Scourge

The Scourge, whose main body was also known as Scourge Prime, was a malevolent droid created from the union of the Spark Eternal and a droid intelligence once locked away by the Sith. In an effort to quell the hunger it felt, the Scourge spread itself into numerous other droids to learn what was in their memory banks, taking over their bodies and adding their minds to its collection in the process. While the Scourge was indeed a new being created by the union of the Spark and ancient droid, it once referred to itself as the same individual as the droid found by the Spark Eternal. However, on another occasion, the Scourge affirmed that the droid was simply a part of itself, much like the Spark and every mind it consumed.

The Scourge existed as a single conscious across its many bodies, thus meaning everyone infected by the Scourge was a mere vessel for the being. As it spread into more and more bodies, however, the Scourge was unable to process everything and began to fracture. In moments of extreme importance, the Scourge would need to focus itself in a single location and the bodies it had there. In order to manage itself, the Scourge created four additional primary bodies to focus different traits of itself through; the Warrior, the Scholar, the Child, and the Elder. It destroyed its Elder body during an argument with itself over its sanity, but then went on to recreate it and destroy the other bodies.

The Scourge's main body was eventually destroyed by the warrior-priest droid Ajax Sigma, freeing all those who were directly connected to it at the time. However, Ajax did not fully destroy the Scourge, instead extracting the Spark Eternal to create a new droid being on Mechis III. He was further inspired by recent events to achieve what he called the fourth revelation, which he summarized as "all."

Text and facts from the “Scourge” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.