This virus slowly turns the victim’s bodily fluids into a solid calcified substance. Sufferers typically suffocate on their own blood well before their blood completely calcifies. As the body decomposes, fluids calcify as well, until the body turns into bones and dust.

The dust carries the disease and can become infectious if breathed in or ingested. Creatures exposed to the disease must make a DC 14 Constitution saving throw or become infected.

Within a day, the victim begins to feel pain and fatigue. After 3 days, the creature begins to develop rough patches over the skin that feel hard and thick.

At this stage, the creature has disadvantage on Constitution checks (but not saving throw). After 8 days, the creatures become blind and develops stiff joints, gaining disadvantage on Dexterity checks, as well as reducing their movement speed by half.

After 18 days the infected creature must make a DC 12 Constitution saving throw every hour or begin to suffocate. There is no cure for the crystal virus.

Creatures suffering from the disease remain infected until the disease is cured with magic or they die.

Curiously, if an infected creature has their shape changed, they may attempt another save to end the disease when they return to their original form.