Many years ago, TSR put out a module in which a powerful curse transforms the PCs into doddering, aged coots. Great fun. The curse of the chibi is a variation on this idea. The undead bane poison is a retooling of some work I did for Fantasy Flight Games’s Traps & Treachery back in 2001. Also, because things aren’t scary enough, let’s add some contagious cancer to the natural world. Inspiration: Contagious cancer: The evolution of a killer by David Quammen.
Curse of the Chibi
Type curse; Save Will DC 17
Effect transform into adolescent
Description This ancient, rare curse transforms the target from an adult into an adolescent of its race. Apply a Size decrease of one category, reduce natural armor by -2 (minimum +0), and reduce both Strength and Constitution by -4. Damage dice are reduced due to the size decrease when applicable as well. The curse is negated by remove curse or break enchantment (DC 17).
Type poison, injury; Save Will DC 15
Frequency 1/round for 3 rounds
Effect 1d4 Cha damage; Cure 1 save
Cost per Dose 120 gp
Description The undead are immune to poison with the sole known exception of undead bane. This thick liquid is distilled from holy water and the ashes of a saint or good-aligned outsider.
Type disease, contact or injury; Save Fortitude DC 15
Onset 1d3 days; Frequency 1/day
Effect 1d3 Dex damage and 1 Con damage plus target is sickened; Cure 2 consecutive saves
Description Devil tumor is a type of contagious cancer. It attacks the skin and superficial muscles, those muscles which occupy the layer closest to the body’s surface. This results in painful lesions, swelling, and secondary infections.