From Middle-earth: Shadow of Mordor
The Black Hand of Sauron is the greatest and most feared of the Black Captains. His mere presence spreads terror to all on the battlefield be it foe or servants alike. Some say he was once a king from the east who brought Sauron the heads of two Istari as gifts. Others say that he returned across the seas with Sauron after the fall of Númenor. Still others claim that he is the Dark Lord himself, taking fair form once again within Mordor. There are many stories of his origins. All of them are lies. The only things which are certain are that he is a master of deceit, and that he serves his Dark lord with absolute loyalty.