Wild Card Virus
An artificially engineered virus designed to fundamentally alter the genetic structure of living subjects. Developed by the criminal scientist, Johannes Schmdit, this was released into the atmosphere on Organia III in 3174. It caused millions of deaths, and the resulting distaster was known as the Organian Atrocity. Schimdt and his accomplices were never caught (though they were later reportedly implicated in the Great Over AI Scandal of 3199, and Schmidt was reported as missing, believed killed in the subsequent fighting).