Y7-37 and Y7-38

Y7-37 and Y7-38 are two Kig-yar cyborg brothers that are modified XD droids.

Background
These droids were sent by Lord of the Stars to Kharl who asked for them in order to help out with his planned assassination of Mandalore. To test them out they were sent on three minor covert missions without any backup against chat forces. Once raiding an outpost, destroying a commiunications tower, and obtaining a data from a chat base escaping and bringing the data back to Kharl. After succeeding three times Kharl agreed to take bring use them during the assassination attempt of Mandalore.