The Valeyard

Name/Alias: The Valeyard

Age: Depends on incarnation; Several hundreds of years

Race: Timelord 

Plane of origin: Gallifrey 

Transport:
The TARDIS
(Time and Relative Dimension in Space) After the Last Great Time War, the Third Valeyard stole a Type 80, which was a prototype Tardis that was rumored to be able to travel through dimensions as well as Time and space.
Brief summary:

The Valeyard is an anomoly in the sense that he was never born, rather created by the Timelords in order to reprimand a Timelord called The Doctor. After they were done with him, they trapped him in a micro universe, where he was suspended in time. Later, he was stolen away by a man who called himself Epsilon, and took him to the other side of the planet to conduct experiments on his body. The harsh nature of the experiments caused him such trauma, that he was forced to regenerate, only after spending a single concious year in his first incarnation. By the time Epsilon was done with him, the early days of the Time War were upon them......

Weapon: The Arbitor 
Created by Epsilon using Timelord technology, as well as technology and resources taken from other worlds, cultivating in one master weapon. It has the ability to change according to the User's preferred fighting style, which is crucial to the Time Lord as their fighting style can change as a result of regeneration.

Child of Epsilon: The experiment that Epsilon forced upon The Valeyard made his body many times more durable than the average Timelord. He was faster, stronger, and could regenerate from trauma that would permanently disable the ability to regenerate. He is simply built different.