Plasma Cannon
a crude weapon which expels a packet of ionized plasma gas at its target, most of the known versions of plasma cannons came from sources outside the known galaxy. The first recorded sighting of a plasma cannon occurred when the Charons first made an attempt to enter the galaxy from Otherspace. Decades later, a new form of plasma cannon emerged, this time in the arsenal of the Yuuzhan Vong. The Yuuzhan Vong yaret-kor plasma balls that caused initial damage upon detonation, but which also continued to eat away at any surface which the energy came in contact with.