Metreon cascade
The metreon cascade was designed by Dr. Ma'Bor Jetrel of the Haakonian Order. Unstable metreon isotopes were used to create a devastating explosion, with radiation effects similar to those of the atomic bomb. Those not killed or vaporized in the initial blast suffered terrible radiation poisoning and death in the aftermath. It was used only twice, on the Talaxian moon Rinax and by the Tepcomen in Fukushima, Japan.