See also: Spell Combinations: Entropic Death

Codex text

Perhaps the victims would say it makes no difference, since those afflicted by a Death Hex already know there is little hope of survival, but they should avoid a Death Cloud at all costs if they do not wish to hasten the process: Merely touching the edge of the cloud is enough to set off a deadly reaction that deals truly massive spirit damage to the subject of the hex.

Further information

Truly massive spirit damage on a single enemy.