Rashek

Rashek, later known as The Lord Ruler, is the ruler of The Final Empire and the Sliver of Preservation.

History
He lived as a powerful Terrismen before the ascension of the Lord Ruler, and served as the Packman of Alendi, whom he despised, thinking him as unfit of the burden of being the Hero of Ages.

He spoke against him constantly, and always expected the worst of him, and accusing him of every happening. Such as believing he to be the one who killed Fedik.

Ascension and Rule
Before reaching the Well of Ascension he murdered Alendi, and took on the mantle of the Hero of Ages himself, imbibing Lerasium and becoming a powerful Mistborn, and moving Scadrial closer to the sun with the power of Preservation.

With his new power he exerted his authority over mankind and founded the Final Empire, placing himself as the King, and granted beads of Lerasium to his most respected beneficiaries.

In order to enforce his rule he created the Inquisitors and founded the Steel Ministry, which venerated him as a God, the Sliver of Infinity, and brainwashed the people into worshipping him, as that they won't revolt.

He ruled over for a thousand years, keeping himself young through Atium Compounding, with the source of his Atium coming from slaves at the Pits of Hathsin. ￼

In order to prevent anyone from learning of the method of Compounding he began to subjugate the Terrismen and force them into breeding programs, where many of the men were castrated, so that none could breed with humans and bear children able to use both magics.

He was slain by Vin Venture, who used the Mists to tear his Atium Metalminds off of his body, leading to a thousand years of aging being slammed down upon him in an instant, leading to his death.

Abilities
As a mere Terrismen he was an adept user of Feurochemy.

Post-Ascension
Powered by Lerasium, he is an adept wielder of both Allomancy and Feuruchemy, able to use all sixteen metals to their fullest extents, and is able to increase the effects to even further extremes through Compounding.

Through this he became one of the most powerful beings on Scadrial. ￼