In an effort to stop the Galactic
Empire, Lady Qi'ra gambled on an
ancient device to disrupt the
Sith's connection to the Force. She
failed, and out of the ruins of her
plans emerged an evil entity.

The entity is a scourge to droids in
both the Rebellion and Empire and
continued to spread its consciousness
to any droid that it could, including
the trusted protocol droid C-3PO.

After a brief conversation with Luke
Skywalker, it dawned on the scourge
that cyborgs are the bridge to the
humans that it needs to further
spread its control.

And there is no cyborg more powerful
than Darth Vader….