark knight. It is the fused figure of SkullKnightmon and DeadlyAxemon, who have exchanged cups of brotherhood. Dark Knightmon, who brings the older brother's ingenuity together with the younger brother's mobility, has become a first-class warrior. The skills of DarkKnightmon, who can use the "Twin Spear" it wields to thrust, slash, sweep, or throw as the situation calls for, are very advanced, and it is said there are few people powerful enough to fight DarkKnightmon fairly to its face and defeat it. While DarkKnightmon possesses that much competency, it will use any means to achieve its goals and won't hesitate to get its hands dirty, and sometimes it will even be willing to betray its own comrades. DarkKnightmon, who is furnished to an implacable depth with merit, is an opponent that you don't want to turn into an enemy, if you can help it.

Digimon Xros Wars
Attacks
 * Twin Spear
 * Shoulder Blade
 * Undead Soldier

"DarkKnightmon + SkullGreymon + SkullSatamon"
"DarkKnightmon + SkullGreymon + SkullSatamon" is the fusion of DarkKnightmon, SkullGreymon and SkullSatamon.

In this form, DarkKnightmon gains SkullSatamon's devil wings, replacing his dark cape. His axe merges with the Nail Bone of SkullSatamon. His Twin Spear becomes single-sided, featuring the skull and bones of SkullGreymon.