You might've thought that Orcs were all fleshy and a good ol'-fashioned sword through the squishy parts would be enough to take care of them. False. Some might fall to the blade, but you'll need something decidedly more cerebral to handle the others.
Middle-earth: Shadow of Mordor's Wriath has the abilities for the job. The Wraith gives the Ranger the ability to get inside the heads of his enemies to understand their strengths and fears. Exploiting this might render your weapon wholly unnecessary in certain situations; after all, why go through the work of fighting something if it'll just run itself off a cliff in a fit of terror?