There's free content released for Shadow of Mordor that lets you dress up as the person you swore to kill: the Black Hand. He's the leader of the Black Captains - the person who killed your family.
But it's only his appearance you'll take on: your powers and your abilities are your own.
The Power of the Shadow bundle also offers new epic runes. One gives you immunity to uruk captain or ghul poison attacks; another gives you double slow-mo time when aiming your bow; and the other halves the damage enemies do to you.
Power of the Shadow is out now on PlayStation 4, Xbox One and PC. Shadow of Mordor isn't out until 21st November on PS3 and 360.