Reaper

The Reaper broke out of the Forbidding with the Dagda Mor.

Dressed head to toe in robes the colour of damp ashes, its face carefully hidden in the shadows of a broad hood. It was a massive creature, heavily muscled, almost 7 feet tall when it rose to its full height. Moved with the grace and ease of an Elven hunter – smooth, quick, fluid and noiseless.¹The Elfstones of Shannara – pp 20-21

Ten times more dangerous than the Changeling as killing was the function of its existence. Once it began a hunt, it never gave up. Even the Dagda Mor was wary of its power, especially given the Reaper merely served him on a whim, rather than out of fear like others did.²The Elfstones of Shannara – pp 20-21

The Elfstones of Shannara

Along with the Changeling, the Reaper followed the Dagda Mor when he broke out of the Forbidding.³The Elfstones of Shannara – p 16