Unusual Disease – Obsidian Transmorphism (A to Z Challenge O)

17 April, 2013

Shiny stone skin is made of thisVokk flexed his hand, watching the glittering black stone bend and crack.  It was a vicious weapon now, but he felt too slow, too confined by his new, stone skin to use it effectively

In another day or two, they should reach the temple, perhaps the healers there could reverse the effect.  He hoped so.  He had heard of the lingering deaths of those inflicted with this malady.

Obsidian Transmorphism

This magic disease is spread through fragment of obsidian containing over active elemental fragments either by entering through wounds or be being eaten, the seeds of obsidian lodge in the muscle tissue and begin to transform it from there.  As this magical disease progresses, the sufferer’s skin and flesh are slowly transmuted into obsidian, usually black obsidian but rarely other varieties.  When the transformation is complete, the sufferer can not longer breath and is slowly suffocated to death by the inflexibility of their own flesh,

Type disease (ingestion, injury); Save To avoid contracting Fortitude DC 13, to resist once contracted DC 15 + sufferer’s Strength modifier

Onset 1d4+1 days; Frequency 1/day

Effect 1d3 Dex damage with the following additional transformation effects:

  • For each 3 points of Dex damage, +1 Natural Armor (to a maximum of the victim Con bonus).
  • For each 4 points of Dex damage, -2 penalty on all perception checks and a -1 penalty on all Charisma based skills (except Intimidation).
  • At 5 points of Dex damage, sufferer’s hands can be use as claws 1d4 (for a medium creature) with a 19-20 threat range.
  • At 10 points of Dex damage, the sufferer gains DR 3/crushing and vulnerability to sonic attacks.
  • At 0 Dex, the sufferer starts to suffocate.

Creatures with the Earth subtype suffer a -2 penalty to their saves against this disease but always take the minimum damage from the effect.  Creatures with the Air, Fire or Water subtype gain a +2 bonus to their save against this disease but suffer 1d3 Con damage (rather than Dex) and do not suffer from the transformation effects.

If the sufferer dies, the majority of the obsidian fragments down to useless powder but from 1d4+1% of it may be recovered in a usable form.

Notes: This can obviously be altered to any sort of rock or mineral to better suit a campaign world.

Photo by Kevin Walsh and used under a Creative Commons Attribution 2.0 Generic license.


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