Suicidal Shadow Haunt CR 10
CE Persistent haunt (60-ft. to 100-ft.-radius of a Shadow Overlap)
Caster Level 10th
Notice Perception DC 22 (to notice subtle movements of the shadows)
hp 45; Trigger proximity; Reset 1 minute
Effect When the suicidal shadow haunt is triggered, creatures inside of its radius make a DC 18 Fortitude save to resist its effects. Creatures that fail this save take 1 point of Constitution damage after 1d10 rounds but seem to be unaffected otherwise, though in truth the suicidal shadow haunt grants some limited malevolence and intelligence to their shadow. Only a true seeing spell recognizes that a suicidal shadow is present before it strikes.
The next time a creature affected by the suicidal shadow haunt goes to sleep their silhouette animates itself in a fashion similar to shadow projection, though the shadow is focused entirely on killing its originator. The instant before a suicidal shadow attacks, its originator receives a DC 18 Will save to wake up and resist it but otherwise takes a coup de grace attack while they slumber (made with whatever weapons the shadow has at hand).
Destruction Removing the supernatural affliction of the suicidal shadow haunt requires a remove curse and remove disease cast within the same minute, causing an additional point of Constitution damage. To completely destroy the suicidal shadow haunt a total of 5 suicidal shadows must be simultaneously subjected to daylight effects until destroyed.
[Submitted by Stefanos "netlich" Patelis!]