Spectre

Spectres or specters are incorporeal undead often mistaken for ghosts. They haunt the places where they died, retaining their sapience, but now hating all living things. Mael Shelub "convinced" a local spectre in the Silverpine Forest to join his forces. Most spectres resemble the more timid form of a shade, rather than the fearsome servants of the Scourge who were created by ritual sacrifice.