Brainworms

Individually, these tiny parasites are almost invisible to the naked eye, yet en masse they’re capable of taking down even the strongest animals. Entering the body through contact with an infected host or corpse (especially through open wounds), these thin worms quickly migrate to the brain and begin reproducing. The infestation is typically evidenced by a dulling of the senses and intellect and by erratic bouts of irrational rage toward other creatures during which the worms attempt to spread to other hosts through combat and injury. Examining the brain of a late-stage victim reveals a living carpet of thousands of tiny parasites.

Type disease (parasite), contact or injury; Save Fortitude DC 14

Onset 1 day; Frequency 1/day

Effect 1d3 Wis damage and 1d3 Int damage, if damaged in combat, target must make a second Fort save or gain the confused condition for the duration of the encounter; Cure 2 consecutive saves