Ghostly Orb

Ghostly Orbs were objects akin to monster generators, creating a Wraith every few seconds until they are destroyed. They have only been seen in the WWI 2008 movie, when four of them emerged from the floor in a trapped room and began producing wraiths as soon as they are active.

The Orbs do not appear in the released game, but similar mechanics are used by Summoners, as well as orbs in the Archives of Zoltun Kulle.