Darth Wrath was made using parts from two different Iron Man figures, three different Darth Mauls, a Battle Droid and two different StarWarsGeek head casts.
Here is his backstory:
Darth Wrath, Sith Cyborg
When General Romulous Panick was searching for the Dark Reaper in the Sith Temple on Thule, death was all around him. Among the scattered remains of the beings who passed though these unholy halls before him, General Panick made a startling discovery. Tucked into a shrine-like alcove, he discovered a skull that resembled that of a human. Except this skull emitted a faint red glow. As General Panick got closer to the skull, he was amazed to discover that it contained a lone eyeball and had several pieces of tattered flesh still clinging to it. As the eye rolled in it’s long dead socket to grasp the General in it’s gaze, he knew what had to be done.
General Panick retrieved the skull and took it with him, back to Panickorps headquarters. If it had living flesh, it could be cloned. Under the guidance of Panickorps’ lead scientist, Dr. Payn, the skull was placed in a cloning chamber to begin the process. Soon it was evident that this may have been a mistake.
As Dr. Payn and General Panick watched from a control room, the skull violently reacted with the cloning process. Instead of passing genetic information to the cloning computers, the skull started drawing life forces from the cloning system itself. And then it started regenerating. As the creature’s body began to reform, it started to steal the life from the Panickorps scientists working on it in the chamber. One by one the scientists began to wither away to dust and bone, and as each one died, more life was given to the skull.
Knowing something had to be done before the skull gained power beyond control and consumed the entire complex, General Panick entered the chamber and captured the remains in a Force attack. This seemed to feed the beast, and it’s nervous system soon started to form. By the time the General was able to get the being under control, it had formed a brain and spinal column. When the brain had fully formed, it’s thoughts reached out to General Panick; “Who are you who dares to awaken Darth Wrath?!?!” General Panick fired back to the mind of the ancient Sith, “Submit to me and be reborn, or resist and die forever!” The ancient Sith had no choice but to submit.
A new scientific crew was brought in, this time for containment instead of cloning. The remains were quickly put into a life support unit and the cyborg Darth Wrath was born.