Donner and Schlag

Overview
Donner and Schlag are the names of Nico's twin Archdevil Arm pistols, the evolved forms of Ebony and Ivory. They were formed after the repelling of the Youma in the Lowee City of RABONA during the mission to destroy the Youma Production Facility.

Origins
Little is known about their origin story, as upon obtaining the right to use them Nico wasn't informed much about them by their manifestations. Instead, they simply chose to remain quiet, although Byakko did try to get them to talk only to nearly get shot at by one of them.

Appearance
These Archdevil Arms take the forms of two large, black-colored yet futuristic-looking revolvers with crimson lines going across their sides. No longer was there one black and one white anymore, both of them had truly just embraced one color scheme and one scheme only instead of one being light and the other being like darkness. One could say that both embraced the darkness, both of them had become the monsters inside.

Abilities
Initially, their abilities are unknown to Nico until he properly tests them out at the Youma Facility.