The Mockery

The Sovereign of Betrayal and Bloodshed, The Mockery represents dishonorable combat and unjust war. His worshipers include assassins, rogues, and evil warriors. He is also known as the Betrayer and was once known as a member of the triumvirate of Overdeites before being flayed and cast out.
He is often portrayed as a ghastly human warrior with the skin stripped from his body, cloaked instead in the skins of his enemies. His other common portrayal is that of a half-fiend red dragon.
Just like the majority of the other Overdieties, following the Schism he doesn't interfere all that much with the world directly. He is known to have a small cult under himself called the Flayed Hand. These fanatics are renowned for their unflinching dedication to the skinless god and to a belief system known as the path of pain. The order’s members ritually mutilate themselves (and others), and work to spread fear and treachery among the Vassals of the Host. Most are so consumed with their ideology that they truly believe the Mockery to stand above all other deities, and even those who also pray to other gods do so only rarely. The sect is infamous for performing assassinations with cold efficiency.

Divine Domains

The Mockery's Portfolio includes Combat, Dishonour, Murder, Terror and Treachery.

Holy Books & Codes

While he doesn't have a holy book per se, sacrifices and prayers to him are highly ritualized. Sacrifices are usually either a weapon from the petitioner's enemy or an animal they killed while hunting. 
Additionally, priests must know betrayal personally and thus bring ruin to someone close to them before they can join the order. They must also know something about surgery and anatomy.

"The Sovereign of Betrayal and Bloodshed."

Divine Classification

Overdeity