Star-Blight is not a natural disease; it is cosmic cellular decay caused by exposure to the raw, unrefined magic of the Fallen Star []. Known colloquially along the borderlands as The Pale Curse or Starlight Rot, it behaves like localized, volatile arcane radiation.
The sickness occurs most frequently in the Star-Fall Crater [], the Sunder-Sea [], and among black-market smugglers who handle raw starmetal []. Because the cosmic energy forces the infected body to constantly channel magic it wasn't built to hold, it slowly converts the victim's organic tissue into living, volatile crystal until their life force is entirely consumed.